2025
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Fauziah,; Hayati, Nur; Prasetyo, Lilik B Mapping of hotspots and burn areas based on QGIS in relation to Peatland fire vulnerability on Sumatra Island Conference AIP Conference Proceedings, vol. 3250, 2025. @conference{nokey,
title = {Mapping of hotspots and burn areas based on QGIS in relation to Peatland fire vulnerability on Sumatra Island},
author = {Fauziah and Nur Hayati and Lilik B Prasetyo},
year = {2025},
date = {2025-04-30},
urldate = {2025-04-30},
booktitle = {AIP Conference Proceedings},
volume = {3250},
issue = {1},
abstract = {Peatlands in Indonesia cover 10.8% of the country’s land area and are found in Kalimantan, Papua, and Sumatra. Peatlands store large amounts of water and help to prevent floods and droughts in surrounding areas. However, poor management of peatlands has led to frequent wildfires in Indonesia. In 2015, wildfires in Sumatra produced hazardous haze that affected the health of over 100,000 people in Indonesia, Malaysia, and Singapore. Indonesian peatlands store up to 57 billion tons of carbon, which makes it difficult to extinguish underground peat fires. One way to prevent wildfires is to map hotspots and burn areas to identify vulnerable regions. This study used hotspot data from VIIRS and burn area data from MODIS to analyze trends in Sumatra, the largest peatland area in Indonesia. The results showed that the number of hotspots and the size of burn areas in Riau were significantly higher than in other peatland regions. Riau consistently had the highest percentage of hotspots and burn areas, ranging from 6.26% to 90.70% for hotspots and 22.45% to 80.01% for burn areas.},
keywords = {hotspot, peatland},
pubstate = {published},
tppubtype = {conference}
}
Peatlands in Indonesia cover 10.8% of the country’s land area and are found in Kalimantan, Papua, and Sumatra. Peatlands store large amounts of water and help to prevent floods and droughts in surrounding areas. However, poor management of peatlands has led to frequent wildfires in Indonesia. In 2015, wildfires in Sumatra produced hazardous haze that affected the health of over 100,000 people in Indonesia, Malaysia, and Singapore. Indonesian peatlands store up to 57 billion tons of carbon, which makes it difficult to extinguish underground peat fires. One way to prevent wildfires is to map hotspots and burn areas to identify vulnerable regions. This study used hotspot data from VIIRS and burn area data from MODIS to analyze trends in Sumatra, the largest peatland area in Indonesia. The results showed that the number of hotspots and the size of burn areas in Riau were significantly higher than in other peatland regions. Riau consistently had the highest percentage of hotspots and burn areas, ranging from 6.26% to 90.70% for hotspots and 22.45% to 80.01% for burn areas. |
Pahlevi, Farhan R; Prasetyo, Lilik B; Priatna, Dolly Movement Patterns and Habitat Suitability of Translocated Sumatran Tigers (Panthera tigris sumatrae) Journal Article In: Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan, vol. 15, iss. 2, 2025, ISSN: 2460-5824. @article{nokey,
title = {Movement Patterns and Habitat Suitability of Translocated Sumatran Tigers (Panthera tigris sumatrae)},
author = {Farhan R Pahlevi and Lilik B Prasetyo and Dolly Priatna},
doi = {https://doi.org/10.29244/jpsl.15.2.313},
issn = {2460-5824},
year = {2025},
date = {2025-03-12},
journal = {Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan},
volume = {15},
issue = {2},
abstract = {Sumatran tigers (Panthera tigris sumatrae), critically endangered mammals native to Indonesia, play a vital role in maintaining ecosystem balance by regulating prey populations. However, habitat loss and human-wildlife conflict necessitate translocation as a conservation strategy. Translocation becomes an option when the conflict site is no longer possible as a tiger habitat, and the landscape changes from homogeneous to heterogeneous, causing changes in biodiversity that impact resource changes. Ecological studies on the aspects of space use and suitability characteristics of habitats by translocated tigers need to be conducted to improve survival. This study analyzed the home range and habitat suitability of translocated Sumatran tigers in Kerinci Seblat National Park (KSNP) using GPS collar data collected between June and September 2022. This research was conducted by developing a species distribution model using the Minimum Convex Polygon (MCP), fixed kernel (FK), and maximum entropy (Maxent) programs. The most active time used in moving by Sumatran tigers was in the morning of 06.00–08.59, MCP 492 km2, and FK 98.9 km2. The results of Maxent modelling obtained an average AUC value of 0.88, and the performance of this model was very good. The response shows how the prediction of the Sumatran Tiger's presence changes with each varying landscape value. The total edge contribution is dominant, with a proportion in this model of 35.5% and a Class area proportion of 27.5%.},
keywords = {habitat, tiger, wildlife},
pubstate = {published},
tppubtype = {article}
}
Sumatran tigers (Panthera tigris sumatrae), critically endangered mammals native to Indonesia, play a vital role in maintaining ecosystem balance by regulating prey populations. However, habitat loss and human-wildlife conflict necessitate translocation as a conservation strategy. Translocation becomes an option when the conflict site is no longer possible as a tiger habitat, and the landscape changes from homogeneous to heterogeneous, causing changes in biodiversity that impact resource changes. Ecological studies on the aspects of space use and suitability characteristics of habitats by translocated tigers need to be conducted to improve survival. This study analyzed the home range and habitat suitability of translocated Sumatran tigers in Kerinci Seblat National Park (KSNP) using GPS collar data collected between June and September 2022. This research was conducted by developing a species distribution model using the Minimum Convex Polygon (MCP), fixed kernel (FK), and maximum entropy (Maxent) programs. The most active time used in moving by Sumatran tigers was in the morning of 06.00–08.59, MCP 492 km2, and FK 98.9 km2. The results of Maxent modelling obtained an average AUC value of 0.88, and the performance of this model was very good. The response shows how the prediction of the Sumatran Tiger's presence changes with each varying landscape value. The total edge contribution is dominant, with a proportion in this model of 35.5% and a Class area proportion of 27.5%. |
Desantoro, Tri G; Prasetyo, Lilik B; Lubis, Muhammad I; Fandy, Muhammad Distribution and types of negative human-orangutan interactions in Kalimantan based on news articles Conference BIO Web of Conferences, vol. 162, 2025. @conference{nokey,
title = {Distribution and types of negative human-orangutan interactions in Kalimantan based on news articles},
author = {Tri G Desantoro and Lilik B Prasetyo and Muhammad I Lubis and Muhammad Fandy},
doi = {https://doi.org/10.1051/bioconf/202516200013},
year = {2025},
date = {2025-02-28},
booktitle = {BIO Web of Conferences},
volume = {162},
abstract = {Interaction between humans and orangutans can hurt both parties. Crop losses and heightened fear and anxiety among local communities due to orangutan presence often contribute to negative perceptions, which may influence actions towards these primates. Additionally, limited public awareness regarding the risks of keeping orangutans as pets can elevate the potential for zoonotic disease transmission. Habitat loss caused by deforestation and the conversion of forests to agricultural or anthropogenic-used land exacerbates the risk of human-orangutan encounters in Kalimantan. Consequently, understanding these interactions’ trends and spatial distribution is essential for devising strategic interventions to mitigate the conflict. Using web scraping methods, we collected article data from various Indonesian news sources from 2011 to 2024. 172 human and orangutan negative interactions were documented and categorized into six types: orangutan sightings, attacks, crop damage/raiding, hunting, capture, and orangutan rearing. These interactions occurred across 125 villages from 28 districts/cities in Kalimantan. Most incidents were reported in settlement areas (35%) and plantations (45%). Orangutans have also been sighted in public places, such as airports and harbors, over the past 5 years. Given the broad distribution of these interactions, coordinated efforts among multiple stakeholders are crucial for mitigating and managing human-orangutan conflicts as part of broader Bornean orangutan conservation initiatives.},
keywords = {orangutan},
pubstate = {published},
tppubtype = {conference}
}
Interaction between humans and orangutans can hurt both parties. Crop losses and heightened fear and anxiety among local communities due to orangutan presence often contribute to negative perceptions, which may influence actions towards these primates. Additionally, limited public awareness regarding the risks of keeping orangutans as pets can elevate the potential for zoonotic disease transmission. Habitat loss caused by deforestation and the conversion of forests to agricultural or anthropogenic-used land exacerbates the risk of human-orangutan encounters in Kalimantan. Consequently, understanding these interactions’ trends and spatial distribution is essential for devising strategic interventions to mitigate the conflict. Using web scraping methods, we collected article data from various Indonesian news sources from 2011 to 2024. 172 human and orangutan negative interactions were documented and categorized into six types: orangutan sightings, attacks, crop damage/raiding, hunting, capture, and orangutan rearing. These interactions occurred across 125 villages from 28 districts/cities in Kalimantan. Most incidents were reported in settlement areas (35%) and plantations (45%). Orangutans have also been sighted in public places, such as airports and harbors, over the past 5 years. Given the broad distribution of these interactions, coordinated efforts among multiple stakeholders are crucial for mitigating and managing human-orangutan conflicts as part of broader Bornean orangutan conservation initiatives. |
Hendriatna, Adis; Prasetyo, Lilik B; Kusrini, Mirza Dikari; Setiawan, Yudi Multi-sensor data utilization of unmanned aerial vehicle for wildlife monitoring in Komodo National Park Journal Article In: Ecological Engineering & Environmental Technology, vol. 26, iss. 3, pp. 315-329, 2025. @article{nokey,
title = {Multi-sensor data utilization of unmanned aerial vehicle for wildlife monitoring in Komodo National Park},
author = {Adis Hendriatna and Lilik B Prasetyo and Mirza Dikari Kusrini and Yudi Setiawan},
doi = {https://doi.org/10.12912/27197050/200185},
year = {2025},
date = {2025-02-01},
journal = {Ecological Engineering & Environmental Technology},
volume = {26},
issue = {3},
pages = {315-329},
abstract = {The use of unmanned aerial vehicles (UAVs) equipped with multispectral and thermal sensors provides a promising approach to wildlife monitoring, especially in the dynamic environment of Komodo National Park. This study explores the effectiveness of UAVs in tracking Komodo dragons and other wildlife using thermal imaging, which distinguishes animals based on body temperature contrasts with the surrounding environment. Thermal sensors detect wildlife more effectively in the afternoon, as animals like the Komodo dragon exhibit higher body temperatures compared to the cooler surroundings. Challenges, however, arise in the morning when animals body temperatures are closer to the environment, making them harder to detect. Factors such as fog, animal movement, and sensor limitations also impact detection accuracy. The study highlights the advantages of combining UAV thermal imaging with multispectral data to enhance monitoring accuracy. Despite the challenges, this method proves to be an efficient tool for wildlife management and conservation in remote, vast areas like Komodo National Park.},
keywords = {komodo, UAV},
pubstate = {published},
tppubtype = {article}
}
The use of unmanned aerial vehicles (UAVs) equipped with multispectral and thermal sensors provides a promising approach to wildlife monitoring, especially in the dynamic environment of Komodo National Park. This study explores the effectiveness of UAVs in tracking Komodo dragons and other wildlife using thermal imaging, which distinguishes animals based on body temperature contrasts with the surrounding environment. Thermal sensors detect wildlife more effectively in the afternoon, as animals like the Komodo dragon exhibit higher body temperatures compared to the cooler surroundings. Challenges, however, arise in the morning when animals body temperatures are closer to the environment, making them harder to detect. Factors such as fog, animal movement, and sensor limitations also impact detection accuracy. The study highlights the advantages of combining UAV thermal imaging with multispectral data to enhance monitoring accuracy. Despite the challenges, this method proves to be an efficient tool for wildlife management and conservation in remote, vast areas like Komodo National Park. |
Dröge, Saskia; Jusrin, Muhammad J M; Verbist, Bruno; Prasetyo, Lilik B; Maertens, Miet; Muys, Bart No effect of Rainforest Alliance cocoa certification on shade cover and bird species richness in Sulawesi, Indonesia Journal Article In: Journal of Nature Conservation, vol. 84, iss. March 2025, no. 126849, 2025. @article{nokey,
title = {No effect of Rainforest Alliance cocoa certification on shade cover and bird species richness in Sulawesi, Indonesia},
author = {Saskia Dröge and Muhammad J M Jusrin and Bruno Verbist and Lilik B Prasetyo and Miet Maertens and Bart Muys },
doi = {https://doi.org/10.1016/j.jnc.2025.126849},
year = {2025},
date = {2025-01-31},
journal = {Journal of Nature Conservation},
volume = {84},
number = {126849},
issue = {March 2025},
abstract = {Voluntary Sustainability Standards (VSS) and certification are promoted to enhance sustainable agricultural practices, but environmental outcomes of cocoa certification remain understudied. We selected 31 Rainforest Alliance (RA) certified and 31 non-certified cocoa plantations in Luwu Timur, Sulawesi, Indonesia, from a previous socioeconomic survey and assessed vegetation structure, soil fertility, as well as bird species richness. Using Wilcoxon Rank Sum tests, GLMMs and NMDS, we did not find certified plantations to have a higher shade tree diversity, shade tree basal area, and soil fertility. Bird species richness was significantly higher in certified plantations (p = 0.03), but the observed effect on bird species richness became statistically insignificant after controlling for elevation and plantation age in the GLMM. Current RA shade criteria are low, and potentially not sufficiently enforced, limiting RA potential to enhance biodiversity habitat. Certified farmers more frequently used improved farming techniques and received training; hence, certification might provide socioeconomic benefits to farmers while we found environmental outcomes of certification to be limited. Further research is needed to draw robust conclusions on VSS potential to enhance sustainable agriculture.
},
keywords = {agroforestry, species richness},
pubstate = {published},
tppubtype = {article}
}
Voluntary Sustainability Standards (VSS) and certification are promoted to enhance sustainable agricultural practices, but environmental outcomes of cocoa certification remain understudied. We selected 31 Rainforest Alliance (RA) certified and 31 non-certified cocoa plantations in Luwu Timur, Sulawesi, Indonesia, from a previous socioeconomic survey and assessed vegetation structure, soil fertility, as well as bird species richness. Using Wilcoxon Rank Sum tests, GLMMs and NMDS, we did not find certified plantations to have a higher shade tree diversity, shade tree basal area, and soil fertility. Bird species richness was significantly higher in certified plantations (p = 0.03), but the observed effect on bird species richness became statistically insignificant after controlling for elevation and plantation age in the GLMM. Current RA shade criteria are low, and potentially not sufficiently enforced, limiting RA potential to enhance biodiversity habitat. Certified farmers more frequently used improved farming techniques and received training; hence, certification might provide socioeconomic benefits to farmers while we found environmental outcomes of certification to be limited. Further research is needed to draw robust conclusions on VSS potential to enhance sustainable agriculture.
|
Fauziah,; Hayati, Nur; Prasetyo, Lilik B Simulation of Land Use and Land Cover of Peatland Bengkalis Using QGIS Journal Article In: JOIV : International Journal on Informatics Visualization , vol. 9, iss. 1, 2025. @article{nokey,
title = {Simulation of Land Use and Land Cover of Peatland Bengkalis Using QGIS},
author = {Fauziah and Nur Hayati and Lilik B Prasetyo},
doi = {http://dx.doi.org/10.62527/joiv.9.1.2432},
year = {2025},
date = {2025-01-31},
journal = {JOIV : International Journal on Informatics Visualization },
volume = {9},
issue = {1},
abstract = {The phenomenon of forest and peatland fires in Bengkalis Regency is inseparable from the change in land use and cover (LULC). The dynamic LULC in Bengkalis Regency is caused by economic factors sourced from land-based resource management. As a result, negative impacts such as environmental damage can trigger fires. Therefore, this study attempts to observe the LULC patterns on peatlands in the Bengkalis Regency using overlay techniques using QGIS. QGIS functions unlock the software's full potential, empowering you to manipulate data, automate workflows, create custom expressions, and perform advanced spatial analysis—all within a single platform. There are 12 LULC that can be identified on peatlands in Bengkalis Regency, including plantations (42.98%), primary forests (42.68%), shrubs (12.29%), residential and activity areas (0.71%), fields/farmlands (0.64%), lakes/ponds (0.43%), empty/bare land (0.18%), rivers (0.05%), and ponds, ponds, mangrove forests, and rice fields ranging from 0.004% to 0.008%. In addition, in the Bengkalis Regency, concession areas of at least 175,081.19 Ha are in the Peatland Ecosystem Protection Function (FLEG). LULC simulation provides a powerful tool for assessing the potential impact of various development plans and policies on society, the economy, and the environment, enabling more sustainable and responsible choices. A comprehensive understanding of land use and land-cover patterns is essential for further research on sustainable resource management and climate change mitigation. While LULC research has advanced significantly, several critical questions require further investigation},
keywords = {land use change},
pubstate = {published},
tppubtype = {article}
}
The phenomenon of forest and peatland fires in Bengkalis Regency is inseparable from the change in land use and cover (LULC). The dynamic LULC in Bengkalis Regency is caused by economic factors sourced from land-based resource management. As a result, negative impacts such as environmental damage can trigger fires. Therefore, this study attempts to observe the LULC patterns on peatlands in the Bengkalis Regency using overlay techniques using QGIS. QGIS functions unlock the software's full potential, empowering you to manipulate data, automate workflows, create custom expressions, and perform advanced spatial analysis—all within a single platform. There are 12 LULC that can be identified on peatlands in Bengkalis Regency, including plantations (42.98%), primary forests (42.68%), shrubs (12.29%), residential and activity areas (0.71%), fields/farmlands (0.64%), lakes/ponds (0.43%), empty/bare land (0.18%), rivers (0.05%), and ponds, ponds, mangrove forests, and rice fields ranging from 0.004% to 0.008%. In addition, in the Bengkalis Regency, concession areas of at least 175,081.19 Ha are in the Peatland Ecosystem Protection Function (FLEG). LULC simulation provides a powerful tool for assessing the potential impact of various development plans and policies on society, the economy, and the environment, enabling more sustainable and responsible choices. A comprehensive understanding of land use and land-cover patterns is essential for further research on sustainable resource management and climate change mitigation. While LULC research has advanced significantly, several critical questions require further investigation |
Wardani, Tiara P K; Prasetyo, Lilik B; Setiawan, Yudi Analysis of Land Use/Land Cover Changes 2005–2020 Jagorawi Highway Corridor Journal Article In: Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan, vol. 15, iss. 1, 2025, ISSN: 2460-5824. @article{nokey,
title = {Analysis of Land Use/Land Cover Changes 2005–2020 Jagorawi Highway Corridor},
author = {Tiara P K Wardani and Lilik B Prasetyo and Yudi Setiawan},
doi = {https://doi.org/10.29244/jpsl.15.1.134},
issn = {2460-5824},
year = {2025},
date = {2025-01-07},
journal = {Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan},
volume = {15},
issue = {1},
abstract = {Infrastructure development has both negative and positive impacts on the surrounding area. Economics growth, improved living standards, education levels, and easy access are the positive impacts of infrastructure development, meanwhile, it also has the consequences on the naturalresource use and environmental impacts from unsustainable consumption and socio-economic consequences for people around the developed areas. With the currently limited land, management needs to be addressed wisely in areas with high demand for land. Infrastructure can be a catalyst for land use change. This study aims to determine land use changes that occurred in 2005, 2010, & 2020 and analyze its driving factors. We used time series data from Landsat imagery taken from Landsat 5 TM (2005 & 2010) and Landsat 8 OLI/TIRS (2020). Visual analysis method was used to identify and classify the eight land use types per each period of Landsat image series. A simple overlay method was applied to determine the effect of the factors of distance from JT Jagorawi, from arterial collector roads, from GT Jagorawi, and from the government center; and population density. The results show that the built-up area increased from 29.72% in 2005, 32.03% in 2010 and 35.82% in 2020. The range distance that has a potential change in land cover is 4 km from JT Jagorawi & GT Jagorawi; 1 km distance from arterial and collector roads; 7.5 km distance from the government center with a population density of < 5,000 to 10,000 people km2. },
keywords = {land use change},
pubstate = {published},
tppubtype = {article}
}
Infrastructure development has both negative and positive impacts on the surrounding area. Economics growth, improved living standards, education levels, and easy access are the positive impacts of infrastructure development, meanwhile, it also has the consequences on the naturalresource use and environmental impacts from unsustainable consumption and socio-economic consequences for people around the developed areas. With the currently limited land, management needs to be addressed wisely in areas with high demand for land. Infrastructure can be a catalyst for land use change. This study aims to determine land use changes that occurred in 2005, 2010, & 2020 and analyze its driving factors. We used time series data from Landsat imagery taken from Landsat 5 TM (2005 & 2010) and Landsat 8 OLI/TIRS (2020). Visual analysis method was used to identify and classify the eight land use types per each period of Landsat image series. A simple overlay method was applied to determine the effect of the factors of distance from JT Jagorawi, from arterial collector roads, from GT Jagorawi, and from the government center; and population density. The results show that the built-up area increased from 29.72% in 2005, 32.03% in 2010 and 35.82% in 2020. The range distance that has a potential change in land cover is 4 km from JT Jagorawi & GT Jagorawi; 1 km distance from arterial and collector roads; 7.5 km distance from the government center with a population density of < 5,000 to 10,000 people km2. |
Meirani, Utami; Prasetyo, Lilik B; Mulyani, Yeni A; Syartinilia, Syartinilia; Higuchi, Horoyoshi Land-cover Dynamics and Oriental Honey-buzzard Winter Habitat Preference in Borneo, Indonesia Journal Article In: Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan, vol. 15, iss. 1, no. 2025, pp. 111, 2025. @article{nokey,
title = {Land-cover Dynamics and Oriental Honey-buzzard Winter Habitat Preference in Borneo, Indonesia},
author = {Utami Meirani and Lilik B Prasetyo and Yeni A Mulyani and Syartinilia Syartinilia and Horoyoshi Higuchi},
doi = {https://doi.org/10.29244/jpsl.15.1.111},
year = {2025},
date = {2025-01-07},
urldate = {2025-01-07},
journal = {Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan},
volume = {15},
number = {2025},
issue = {1},
pages = {111},
abstract = {Migration is part of an individual's behavioral adaptation to seasonal environmental changes. Migration can take advantage of organisms facing cyclical changes in limited resources. Borneo island is one of the wintering migration destinations for Oriental Honey-buzzard in Indonesia. The confluence of deforestation, industrialization, and urbanization has placed Kalimantan at a critical juncture. Borneo Island has led to the fragmentation habitat. ARGOS is a satellite tracking tool that has been used to monitor the movements and behavior of Oriental Honey-buzzards since 2003. Three individuals were investigated in this study to determine the response to land-cover changes that occurred in Borneo in 2003, 2006, and 2009. The ecological complexity and speciesenvironment connections that support Oriental Honey-buzzard responses are highlighted in this study. The analysis of responses suggests that Oriental Honey-buzzard was more commonly encountered in forested areas in Borneo than in 11 other land-cover areas during three years 2003, 2006, and 2009. Time duration spent in forested areas consistently exhibited the longest presence duration, with durations of 136.88 hours, 1,121.17 hours, and 1,160.53 hours in 2003, 2006, and 2009, respectively. The shortest duration of presence in mangrove and swamp areas was during 2003, 2006, and 2009.},
keywords = {land cover change},
pubstate = {published},
tppubtype = {article}
}
Migration is part of an individual's behavioral adaptation to seasonal environmental changes. Migration can take advantage of organisms facing cyclical changes in limited resources. Borneo island is one of the wintering migration destinations for Oriental Honey-buzzard in Indonesia. The confluence of deforestation, industrialization, and urbanization has placed Kalimantan at a critical juncture. Borneo Island has led to the fragmentation habitat. ARGOS is a satellite tracking tool that has been used to monitor the movements and behavior of Oriental Honey-buzzards since 2003. Three individuals were investigated in this study to determine the response to land-cover changes that occurred in Borneo in 2003, 2006, and 2009. The ecological complexity and speciesenvironment connections that support Oriental Honey-buzzard responses are highlighted in this study. The analysis of responses suggests that Oriental Honey-buzzard was more commonly encountered in forested areas in Borneo than in 11 other land-cover areas during three years 2003, 2006, and 2009. Time duration spent in forested areas consistently exhibited the longest presence duration, with durations of 136.88 hours, 1,121.17 hours, and 1,160.53 hours in 2003, 2006, and 2009, respectively. The shortest duration of presence in mangrove and swamp areas was during 2003, 2006, and 2009. |
2024
|
Wijayanto, Arif K; Prasetyo, Lilik B; Hudjimartsu, Sahid A; Hongo, Chiharu Advanced BLB disease assessment in paddy fields using multispectral UAV data and patch fragmentation metrics Journal Article In: Smart Agricultural Technology, vol. 10, iss. March 2025, 2024. @article{nokey,
title = {Advanced BLB disease assessment in paddy fields using multispectral UAV data and patch fragmentation metrics},
author = {Arif K Wijayanto and Lilik B Prasetyo and Sahid A Hudjimartsu and Chiharu Hongo},
url = {https://doi.org/10.1016/j.atech.2024.100766},
doi = {https://doi.org/10.1016/j.atech.2024.100766},
year = {2024},
date = {2024-12-30},
urldate = {2024-12-30},
journal = {Smart Agricultural Technology},
volume = {10},
issue = {March 2025},
abstract = {This study introduces an innovative method for assessing bacterial leaf blight (BLB) in paddy fields using multispectral UAV (Unmanned Aerial Vehicle) data and patch fragmentation analysis. Unlike traditional pixel-based approaches, which often lack spatial context, our method treats pixels as objects and evaluates their spatial relationships to determine BLB severity. Seven patch fragmentation metrics were derived from binarized vegetation indices to quantify BLB damage scores, carefully selected for their ability to describe the spatial arrangement and connectivity of potentially affected patches. This metric-driven approach captures the scale and intensity of BLB damage, facilitating precise assessment. The method demonstrated high accuracy, achieving an AUC of 0.938 with a 0.5-meter sampling window. This advancement enhances the precision of BLB damage assessment, particularly for applications such as crop insurance.},
keywords = {drone, patch fragmentation, rice},
pubstate = {published},
tppubtype = {article}
}
This study introduces an innovative method for assessing bacterial leaf blight (BLB) in paddy fields using multispectral UAV (Unmanned Aerial Vehicle) data and patch fragmentation analysis. Unlike traditional pixel-based approaches, which often lack spatial context, our method treats pixels as objects and evaluates their spatial relationships to determine BLB severity. Seven patch fragmentation metrics were derived from binarized vegetation indices to quantify BLB damage scores, carefully selected for their ability to describe the spatial arrangement and connectivity of potentially affected patches. This metric-driven approach captures the scale and intensity of BLB damage, facilitating precise assessment. The method demonstrated high accuracy, achieving an AUC of 0.938 with a 0.5-meter sampling window. This advancement enhances the precision of BLB damage assessment, particularly for applications such as crop insurance. |
Fauziah,; Prasetyo, Lilik B; Saribanon, Nonon; Hayati, Nur Vulnerability of peatland fires in bengkalis regency during the ENSO El nino phase using a machine learning approach Journal Article In: MethodsX, vol. 14, iss. June 2025, 2024. @article{nokey,
title = {Vulnerability of peatland fires in bengkalis regency during the ENSO El nino phase using a machine learning approach},
author = {Fauziah and Lilik B Prasetyo and Nonon Saribanon and Nur Hayati},
doi = {https://doi.org/10.1016/j.mex.2024.103128},
year = {2024},
date = {2024-12-20},
journal = {MethodsX},
volume = {14},
issue = {June 2025},
abstract = {Peatland fires are increasingly becoming a concern as a recurring environmental issue in Indonesia, particularly along the east coast of Sumatra Island, in Bengkalis Regency. Therefore, the development of a peatland fire prediction model is necessary. This study aims to identify peatland fire vulnerability in Bengkalis Regency using burn area from MODIS 2019. The algorithm used are Random Forest (RF) and Logistic Regression (Log-Reg), with independent variables including physiography, peat physical characteristics, anthropogenic factors, climate, and NDMI. The total burned area in Bengkalis Regency in 2019 was 175.85 km², with Rupat District being the area with the largest burned area. The best model is RF that was able to predict peatland fires in Bengkalis Regency effectively, with achieving an AUC value of 0.972. The five main factors influencing peatland fires were road density, precipitation, drainage density, NDMI, and river density. The accuracy of RF reached 95.07%. The classification results indicated three levels of peatland fire vulnerability in Bengkalis Regency
• Non-Vulnerable: Areas classified as non-vulnerable are regions where the risk of peatland fires is minimal or non-existent.
• Low Vulnerability: These areas have a moderate risk of peatland fires.
• High Vulnerability: Areas with high vulnerability are the most susceptible to peatland fires.},
keywords = {ENSO, peatland},
pubstate = {published},
tppubtype = {article}
}
Peatland fires are increasingly becoming a concern as a recurring environmental issue in Indonesia, particularly along the east coast of Sumatra Island, in Bengkalis Regency. Therefore, the development of a peatland fire prediction model is necessary. This study aims to identify peatland fire vulnerability in Bengkalis Regency using burn area from MODIS 2019. The algorithm used are Random Forest (RF) and Logistic Regression (Log-Reg), with independent variables including physiography, peat physical characteristics, anthropogenic factors, climate, and NDMI. The total burned area in Bengkalis Regency in 2019 was 175.85 km², with Rupat District being the area with the largest burned area. The best model is RF that was able to predict peatland fires in Bengkalis Regency effectively, with achieving an AUC value of 0.972. The five main factors influencing peatland fires were road density, precipitation, drainage density, NDMI, and river density. The accuracy of RF reached 95.07%. The classification results indicated three levels of peatland fire vulnerability in Bengkalis Regency
• Non-Vulnerable: Areas classified as non-vulnerable are regions where the risk of peatland fires is minimal or non-existent.
• Low Vulnerability: These areas have a moderate risk of peatland fires.
• High Vulnerability: Areas with high vulnerability are the most susceptible to peatland fires. |
Rahmila, Yulizar I; Prasetyo, Lilik B; Kusmana, Cecep; Suyadi,; Basyuni, Mohammad; Pranoto, Bono; Rahmania, Rinny; Halwany, Wawan; Faubiany, Varenna; Susantoro, Tri M; Winarso, Gatot; Efiyanti, Lisna; Indrawan, Dian A Spatial analysis of mangrove ecosystem dynamics in Banyuwangi: a geographically weighted regression approach Journal Article In: Forest Science and Technology, vol. 21, iss. 1, pp. 38-50, 2024. @article{nokey,
title = {Spatial analysis of mangrove ecosystem dynamics in Banyuwangi: a geographically weighted regression approach},
author = {Yulizar I Rahmila and Lilik B Prasetyo and Cecep Kusmana and Suyadi and Mohammad Basyuni and Bono Pranoto and Rinny Rahmania and Wawan Halwany and Varenna Faubiany and Tri M Susantoro and Gatot Winarso and Lisna Efiyanti and Dian A Indrawan},
url = {https://doi.org/10.1080/21580103.2024.2438602},
doi = {https://doi.org/10.1080/21580103.2024.2438602},
year = {2024},
date = {2024-12-20},
journal = {Forest Science and Technology},
volume = {21},
issue = {1},
pages = {38-50},
abstract = {This study examines the dynamics of mangrove land change in Banyuwangi, East Java, employing Geographically Weighted Regression (GWR) to investigate the spatial variability in the drivers of mangrove deforestation. Our analysis identifies significant anthropogenic and natural elements that influence mangrove ecosystems, with findings indicating considerable variability in mangrove growth predictions across the region, ranging from approximately 0.10 to 18.67. The mean predicted growth rate is 3.68, with local R-squared values varying from 0.003 to 0.547, highlighting the model’s differential explanatory power across diverse locales. The results underscore the complex interplay between environmental conditions and human activities, revealing that proximity to agricultural areas, urban development, and infrastructure significantly impact mangrove deforestation rates. This study advocates for implementing spatially tailored conservation strategies that accommodate local ecological dynamics and anthropogenic pressures. By enhancing our understanding of these localized influences, our research supports more effective policy-making and land management practices to sustain mangrove ecosystems, which are vital for biodiversity, coastal protection, and carbon sequestration.},
keywords = {mangrove},
pubstate = {published},
tppubtype = {article}
}
This study examines the dynamics of mangrove land change in Banyuwangi, East Java, employing Geographically Weighted Regression (GWR) to investigate the spatial variability in the drivers of mangrove deforestation. Our analysis identifies significant anthropogenic and natural elements that influence mangrove ecosystems, with findings indicating considerable variability in mangrove growth predictions across the region, ranging from approximately 0.10 to 18.67. The mean predicted growth rate is 3.68, with local R-squared values varying from 0.003 to 0.547, highlighting the model’s differential explanatory power across diverse locales. The results underscore the complex interplay between environmental conditions and human activities, revealing that proximity to agricultural areas, urban development, and infrastructure significantly impact mangrove deforestation rates. This study advocates for implementing spatially tailored conservation strategies that accommodate local ecological dynamics and anthropogenic pressures. By enhancing our understanding of these localized influences, our research supports more effective policy-making and land management practices to sustain mangrove ecosystems, which are vital for biodiversity, coastal protection, and carbon sequestration. |
Dröge, Saskia; Prasetyo, Lilik B; Muys, Bart Acoustic indices as proxies for biodiversity in certified and non-certified cocoa plantations in Indonesia Bachelor Thesis 2024. @bachelorthesis{nokey,
title = {Acoustic indices as proxies for biodiversity in certified and non-certified cocoa plantations in Indonesia},
author = {Saskia Dröge and Lilik B Prasetyo and Bart Muys},
doi = {https://doi.org/10.1007/s10661-024-13441-0},
year = {2024},
date = {2024-12-16},
journal = {Environmental Monitoring and Assessment},
volume = {197},
abstract = {Acoustic indices allow time efficient analysis of large acoustic datasets obtained from passive acoustic monitoring, but results regarding their effectiveness in assessing biodiversity are inconsistent. We evaluated the efficacy of six acoustic indices (ACI, ADI, AEI, H, BI, NDSI) for studying bird and structural diversity in 51 cocoa plantations, 24 of which were certified by Rainforest Alliance, in Luwu Timur, Sulawesi, Indonesia. We used linear models to assess the correlation of index values with bird species richness, and linear mixed models to test the influence of canopy closure, shade tree basal area, distance to primary forest and tree cover in a 200-m buffer on index values. Bird species richness was positively correlated with BI (p = 0.02) and negatively with H (p = 0.03), yet predictive power was low (R2 = 0.10 and 0.09, respectively). Acoustic indices did not differ significantly for certified cocoa plantations. Tree cover within the 200-m buffer moderately well predicted ACI values (marginal R2 = 0.37) while for the other indices effect sizes were low or correlations were not significant. Comparing our results to other studies, acoustic indices may reflect biodiversity across land uses, but were of limited value for tracking subtle differences in cocoa plantations in Sulawesi. Future studies may include more land uses (i.e. rice paddies, secondary forest, oil palm) as well as more taxa (i.e. insects). More research is needed on the comparability of acoustic indices, as we found them to be influenced by recording equipment and calculation settings.},
keywords = {acoustic, agroforestry},
pubstate = {published},
tppubtype = {bachelorthesis}
}
Acoustic indices allow time efficient analysis of large acoustic datasets obtained from passive acoustic monitoring, but results regarding their effectiveness in assessing biodiversity are inconsistent. We evaluated the efficacy of six acoustic indices (ACI, ADI, AEI, H, BI, NDSI) for studying bird and structural diversity in 51 cocoa plantations, 24 of which were certified by Rainforest Alliance, in Luwu Timur, Sulawesi, Indonesia. We used linear models to assess the correlation of index values with bird species richness, and linear mixed models to test the influence of canopy closure, shade tree basal area, distance to primary forest and tree cover in a 200-m buffer on index values. Bird species richness was positively correlated with BI (p = 0.02) and negatively with H (p = 0.03), yet predictive power was low (R2 = 0.10 and 0.09, respectively). Acoustic indices did not differ significantly for certified cocoa plantations. Tree cover within the 200-m buffer moderately well predicted ACI values (marginal R2 = 0.37) while for the other indices effect sizes were low or correlations were not significant. Comparing our results to other studies, acoustic indices may reflect biodiversity across land uses, but were of limited value for tracking subtle differences in cocoa plantations in Sulawesi. Future studies may include more land uses (i.e. rice paddies, secondary forest, oil palm) as well as more taxa (i.e. insects). More research is needed on the comparability of acoustic indices, as we found them to be influenced by recording equipment and calculation settings. |
Dröge, Saskia; Bemelmans, Janne; Depoorter, Charline; Jusrin, Muhammad J M; Marx, Axel; Verbist, Brono; Prasetyo, Lilik B; Maertens, Miet; Muys, Bart From chocolate to palm oil: The future of Indonesia’s cocoa plantations Journal Article In: Ambio, vol. 54, pp. 151-161, 2024. @article{nokey,
title = {From chocolate to palm oil: The future of Indonesia’s cocoa plantations},
author = {Saskia Dröge and Janne Bemelmans and Charline Depoorter and Muhammad J M Jusrin and Axel Marx and Brono Verbist and Lilik B Prasetyo and Miet Maertens and Bart Muys},
doi = {https://doi.org/10.1007/s13280-024-02061-0},
year = {2024},
date = {2024-08-02},
journal = {Ambio},
volume = {54},
pages = {151-161},
abstract = {Indonesia is the world’s third largest cocoa producer, but production is decreasing since 2011. We revisited cocoa farmers for an environmental assessment in Luwu Timur, Sulawesi, 7 months after a socio-economic survey on cocoa certification outcomes and observed many cocoa plantations being converted into oil palm and maize. Including our field data as well as secondary data on commodity prices and yields, we outline reasons for cocoa conversion, potential consequences for biodiversity, and assess the future outlook for the Indonesian cocoa sector. Low cocoa productivity, volatile cocoa prices and higher revenue for oil palm, among others, drive land-use change. If shade trees are cut during cocoa conversion, it may have negative implications for biodiversity. Solutions to low soil fertility, omnipresent pests and diseases, and stable producer prices are needed to increase profitability of cocoa and prevent conversion of cocoa agroforests to oil palm monocultures.},
keywords = {agroforestry},
pubstate = {published},
tppubtype = {article}
}
Indonesia is the world’s third largest cocoa producer, but production is decreasing since 2011. We revisited cocoa farmers for an environmental assessment in Luwu Timur, Sulawesi, 7 months after a socio-economic survey on cocoa certification outcomes and observed many cocoa plantations being converted into oil palm and maize. Including our field data as well as secondary data on commodity prices and yields, we outline reasons for cocoa conversion, potential consequences for biodiversity, and assess the future outlook for the Indonesian cocoa sector. Low cocoa productivity, volatile cocoa prices and higher revenue for oil palm, among others, drive land-use change. If shade trees are cut during cocoa conversion, it may have negative implications for biodiversity. Solutions to low soil fertility, omnipresent pests and diseases, and stable producer prices are needed to increase profitability of cocoa and prevent conversion of cocoa agroforests to oil palm monocultures. |
Andryan, Ricky; Junaedi, Ahmad; Purwono,; Prasetyo, Lilik B; Nurrahma, Arinal H I Optimizing cultivation system and pest management in different types of rice varieties Journal Article In: Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy), vol. 52, no. 2, pp. 176-186, 2024. @article{Andryan_Junaedi_Purwono_Prasetyo_IzzawatiNurrahma_2024,
title = {Optimizing cultivation system and pest management in different types of rice varieties},
author = {Ricky Andryan and Ahmad Junaedi and Purwono and Lilik B Prasetyo and Arinal H I Nurrahma},
url = {https://journal.ipb.ac.id/index.php/jurnalagronomi/article/view/54078},
doi = {https://10.24831/jai.v52i2.54078},
year = {2024},
date = {2024-08-01},
urldate = {2024-08-01},
journal = {Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)},
volume = {52},
number = {2},
pages = {176-186},
abstract = {Improving rice productivity and efficiency is the main goal of cultivation techniques to meet the demand for rice production. The aim of this research was to evaluate the suitability of rice varieties in cultivation systems, namely: organic cultivation + biological pest management (BPM), inorganic cultivation + BPM, and conventional cultivation. Different types of rice varieties, namely New Superior Varieties (NSV: INPARI-30, INPARI-32), New Plant Type (NPT: IPB-3S), and Superior Varieties from West Sumatra (Batang Piaman, Anak Daro), may exhibit differences in agronomic performance across various cultivation systems. This research was conducted at the Sawah Baru Babakan Experimental Farm, IPB University, Dramaga Bogor, using a factorial nested design with 4 replications. The results based on yield per hill and plot showed that Batang Piaman and INPARI-30 varieties were suitable for all organic + BPM, inorganic + BPM, and conventional cultivational systems. The INPARI-32 and IPB-3S varieties were more suitable for conventional cultivation and inorganic + BPM; while the Anak Daro variety was better in organic cultivation + BPM. Utilizing varieties with different characteristics for better yield performance could be considered with obtaining the suitability of the cultivation system, whether organic + BPM, inorganic + BPM, or conventional.},
keywords = {paddy, pest management, rice},
pubstate = {published},
tppubtype = {article}
}
Improving rice productivity and efficiency is the main goal of cultivation techniques to meet the demand for rice production. The aim of this research was to evaluate the suitability of rice varieties in cultivation systems, namely: organic cultivation + biological pest management (BPM), inorganic cultivation + BPM, and conventional cultivation. Different types of rice varieties, namely New Superior Varieties (NSV: INPARI-30, INPARI-32), New Plant Type (NPT: IPB-3S), and Superior Varieties from West Sumatra (Batang Piaman, Anak Daro), may exhibit differences in agronomic performance across various cultivation systems. This research was conducted at the Sawah Baru Babakan Experimental Farm, IPB University, Dramaga Bogor, using a factorial nested design with 4 replications. The results based on yield per hill and plot showed that Batang Piaman and INPARI-30 varieties were suitable for all organic + BPM, inorganic + BPM, and conventional cultivational systems. The INPARI-32 and IPB-3S varieties were more suitable for conventional cultivation and inorganic + BPM; while the Anak Daro variety was better in organic cultivation + BPM. Utilizing varieties with different characteristics for better yield performance could be considered with obtaining the suitability of the cultivation system, whether organic + BPM, inorganic + BPM, or conventional. |
Wijayanto, Arif K; Prasetyo, Lilik B; Hudjimartsu, Sahid A; Hongo, Chiharu Textural features for BLB disease damage assessment in paddy fields using drone data and machine learning: Enhancing disease detection accuracy Journal Article In: Smart Agricultural Technology, vol. 8, iss. August 2024, 2024. @article{nokey,
title = {Textural features for BLB disease damage assessment in paddy fields using drone data and machine learning: Enhancing disease detection accuracy},
author = {Arif K Wijayanto and Lilik B Prasetyo and Sahid A Hudjimartsu and Chiharu Hongo},
url = {https://doi.org/10.1016/j.atech.2024.100498},
doi = {10.1016/j.atech.2024.100498},
year = {2024},
date = {2024-06-28},
urldate = {2024-06-28},
journal = {Smart Agricultural Technology},
volume = {8},
issue = {August 2024},
abstract = {Detecting Bacterial Leaf Blight (BLB) in paddy fields is a critical challenge in Indonesia, where the disease poses a significant threat to rice production by reducing the photosynthetic ability and ultimately compromising plant productivity. This study explored the effectiveness of using drone-acquired data for textural analysis in paddy fields in West Java, with the aim of improving BLB detection by integrating textural and thermal characteristics. Utilizing advanced machine learning techniques, we combined drone data to assess different levels of damage caused by BLB. The normalized difference texture index, derived from the Haralick textural features, was employed as a key predictor. Our findings demonstrate that the inclusion of textural features markedly enhances disease detection accuracy compared with traditional methods based solely on spectral indices. Specifically, the random forest algorithm, which integrates texture and vegetation indices, achieved an impressive classification accuracy of 0.984. This innovative approach offers a robust, non-invasive solution for detecting BLB, significantly contributing to the protection of crop yields and addressing global food security challenges. This study underscores the potential of advanced remote sensing technologies and machine learning to revolutionize agricultural disease management.},
keywords = {drone, haralick, paddy, rice, textural feature},
pubstate = {published},
tppubtype = {article}
}
Detecting Bacterial Leaf Blight (BLB) in paddy fields is a critical challenge in Indonesia, where the disease poses a significant threat to rice production by reducing the photosynthetic ability and ultimately compromising plant productivity. This study explored the effectiveness of using drone-acquired data for textural analysis in paddy fields in West Java, with the aim of improving BLB detection by integrating textural and thermal characteristics. Utilizing advanced machine learning techniques, we combined drone data to assess different levels of damage caused by BLB. The normalized difference texture index, derived from the Haralick textural features, was employed as a key predictor. Our findings demonstrate that the inclusion of textural features markedly enhances disease detection accuracy compared with traditional methods based solely on spectral indices. Specifically, the random forest algorithm, which integrates texture and vegetation indices, achieved an impressive classification accuracy of 0.984. This innovative approach offers a robust, non-invasive solution for detecting BLB, significantly contributing to the protection of crop yields and addressing global food security challenges. This study underscores the potential of advanced remote sensing technologies and machine learning to revolutionize agricultural disease management. |
2023
|
Wijayanto, Arif K; Junaedi, Ahmad; Sujaswara, Azwar A; Khamid, Miftakhul B. R.; Prasetyo, Lilik B; Hongo, Chiharu; Kuze, Hiroaki Machine Learning for Precise Rice Variety Classification in Tropical Environments Using UAV-Based Multispectral Sensing Journal Article In: AgriEngineering, vol. 5, pp. 2000-2019, 2023, ISSN: 2624-7402. @article{nokey,
title = {Machine Learning for Precise Rice Variety Classification in Tropical Environments Using UAV-Based Multispectral Sensing},
author = {Arif K Wijayanto and Ahmad Junaedi and Azwar A Sujaswara and Miftakhul B.R. Khamid and Lilik B Prasetyo and Chiharu Hongo and Hiroaki Kuze},
url = {http://algm.ipb.ac.id/wp-content/uploads/2025/02/agriengineering-05-00123.pdf},
doi = {10.3390/agriengineering5040123},
issn = {2624-7402},
year = {2023},
date = {2023-11-01},
urldate = {2023-11-01},
journal = {AgriEngineering},
volume = {5},
pages = {2000-2019},
abstract = {An efficient assessment of rice varieties in tropical regions is crucial for selecting cultivars suited to unique environmental conditions. This study explores machine learning algorithms that leverage multispectral sensor data from UAVs to evaluate rice varieties. It focuses on three paddy rice types at different ages (six, nine, and twelve weeks after planting), analyzing data from four spectral bands and vegetation indices using various algorithms for classification. The results show that the neural network (NN) algorithm is superior, achieving an area under the curve value of 0.804. The twelfth week post-planting yielded the most accurate results, with green reflectance the dominant predictor, surpassing the traditional vegetation indices. This study demonstrates the rapid and effective classification of rice varieties using UAV-based multispectral sensors and NN algorithms to enhance agricultural practices and global food security.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
An efficient assessment of rice varieties in tropical regions is crucial for selecting cultivars suited to unique environmental conditions. This study explores machine learning algorithms that leverage multispectral sensor data from UAVs to evaluate rice varieties. It focuses on three paddy rice types at different ages (six, nine, and twelve weeks after planting), analyzing data from four spectral bands and vegetation indices using various algorithms for classification. The results show that the neural network (NN) algorithm is superior, achieving an area under the curve value of 0.804. The twelfth week post-planting yielded the most accurate results, with green reflectance the dominant predictor, surpassing the traditional vegetation indices. This study demonstrates the rapid and effective classification of rice varieties using UAV-based multispectral sensors and NN algorithms to enhance agricultural practices and global food security. |
Fauzia, A. M.; Kusrini, Mirza D.; Prasetyo, Lilik B Citizen science contribution in herpetofauna data collection in Java Journal Article In: IOP Conference Series: Earth and Environmental Science, vol. 1271, no. 1, 2023, ISSN: 17551315. @article{Fauzia2023,
title = {Citizen science contribution in herpetofauna data collection in Java},
author = {A. M. Fauzia and Mirza D. Kusrini and Lilik B Prasetyo},
doi = {10.1088/1755-1315/1271/1/012046},
issn = {17551315},
year = {2023},
date = {2023-01-01},
urldate = {2023-01-01},
journal = {IOP Conference Series: Earth and Environmental Science},
volume = {1271},
number = {1},
abstract = {Biodiversity distribution data is essential as it is the basis for policies, development plans, and laws. Citizen science, which involves public participation in scientific research, has become a popular method for researchers to gather scientific data with the help of volunteers, including biodiversity distribution data. "Amfibi Reptil Kita"(ARK) is one of the citizen science projects on the iNaturalist platform that collects herpetofauna data in Indonesia. Earlier investigations into the distribution of herpetofauna data in Java and Bali involved utilizing museum collections and reports based on observations and research. A comparative analysis was performed between previous research data and information sourced from ARK, aiming to evaluate the extent of citizen science's contribution to data compilation. This study only compares the distribution data on the island of Java. The data is presented in a grid format measuring 5x5 km as the smallest unit in the study. Citizen science data is more evenly distributed than the previous research. Although previous research had more filled grids compared to citizen science, the span of previous research is 113 years compared to 5 years data of citizen science. Nevertheless, citizen science, with all its conveniences, has high potential in collecting biodiversity distribution data.},
keywords = {amphibia, ARK, distribution, iNaturalist, reptiles},
pubstate = {published},
tppubtype = {article}
}
Biodiversity distribution data is essential as it is the basis for policies, development plans, and laws. Citizen science, which involves public participation in scientific research, has become a popular method for researchers to gather scientific data with the help of volunteers, including biodiversity distribution data. "Amfibi Reptil Kita"(ARK) is one of the citizen science projects on the iNaturalist platform that collects herpetofauna data in Indonesia. Earlier investigations into the distribution of herpetofauna data in Java and Bali involved utilizing museum collections and reports based on observations and research. A comparative analysis was performed between previous research data and information sourced from ARK, aiming to evaluate the extent of citizen science's contribution to data compilation. This study only compares the distribution data on the island of Java. The data is presented in a grid format measuring 5x5 km as the smallest unit in the study. Citizen science data is more evenly distributed than the previous research. Although previous research had more filled grids compared to citizen science, the span of previous research is 113 years compared to 5 years data of citizen science. Nevertheless, citizen science, with all its conveniences, has high potential in collecting biodiversity distribution data. |
2022
|
Condro, Aryo Adhi; Prasetyo, Lilik B; Rushayati, Siti Badriyah; Santikayasa, I Putu; Iskandar, Entang Protected areas slow down tropical rainforest disturbance in the Leuser Ecosystem, Indonesia Journal Article In: Journal of Land Use Science, vol. 17, no. 1, pp. 454-470, 2022. @article{Condro2022,
title = {Protected areas slow down tropical rainforest disturbance in the Leuser Ecosystem, Indonesia},
author = {Aryo Adhi Condro and Lilik B Prasetyo and Siti Badriyah Rushayati and I Putu Santikayasa and Entang Iskandar},
url = {https://www.tandfonline.com/doi/full/10.1080/1747423X.2022.2115571https://algm.ipb.ac.id/wp-content/uploads/2022/08/Protected-areas-slow-down-tropical-rainforest-disturbance-in-the-Leuser-Ecosystem-Indonesia.pdf},
doi = {10.1080/1747423X.2022.2115571},
year = {2022},
date = {2022-08-25},
journal = {Journal of Land Use Science},
volume = {17},
number = {1},
pages = {454-470},
abstract = {Tropical rainforest ecosystems that function as biodiversity pools had been undermined because of anthropogenic activities. Research has shown that protected areas (PAs) have become the first safeguard for biodiversity. However, how to measure the effectiveness of PAs remains unclear. We present spatiotemporal changes within the PAs and non-PAs in the Leuser Ecosystem, which is one of the significant global landscapes, using intensity analysis during two time periods and propensity score matching to investigate the effectiveness of PAs. We classified land cover using machine learning based on remotely sensed data. Our results revealed the effectiveness of PAs compared with non-PAs. The new conservation intervention after 2008 resulted in the deacceleration of deforestation from 2000–2010 to 2010–2020. In addition, PAs can reduce deforestation two times more effectively than non-PAs. Therefore, PAs and good governance within the Leuser Ecosystem are crucial in maintaining the natural ecosystem to address global conservation targets.},
keywords = {leuser, rainforest},
pubstate = {published},
tppubtype = {article}
}
Tropical rainforest ecosystems that function as biodiversity pools had been undermined because of anthropogenic activities. Research has shown that protected areas (PAs) have become the first safeguard for biodiversity. However, how to measure the effectiveness of PAs remains unclear. We present spatiotemporal changes within the PAs and non-PAs in the Leuser Ecosystem, which is one of the significant global landscapes, using intensity analysis during two time periods and propensity score matching to investigate the effectiveness of PAs. We classified land cover using machine learning based on remotely sensed data. Our results revealed the effectiveness of PAs compared with non-PAs. The new conservation intervention after 2008 resulted in the deacceleration of deforestation from 2000–2010 to 2010–2020. In addition, PAs can reduce deforestation two times more effectively than non-PAs. Therefore, PAs and good governance within the Leuser Ecosystem are crucial in maintaining the natural ecosystem to address global conservation targets. |
Adinugroho, Wahyu Catur; Prasetyo, Lilik B; Kusmana, Cecep; Krisnawati, Haruni; Weston, Christopher J.; Volkova, Liubov Recovery of Carbon and Vegetation Diversity 23 Years after Fire in a Tropical Dryland Forest of Indonesia Journal Article In: Sustainability, vol. 14, no. 12, 2022. @article{Adinugroho2022,
title = {Recovery of Carbon and Vegetation Diversity 23 Years after Fire in a Tropical Dryland Forest of Indonesia},
author = {Wahyu Catur Adinugroho and Lilik B Prasetyo and Cecep Kusmana and Haruni Krisnawati and Christopher J. Weston and Liubov Volkova},
url = {https://www.mdpi.com/2071-1050/14/12/6964/htm},
doi = {10.3390/su14126964},
year = {2022},
date = {2022-06-07},
journal = {Sustainability},
volume = {14},
number = {12},
abstract = {Understanding the recovery rate of forest carbon stocks and biodiversity after disturbance, including fire, is vital for developing effective climate-change-mitigation policies and actions. In this study, live and dead carbon stocks aboveground, belowground, and in the soil to a 30 cm depth, as well as tree and shrub species diversity, were measured in a tropical lowland dry forest, 23 years after a fire in 1998, for comparison with adjacent unburned reference forests. The results showed that 23 years since the fire was insufficient, in this case, to recover live forest carbon and plant species diversity, to the level of the reference forests. The total carbon stock, in the recovering 23-year-old forest, was 199 Mg C ha−1 or about 90% of the unburned forest (220 Mg C ha−1), mainly due to the contribution of coarse woody debris and an increase in the 5–10 cm soil horizon’s organic carbon, in the burned forest. The carbon held in the live biomass of the recovering forest (79 Mg C ha−1) was just over half the 146 Mg C ha−1 of the reference forest. Based on a biomass mean annual increment of 6.24 ± 1.59 Mg ha−1 yr−1, about 46 ± 17 years would be required for the aboveground live biomass to recover to equivalence with the reference forest. In total, 176 plant species were recorded in the 23-year post-fire forest, compared with 216 in the unburned reference forest. The pioneer species Macaranga gigantea dominated in the 23-year post-fire forest, which was yet to regain the similar stand structural and compositional elements as those found in the adjacent unburned reference forest.},
keywords = {carbon, dryland},
pubstate = {published},
tppubtype = {article}
}
Understanding the recovery rate of forest carbon stocks and biodiversity after disturbance, including fire, is vital for developing effective climate-change-mitigation policies and actions. In this study, live and dead carbon stocks aboveground, belowground, and in the soil to a 30 cm depth, as well as tree and shrub species diversity, were measured in a tropical lowland dry forest, 23 years after a fire in 1998, for comparison with adjacent unburned reference forests. The results showed that 23 years since the fire was insufficient, in this case, to recover live forest carbon and plant species diversity, to the level of the reference forests. The total carbon stock, in the recovering 23-year-old forest, was 199 Mg C ha−1 or about 90% of the unburned forest (220 Mg C ha−1), mainly due to the contribution of coarse woody debris and an increase in the 5–10 cm soil horizon’s organic carbon, in the burned forest. The carbon held in the live biomass of the recovering forest (79 Mg C ha−1) was just over half the 146 Mg C ha−1 of the reference forest. Based on a biomass mean annual increment of 6.24 ± 1.59 Mg ha−1 yr−1, about 46 ± 17 years would be required for the aboveground live biomass to recover to equivalence with the reference forest. In total, 176 plant species were recorded in the 23-year post-fire forest, compared with 216 in the unburned reference forest. The pioneer species Macaranga gigantea dominated in the 23-year post-fire forest, which was yet to regain the similar stand structural and compositional elements as those found in the adjacent unburned reference forest. |
Prasetyo, Lilik B; Setiawan, Yudi; Condro, Aryo Adhi; Kustiyo,; Putra, Eriyanto Indra; Hayati, Nur; Wijayanto, Arif K; Ramadhi, Almi; Murdiyarso, Daniel Assessing Sumatran Peat Vulnerability to Fire under Various Condition of ENSO Phases Using Machine Learning Approaches Journal Article In: Forests, vol. 13, no. 6, 2022. @article{Prasetyo2022,
title = {Assessing Sumatran Peat Vulnerability to Fire under Various Condition of ENSO Phases Using Machine Learning Approaches},
author = {Lilik B Prasetyo and Yudi Setiawan and Aryo Adhi Condro and Kustiyo and Eriyanto Indra Putra and Nur Hayati and Arif K Wijayanto and Almi Ramadhi and Daniel Murdiyarso},
url = {https://www.mdpi.com/1999-4907/13/6/828},
doi = {10.3390/f13060828},
year = {2022},
date = {2022-05-25},
journal = {Forests},
volume = {13},
number = {6},
abstract = {In recent decades, catastrophic wildfire episodes within the Sumatran peatland have contributed to a large amount of greenhouse gas emissions. The El-Nino Southern Oscillation (ENSO) modulates the occurrence of fires in Indonesia through prolonged hydrological drought. Thus, assessing peatland vulnerability to fires and understanding the underlying drivers are essential to developing adaptation and mitigation strategies for peatland. Here, we quantify the vulnerability of Sumatran peat to fires under various ENSO conditions (i.e., El-Nino, La-Nina, and Normal phases) using correlative modelling approaches. This study used climatic (i.e., annual precipitation, SPI, and KBDI), biophysical (i.e., below-ground biomass, elevation, slope, and NBR), and proxies to anthropogenic disturbance variables (i.e., access to road, access to forests, access to cities, human modification, and human population) to assess fire vulnerability within Sumatran peatlands. We created an ensemble model based on various machine learning approaches (i.e., random forest, support vector machine, maximum entropy, and boosted regression tree). We found that the ensemble model performed better compared to a single algorithm for depicting fire vulnerability within Sumatran peatlands. The NBR highly contributed to the vulnerability of peatland to fire in Sumatra in all ENSO phases, followed by the anthropogenic variables. We found that the high to very-high peat vulnerability to fire increases during El-Nino conditions with variations in its spatial patterns occurring under different ENSO phases. This study provides spatially explicit information to support the management of peat fires, which will be particularly useful for identifying peatland restoration priorities based on peatland vulnerability to fire maps. Our findings highlight Riau’s peatland as being the area most prone to fires area on Sumatra Island. Therefore, the groundwater level within this area should be intensively monitored to prevent peatland fires. In addition, conserving intact forests within peatland through the moratorium strategy and restoring the degraded peatland ecosystem through canal blocking is also crucial to coping with global climate change.},
keywords = {ENSO, fire, land fire, peat land},
pubstate = {published},
tppubtype = {article}
}
In recent decades, catastrophic wildfire episodes within the Sumatran peatland have contributed to a large amount of greenhouse gas emissions. The El-Nino Southern Oscillation (ENSO) modulates the occurrence of fires in Indonesia through prolonged hydrological drought. Thus, assessing peatland vulnerability to fires and understanding the underlying drivers are essential to developing adaptation and mitigation strategies for peatland. Here, we quantify the vulnerability of Sumatran peat to fires under various ENSO conditions (i.e., El-Nino, La-Nina, and Normal phases) using correlative modelling approaches. This study used climatic (i.e., annual precipitation, SPI, and KBDI), biophysical (i.e., below-ground biomass, elevation, slope, and NBR), and proxies to anthropogenic disturbance variables (i.e., access to road, access to forests, access to cities, human modification, and human population) to assess fire vulnerability within Sumatran peatlands. We created an ensemble model based on various machine learning approaches (i.e., random forest, support vector machine, maximum entropy, and boosted regression tree). We found that the ensemble model performed better compared to a single algorithm for depicting fire vulnerability within Sumatran peatlands. The NBR highly contributed to the vulnerability of peatland to fire in Sumatra in all ENSO phases, followed by the anthropogenic variables. We found that the high to very-high peat vulnerability to fire increases during El-Nino conditions with variations in its spatial patterns occurring under different ENSO phases. This study provides spatially explicit information to support the management of peat fires, which will be particularly useful for identifying peatland restoration priorities based on peatland vulnerability to fire maps. Our findings highlight Riau’s peatland as being the area most prone to fires area on Sumatra Island. Therefore, the groundwater level within this area should be intensively monitored to prevent peatland fires. In addition, conserving intact forests within peatland through the moratorium strategy and restoring the degraded peatland ecosystem through canal blocking is also crucial to coping with global climate change. |
Kurniawan, Fery; Adrianto, Lukri; Bengen, Dietriech Geoffrey; Prasetyo, Lilik B Hypothetical effects assessment of tourism on coastal water quality in the Marine Tourism Park of the Gili Matra Islands, Indonesia Journal Article In: Environment, Development and Sustainability, 2022. @article{Kurniawan2022,
title = {Hypothetical effects assessment of tourism on coastal water quality in the Marine Tourism Park of the Gili Matra Islands, Indonesia},
author = {Fery Kurniawan and Lukri Adrianto and Dietriech Geoffrey Bengen and Lilik B Prasetyo},
url = {https://link.springer.com/article/10.1007/s10668-022-02382-8},
doi = {10.1007/s10668-022-02382-8},
year = {2022},
date = {2022-05-10},
journal = {Environment, Development and Sustainability},
abstract = {Tourism is one of the most important issues facing marine protected areas (MPAs) and small islands worldwide. Tourism development is considered a contribution to pollution levels in the environment. This paper aims to evaluate the hypothetical effects of tourism development on water quality spatially and temporally using the coastal water quality index (CWQI) and Geographic Information System (GIS) in search of improved management for marine conservation areas. This study showed significant tourism influences on the CWQI in the Marine Tourism Park of the Gili Matra Islands, Lombok, Indonesia. Water quality variability indicates a significant spatiotemporal difference (p < 0.05) in the two tourism seasons. During the peak season of tourism, the CWQI decreased to poor conditions, i.e., ranging from 9.95 to 21.49 for marine biota and from 7.98 to 30.42 for marine tourism activities in 2013, and ranging from 39.52 to 44.42 for marine biota and from 44.13 to 47.28 for marine tourism activities, which were below the standard for both marine biota and marine tourism activities. On the contrary, it showed a better level (from poor to moderate) during the low season of tourism (ranging from 41.92 to 61.84 for marine biota and from 48.06 to 65.27 for marine tourism activities in 2014), providing a more acceptable condition for both aspects. The study proved that massive tourism development in the MPA and small islands could reduce water quality and increase vulnerability. Accordingly, integrated tourism management and the environment, waters, and land will be needed to develop sustainable tourism. The CWQI and GIS were applicable to assess water quality, both spatially and temporally, and become a quick reference in monitoring and initial evaluation of impact management.},
keywords = {coastal, tourism},
pubstate = {published},
tppubtype = {article}
}
Tourism is one of the most important issues facing marine protected areas (MPAs) and small islands worldwide. Tourism development is considered a contribution to pollution levels in the environment. This paper aims to evaluate the hypothetical effects of tourism development on water quality spatially and temporally using the coastal water quality index (CWQI) and Geographic Information System (GIS) in search of improved management for marine conservation areas. This study showed significant tourism influences on the CWQI in the Marine Tourism Park of the Gili Matra Islands, Lombok, Indonesia. Water quality variability indicates a significant spatiotemporal difference (p < 0.05) in the two tourism seasons. During the peak season of tourism, the CWQI decreased to poor conditions, i.e., ranging from 9.95 to 21.49 for marine biota and from 7.98 to 30.42 for marine tourism activities in 2013, and ranging from 39.52 to 44.42 for marine biota and from 44.13 to 47.28 for marine tourism activities, which were below the standard for both marine biota and marine tourism activities. On the contrary, it showed a better level (from poor to moderate) during the low season of tourism (ranging from 41.92 to 61.84 for marine biota and from 48.06 to 65.27 for marine tourism activities in 2014), providing a more acceptable condition for both aspects. The study proved that massive tourism development in the MPA and small islands could reduce water quality and increase vulnerability. Accordingly, integrated tourism management and the environment, waters, and land will be needed to develop sustainable tourism. The CWQI and GIS were applicable to assess water quality, both spatially and temporally, and become a quick reference in monitoring and initial evaluation of impact management. |
Rahadian, Aswin; Kusmana, Cecep; Setiawan, Yudi; Prasetyo, Lilik B Adaptive Mangrove Ecosystem Rehabilitation Plan based on Coastal Typology and Ecological Dynamics Approach Journal Article In: HAYATI Journal of Biosciences, vol. 29, no. 4, pp. 445-458, 2022, ISSN: 1978-3019. @article{Rahadian2022,
title = {Adaptive Mangrove Ecosystem Rehabilitation Plan based on Coastal Typology and Ecological Dynamics Approach},
author = {Aswin Rahadian and Cecep Kusmana and Yudi Setiawan and Lilik B Prasetyo},
url = {https://journal.ipb.ac.id/index.php/hayati/article/view/39193},
doi = {10.4308/hjb.29.4.445-458},
issn = {1978-3019},
year = {2022},
date = {2022-03-30},
journal = {HAYATI Journal of Biosciences},
volume = {29},
number = {4},
pages = {445-458},
abstract = {Mangrove rehabilitation has implications for important ecological, social and economic values for coastal communities. The mangroves ecosystem Karawang Regency is still under pressure due to the management and utilization that does not pay attention to the sustainability aspect. The rehabilitation plan to mangrove management must be adapted to the nature and characteristics of the habitat. This study aims to formulate technical considerations for the direction of a rehabilitation plan based on an ecological approach and the dynamics of the mangrove ecosystem. The methods used in this study were geospatial approach that integrated with field quanitative and qualitative data. The results show that the total of mangrove potential area in Karawang Regency was 19,139.53 ha, consisting of 421.95 ha (2.2%) of vegetated area and 18,717.58 ha (97.8%) of unvegetated area. We integrate mangrove typology, mangrove stand density, physical parameters, and land use as the basis for determining the direction of rehabilitation planning. In the estuarine deltaic mangrove typology, we aim at protecting with natural regeneration. In infringe areas, we recommend constructing natural coastal structures before planting. On the backward for intensive planting. Furthermore, mangroves with low density, medium density, and high density are recommended for planting, species enrichment, and protecting respectively, and on the pond with implementing the mixed mangrove-aquaculture system to bridge between rehabilitation effort and economic needs of coastal communities.},
keywords = {coastal, mangrove},
pubstate = {published},
tppubtype = {article}
}
Mangrove rehabilitation has implications for important ecological, social and economic values for coastal communities. The mangroves ecosystem Karawang Regency is still under pressure due to the management and utilization that does not pay attention to the sustainability aspect. The rehabilitation plan to mangrove management must be adapted to the nature and characteristics of the habitat. This study aims to formulate technical considerations for the direction of a rehabilitation plan based on an ecological approach and the dynamics of the mangrove ecosystem. The methods used in this study were geospatial approach that integrated with field quanitative and qualitative data. The results show that the total of mangrove potential area in Karawang Regency was 19,139.53 ha, consisting of 421.95 ha (2.2%) of vegetated area and 18,717.58 ha (97.8%) of unvegetated area. We integrate mangrove typology, mangrove stand density, physical parameters, and land use as the basis for determining the direction of rehabilitation planning. In the estuarine deltaic mangrove typology, we aim at protecting with natural regeneration. In infringe areas, we recommend constructing natural coastal structures before planting. On the backward for intensive planting. Furthermore, mangroves with low density, medium density, and high density are recommended for planting, species enrichment, and protecting respectively, and on the pond with implementing the mixed mangrove-aquaculture system to bridge between rehabilitation effort and economic needs of coastal communities. |
Purnomo, Danang Wahyu; Prasetyo, Lilik B; Widyatmoko, Didik; Rushayati, Siti Badriyah; Supriyatna, Ikar; Yani, Akhmad Diversity and carbon sequestration capacity of naturally growth vegetation in ex-nickel mining area in Kolaka, Southeast Sulawesi, Indonesia Journal Article In: Biodiversitas, vol. 23, no. 3, pp. 1433-1442, 2022, ISSN: 2085-4722. @article{Purnomo2022,
title = {Diversity and carbon sequestration capacity of naturally growth vegetation in ex-nickel mining area in Kolaka, Southeast Sulawesi, Indonesia},
author = {Danang Wahyu Purnomo and Lilik B Prasetyo and Didik Widyatmoko and Siti Badriyah Rushayati and Ikar Supriyatna and Akhmad Yani},
url = {https://smujo.id/biodiv/article/view/10518},
doi = {10.13057/biodiv/d230330},
issn = {2085-4722},
year = {2022},
date = {2022-02-22},
journal = {Biodiversitas},
volume = {23},
number = {3},
pages = {1433-1442},
abstract = {Diversity and carbon sequestration capacity of naturally growth vegetation in ex-nickel mining area in Kolaka, Southeast Sulawesi, Indonesia. Biodiversitas 23: 1433-1442. Efforts to restore forest integrity on ex-mining lands are essential to improve environmental quality and sequester carbon. One such effort is through revegetation of post-mined land including in ex-nickel mining in Southeast Sulawesi. This research analyzes the diversity of naturally regenerating plant species in the ex-nickel mining area in Kolaka, Southeast Sulawesi and determines several local tree species with the potential for carbon sequestration. Vegetation survey was conducted using a systematic nested sampling method at the post-mined site with three vegetation types: secondary forest, shrubs and bushes, and a reference/control site (i.e., natural forest in the nearby Lamedai Nature Reserve). Different types of vegetation were analyzed based on factors using Discriminant Analysis. Vegetation composition was analyzed using the Importance Value Index. Furthermore, biodiversity indicators were analyzed using Shannon-Wiener Diversity Index, Species Evenness Index, and Sorensen Similarity Index. Carbon absorption was measured using the leaf sample method and carbohydrate test. The results showed that the condition of the research site had been disturbed, and the succession process was still ongoing. The species diversity at all plant levels was classified as moderate category and the distribution of the community was unstable. At the tree level, the undisturbed areas had higher diversity. Eradication of Chromolaena odorata was needed to preserve the native vegetation and accelerate forest succession. Tree species recommended for restoring the ex-nickel mining area and carbon sequestration as core plants include Vitex glabrata R.Br., Alstonia macrophylla Wall. ex G.Don, Lithocarpus celebicus (Miq.) Rehder, Callicarpa pentandra Roxb., Dacryodes rugosa (Blume) H.J.Lam, Cananga odorata (Lam.) Hook.f. & Thomson, Glochidion rubrum Blume, Terminalia bellirica (Gaertn.) Roxb., and Psychotria calocarpa Ruiz & Pav., and other pioneer plants of Mallotus paniculatus (Lam.) Müll.Arg., Macaranga peltata (Roxb.) Müll.Arg., and Macaranga hispida (Blume) Müll.Arg.},
keywords = {carbon, mining, nickel},
pubstate = {published},
tppubtype = {article}
}
Diversity and carbon sequestration capacity of naturally growth vegetation in ex-nickel mining area in Kolaka, Southeast Sulawesi, Indonesia. Biodiversitas 23: 1433-1442. Efforts to restore forest integrity on ex-mining lands are essential to improve environmental quality and sequester carbon. One such effort is through revegetation of post-mined land including in ex-nickel mining in Southeast Sulawesi. This research analyzes the diversity of naturally regenerating plant species in the ex-nickel mining area in Kolaka, Southeast Sulawesi and determines several local tree species with the potential for carbon sequestration. Vegetation survey was conducted using a systematic nested sampling method at the post-mined site with three vegetation types: secondary forest, shrubs and bushes, and a reference/control site (i.e., natural forest in the nearby Lamedai Nature Reserve). Different types of vegetation were analyzed based on factors using Discriminant Analysis. Vegetation composition was analyzed using the Importance Value Index. Furthermore, biodiversity indicators were analyzed using Shannon-Wiener Diversity Index, Species Evenness Index, and Sorensen Similarity Index. Carbon absorption was measured using the leaf sample method and carbohydrate test. The results showed that the condition of the research site had been disturbed, and the succession process was still ongoing. The species diversity at all plant levels was classified as moderate category and the distribution of the community was unstable. At the tree level, the undisturbed areas had higher diversity. Eradication of Chromolaena odorata was needed to preserve the native vegetation and accelerate forest succession. Tree species recommended for restoring the ex-nickel mining area and carbon sequestration as core plants include Vitex glabrata R.Br., Alstonia macrophylla Wall. ex G.Don, Lithocarpus celebicus (Miq.) Rehder, Callicarpa pentandra Roxb., Dacryodes rugosa (Blume) H.J.Lam, Cananga odorata (Lam.) Hook.f. & Thomson, Glochidion rubrum Blume, Terminalia bellirica (Gaertn.) Roxb., and Psychotria calocarpa Ruiz & Pav., and other pioneer plants of Mallotus paniculatus (Lam.) Müll.Arg., Macaranga peltata (Roxb.) Müll.Arg., and Macaranga hispida (Blume) Müll.Arg. |
Condro, Aryo Adhi; Syartinilia, Syartinilia; Higuchi, Hiroyoshi; Mulyani, Yeni A; Raffiudin, Rika; Rusniarsyah, Luthfi; Setiawan, Yudi; Prasetyo, Lilik B Climate change leads to range contraction for Japanese population of the Oriental Honey-Buzzards: Implications for future conservation strategies Journal Article In: Global Ecology and Conservation, vol. 34, 2022. @article{Condro2022b,
title = {Climate change leads to range contraction for Japanese population of the Oriental Honey-Buzzards: Implications for future conservation strategies},
author = {Aryo Adhi Condro and Syartinilia Syartinilia and Hiroyoshi Higuchi and Yeni A Mulyani and Rika Raffiudin and Luthfi Rusniarsyah and Yudi Setiawan and Lilik B Prasetyo},
url = {https://www.sciencedirect.com/science/article/pii/S2351989422000464},
doi = {10.1016/j.gecco.2022.e02044},
year = {2022},
date = {2022-02-01},
journal = {Global Ecology and Conservation},
volume = {34},
abstract = {Over the past decades, global environmental changes have led to unfavorable effects on migratory birds. However, many species that encounter climate change are listed as least concern by International Union for Conservation of Nature. Using species distribution models, we quantified the redistributions of breeding and wintering sites of oriental honey buzzards, OHB (Pernis ptilorhynchus), a long-distance migratory raptor that often preys on the larvae of wasps and bees under changing climate based on shared socio-economic pathways scenarios. We also incorporated climate and land use risks based on climate anomalies and vegetation dynamics to assess future conservation strategies. The results revealed a significant range contraction on the wintering and breeding areas of the OHB species by 2050 and 2100. Our results suggest that the migration distance will likely increase under all scenarios. In addition, we found many high-risk areas across OHB habitats while refugia areas were relatively only covered a small proportion. Habitat restoration and developing new protected areas become a fundamental strategy for OHB conservation. Our approaches have provided comprehensive insights into broad biogeographic dynamics under multifaceted threats and how to tackle global changes through the specific landscape management for long-distance migrants.},
keywords = {honey bee},
pubstate = {published},
tppubtype = {article}
}
Over the past decades, global environmental changes have led to unfavorable effects on migratory birds. However, many species that encounter climate change are listed as least concern by International Union for Conservation of Nature. Using species distribution models, we quantified the redistributions of breeding and wintering sites of oriental honey buzzards, OHB (Pernis ptilorhynchus), a long-distance migratory raptor that often preys on the larvae of wasps and bees under changing climate based on shared socio-economic pathways scenarios. We also incorporated climate and land use risks based on climate anomalies and vegetation dynamics to assess future conservation strategies. The results revealed a significant range contraction on the wintering and breeding areas of the OHB species by 2050 and 2100. Our results suggest that the migration distance will likely increase under all scenarios. In addition, we found many high-risk areas across OHB habitats while refugia areas were relatively only covered a small proportion. Habitat restoration and developing new protected areas become a fundamental strategy for OHB conservation. Our approaches have provided comprehensive insights into broad biogeographic dynamics under multifaceted threats and how to tackle global changes through the specific landscape management for long-distance migrants. |
2021
|
Rizal, Muhammad; Saleh, Muhammad Buce; Prasetyo, Lilik B Biomass Estimation Model For Peat Swamp Forest Ecosystem Using LiDAR (Light Detection And Ranging) Journal Article In: TELKOMNIKA, vol. 19, no. 3, 2021, ISSN: 2302-9293. @article{Rizal2021,
title = {Biomass Estimation Model For Peat Swamp Forest Ecosystem Using LiDAR (Light Detection And Ranging)},
author = {Muhammad Rizal and Muhammad Buce Saleh and Lilik B Prasetyo},
url = {http://journal.uad.ac.id/index.php/TELKOMNIKA/article/view/18152},
doi = {10.12928/telkomnika.v19i3.18152},
issn = {2302-9293},
year = {2021},
date = {2021-06-01},
journal = {TELKOMNIKA},
volume = {19},
number = {3},
abstract = {Peat swamp forest plays avery important role in absorbing and storing large amounts of terrestrial carbon, both above ground and in the soil. There has been a lot of research on the estimation of the amount of biomass above the ground, but a little on peat swamp ecosystems using LIDAR technology, especially in Indonesia. The purpose of this study is to build a biomass estimation model based on LIDAR (Light Detection and Ranging) data. This technology can obtain information about the structure and characteristics of any vegetation in detail and in real time. Data was obtained from the East Kotawaringin Regency, Central Kalimantan. Biomass field was generated from the available allometry, and Point cloud of LiDAR was extracted into Canopy Cover (CC), and data on tree height, using the FRCI and Local Maxima (LM) method, respectively. The CC and tree height data were then used as independent variables in building the regression model. The best-fitted model was obtained after the scoring and ranking of several regression forms such as linear, quadratic, power, exponential and logarithmic. This research concluded that the quadratic regression model, with R2 of 72.16% and RMSE (Root Mean Square Error) of 0.0003% is the best-fitted estimation model (BK). Finally, the biomass value from the models was 244.510 tons/ha.},
keywords = {biomass, LiDAR, peat swamp},
pubstate = {published},
tppubtype = {article}
}
Peat swamp forest plays avery important role in absorbing and storing large amounts of terrestrial carbon, both above ground and in the soil. There has been a lot of research on the estimation of the amount of biomass above the ground, but a little on peat swamp ecosystems using LIDAR technology, especially in Indonesia. The purpose of this study is to build a biomass estimation model based on LIDAR (Light Detection and Ranging) data. This technology can obtain information about the structure and characteristics of any vegetation in detail and in real time. Data was obtained from the East Kotawaringin Regency, Central Kalimantan. Biomass field was generated from the available allometry, and Point cloud of LiDAR was extracted into Canopy Cover (CC), and data on tree height, using the FRCI and Local Maxima (LM) method, respectively. The CC and tree height data were then used as independent variables in building the regression model. The best-fitted model was obtained after the scoring and ranking of several regression forms such as linear, quadratic, power, exponential and logarithmic. This research concluded that the quadratic regression model, with R2 of 72.16% and RMSE (Root Mean Square Error) of 0.0003% is the best-fitted estimation model (BK). Finally, the biomass value from the models was 244.510 tons/ha. |
2020
|
Setiawan, Yudi; Rushayati, Siti Badriyah; Hermawan, Rachmad; Prasetyo, Lilik B; Wijayanto, Arif K The effect of utilization patterns of green open space on the dynamics change of air quality due to the Covid-19 pandemic in Jabodetabek region Journal Article In: Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management), vol. 10, no. 4, pp. 559-567, 2020, ISSN: 2460-5824. @article{Setiawan2020,
title = {The effect of utilization patterns of green open space on the dynamics change of air quality due to the Covid-19 pandemic in Jabodetabek region},
author = {Yudi Setiawan and Siti Badriyah Rushayati and Rachmad Hermawan and Lilik B Prasetyo and Arif K Wijayanto},
url = {https://journal.ipb.ac.id/index.php/jpsl/article/view/32550},
doi = {10.29244/jpsl.10.4.559-567},
issn = {2460-5824},
year = {2020},
date = {2020-12-31},
journal = {Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management)},
volume = {10},
number = {4},
pages = {559-567},
abstract = {The Covid-19 pandemic has had a global impact on all sectors including the environment. The spread of covid-19 is very much influenced by human activity and mobility. Human activities are also closelyrelated to air pollutant emissions. High concentrations of air pollutants during the Covid-19 pandemic will increase the risk of being exposed to Covid-19. Jakarta and its surroundingarea (known locally as Jabodetabek) havehigh population density. Thesecities are economic and industrial centers. Air pollutant emissions in these cities are very high. High concentrations of air pollutants during the Covid-19 pandemic will increase the risk of being exposed to Covid. To anticipate this problem, the government made a Large-Scale Social Restriction Policy (PSBB). Limited human activities, in addition to having an impact on reducing the risk of humans being exposed to Covid-19 from the droplets released by tested-positive of Covid-19, also have an impact on reducing emissions of air pollutants so that they can reduce the risk of being exposed to Covid-19. Several variables that influence vulnerability and risk to exposure to Covid-19 are the distribution of settlements, roads, economic centers (markets, business centers, industrial centers), and human mobility. In this study, we will also analyze the role of green open space on the risk of exposure to Covid-19. Green open space plays an important role in reducing air pollutants so that it will also affect the risk of being exposed to Covid-19. This study aimedto 1) examine the distribution of air pollutants based on the vulnerability and risk of COVID-19 in Jakarta,Bogor, Depok, Tangerang, and Bekasi (Jabodetabek), and 2) examine the results of the overlay between land cover and vulnerability and risk to Covid-19},
keywords = {Covid-19, Kualitas udara, ruang terbuka hujau},
pubstate = {published},
tppubtype = {article}
}
The Covid-19 pandemic has had a global impact on all sectors including the environment. The spread of covid-19 is very much influenced by human activity and mobility. Human activities are also closelyrelated to air pollutant emissions. High concentrations of air pollutants during the Covid-19 pandemic will increase the risk of being exposed to Covid-19. Jakarta and its surroundingarea (known locally as Jabodetabek) havehigh population density. Thesecities are economic and industrial centers. Air pollutant emissions in these cities are very high. High concentrations of air pollutants during the Covid-19 pandemic will increase the risk of being exposed to Covid. To anticipate this problem, the government made a Large-Scale Social Restriction Policy (PSBB). Limited human activities, in addition to having an impact on reducing the risk of humans being exposed to Covid-19 from the droplets released by tested-positive of Covid-19, also have an impact on reducing emissions of air pollutants so that they can reduce the risk of being exposed to Covid-19. Several variables that influence vulnerability and risk to exposure to Covid-19 are the distribution of settlements, roads, economic centers (markets, business centers, industrial centers), and human mobility. In this study, we will also analyze the role of green open space on the risk of exposure to Covid-19. Green open space plays an important role in reducing air pollutants so that it will also affect the risk of being exposed to Covid-19. This study aimedto 1) examine the distribution of air pollutants based on the vulnerability and risk of COVID-19 in Jakarta,Bogor, Depok, Tangerang, and Bekasi (Jabodetabek), and 2) examine the results of the overlay between land cover and vulnerability and risk to Covid-19 |
Jarulis,; Solihin, Dedy Duryadi; Mardiastuti, Ani; Prasetyo, Lilik B CHARACTERS OF MITOCHONDRIAL DNA D-LOOP HYPERVARIABLE III FRAGMENTS OF INDONESIAN RHINOCEROS HORNBILL (BUCEROS RHINOCEROS) (AVES: BUCEROTIDAE) Journal Article In: TREUBIA (A JOURNAL ON ZOOLOGY OF THE INDO-AUSTRALIAN ARCHIPELAGO), vol. 47, no. 2, pp. 99-110, 2020, ISSN: 2337 -876X. @article{Jarulis2020,
title = {CHARACTERS OF MITOCHONDRIAL DNA D-LOOP HYPERVARIABLE III FRAGMENTS OF INDONESIAN RHINOCEROS HORNBILL (BUCEROS RHINOCEROS) (AVES: BUCEROTIDAE)},
author = {Jarulis and Dedy Duryadi Solihin and Ani Mardiastuti and Lilik B Prasetyo},
url = {https://e-journal.biologi.lipi.go.id/index.php/treubia/article/view/3971/3261},
doi = {10.14203/treubia.v47i2.3971},
issn = {2337 -876X},
year = {2020},
date = {2020-12-30},
journal = {TREUBIA (A JOURNAL ON ZOOLOGY OF THE INDO-AUSTRALIAN ARCHIPELAGO)},
volume = {47},
number = {2},
pages = {99-110},
abstract = {The rhinoceros hornbill (Buceros rhinoceros) genetic characteristics consist of nucleotide polymorphisms, haplotypes, genetic distances, and relationships which are important for their conservation effort in Indonesia. We sequenced mitochondrial DNA D-loop hypervariable III fragments from five rhinoceros hornbill individuals at Safari Park Indonesia I and Ragunan Zoo, which were isolated using Dneasy® Blood and Tissue Kit Spin-Column Protocol, Qiagen. D-loop fragment replication was done by PCR technique using DLBuce_F (5'-TGGCCTTTCTCCAAGGTCTA-3') and DLBuce_R (5'-TGAAGG AGT TCATGGGCTTAG-3') primer. Thirty SNP sites were found in 788 bp D-loop sequences of five rhinoceros hornbill individuals and each individual had a different haplotype. The average genetic distance between individuals was 3.09% and all individuals were categorized into two groups (Group I: EC6TS, EC1RG, EC2TS and Group II: EC9TS, EC10TS) with a genetic distance of 3.99%. This result indicated that the two groups were distinct subspecies. The genetic distance between Indonesian and Thai rhinoceros hornbills was 10.76%. Five Indonesian rhinoceros hornbill individuals at Safari Park Indonesia I and Ragunan Zoo probably came from different populations, ancestors, and two different islands. This study can be of use for management consideration in captive breeding effort at both zoos. The D-loop sequence obtained is a useful character to distinguish three rhinoceros hornbill subspecies in Indonesia.},
keywords = {hornbill, rhinoceros},
pubstate = {published},
tppubtype = {article}
}
The rhinoceros hornbill (Buceros rhinoceros) genetic characteristics consist of nucleotide polymorphisms, haplotypes, genetic distances, and relationships which are important for their conservation effort in Indonesia. We sequenced mitochondrial DNA D-loop hypervariable III fragments from five rhinoceros hornbill individuals at Safari Park Indonesia I and Ragunan Zoo, which were isolated using Dneasy® Blood and Tissue Kit Spin-Column Protocol, Qiagen. D-loop fragment replication was done by PCR technique using DLBuce_F (5'-TGGCCTTTCTCCAAGGTCTA-3') and DLBuce_R (5'-TGAAGG AGT TCATGGGCTTAG-3') primer. Thirty SNP sites were found in 788 bp D-loop sequences of five rhinoceros hornbill individuals and each individual had a different haplotype. The average genetic distance between individuals was 3.09% and all individuals were categorized into two groups (Group I: EC6TS, EC1RG, EC2TS and Group II: EC9TS, EC10TS) with a genetic distance of 3.99%. This result indicated that the two groups were distinct subspecies. The genetic distance between Indonesian and Thai rhinoceros hornbills was 10.76%. Five Indonesian rhinoceros hornbill individuals at Safari Park Indonesia I and Ragunan Zoo probably came from different populations, ancestors, and two different islands. This study can be of use for management consideration in captive breeding effort at both zoos. The D-loop sequence obtained is a useful character to distinguish three rhinoceros hornbill subspecies in Indonesia. |
Kusrini, Mirza Dikari; Khairunnisa, Luna Raftika; Nusantara, Aria; Kartono, Agus Priyono; Prasetyo, Lilik B; Ayuningrum, Novi Tri; Faz, Fata Habiburrahman Diversity of Amphibians and Reptiles in Various Anthropogenic Disturbance Habitats in Nantu Forest, Sulawesi, Indonesia Journal Article In: Jurnal Manajemen Hutan Tropika, vol. 26, no. 3, pp. 291-302, 2020, ISSN: 2089-2063. @article{Kusrini2020,
title = {Diversity of Amphibians and Reptiles in Various Anthropogenic Disturbance Habitats in Nantu Forest, Sulawesi, Indonesia},
author = {Mirza Dikari Kusrini and Luna Raftika Khairunnisa and Aria Nusantara and Agus Priyono Kartono and Lilik B Prasetyo and Novi Tri Ayuningrum and Fata Habiburrahman Faz},
url = {http://journal.ipb.ac.id/index.php/jmht/article/view/31437},
doi = {10.7226/jtfm.26.3.291},
issn = {2089-2063},
year = {2020},
date = {2020-12-12},
journal = {Jurnal Manajemen Hutan Tropika},
volume = {26},
number = {3},
pages = {291-302},
abstract = {The Nantu Forest in Gorontalo Province, Sulawesi, Indonesia holds one of the few remaining pristine habitats in the island. The reserve is surrounded by human habituation which provide opportunity to study the impact of forest lost on biodversity. In addition, data on Nantu mostly focused on big mammals, as there is no previous herpetofauna survey at the area. Sampling of amphibian and reptile was conducted in June 2013 and in May–June 2014 using Visual Encounter Survey method, glue traps and transect sampling in seven different sites at the eastern part of Nantu. We categorized four habitat types based on human disturbances: high disturbed habitat (HDH), moderate disturbed habitat (MDH), low disturbed habitat (LDH) and pristine habitat (PH). A total of 680 individual amphibians (4 families; 17 species) and 119 individual reptiles (9 families; 29 species) were recorded. Species richness and species composition for amphibians and reptiles differs according to the level of human disturbances. Low level disturbances habitat demonstrated the highest diversity of amphibians and reptiles, whereas as expected, high distubed habitat showed the lowest diversity. Anthropogenic pressures in forest will decrease species richness of amphibian and reptiles. Although most amphibian and reptiles will be able to persist in low disturbances habitat, forest-dependent species will be lost when pristine forests are disturbed.},
keywords = {anthropogenic disturbances, biodiversity, herpetofauna, Nantu Wildlife Sanctuary, Sulawesi},
pubstate = {published},
tppubtype = {article}
}
The Nantu Forest in Gorontalo Province, Sulawesi, Indonesia holds one of the few remaining pristine habitats in the island. The reserve is surrounded by human habituation which provide opportunity to study the impact of forest lost on biodversity. In addition, data on Nantu mostly focused on big mammals, as there is no previous herpetofauna survey at the area. Sampling of amphibian and reptile was conducted in June 2013 and in May–June 2014 using Visual Encounter Survey method, glue traps and transect sampling in seven different sites at the eastern part of Nantu. We categorized four habitat types based on human disturbances: high disturbed habitat (HDH), moderate disturbed habitat (MDH), low disturbed habitat (LDH) and pristine habitat (PH). A total of 680 individual amphibians (4 families; 17 species) and 119 individual reptiles (9 families; 29 species) were recorded. Species richness and species composition for amphibians and reptiles differs according to the level of human disturbances. Low level disturbances habitat demonstrated the highest diversity of amphibians and reptiles, whereas as expected, high distubed habitat showed the lowest diversity. Anthropogenic pressures in forest will decrease species richness of amphibian and reptiles. Although most amphibian and reptiles will be able to persist in low disturbances habitat, forest-dependent species will be lost when pristine forests are disturbed. |
Wijayanto, Arif K; Rushayati, Siti Badriyah; Hermawan, Rachmad; Setiawan, Yudi; Prasetyo, Lilik B Jakarta and Surabaya land surface temperature before and during the Covid-19 pandemic Journal Article In: AES Bioflux, vol. 12, no. 3, pp. 213-221, 2020, ISSN: 2066-7647. @article{Wijayanto2020,
title = {Jakarta and Surabaya land surface temperature before and during the Covid-19 pandemic},
author = {Arif K Wijayanto and Siti Badriyah Rushayati and Rachmad Hermawan and Yudi Setiawan and Lilik B Prasetyo},
url = {http://www.aes.bioflux.com.ro/docs/2020.213-221.pdf},
issn = {2066-7647},
year = {2020},
date = {2020-12-02},
journal = {AES Bioflux},
volume = {12},
number = {3},
pages = {213-221},
abstract = {The first incidence of the novel coronavirus or Covid-19 was reported in late 2019, and in the following year, the disease was declared a global pandemic. In Indonesia, the first case was reported in early March, 2020, and ever since, the government has appealed to the public to reduce outdoor activities in order to curtail the spread of the virus. Consequently, many companies and institutions implemented the ‘Work from Home’ (WFH) policy. At the end of April, the provincial government of Jakarta issued large-scale social restrictions, locally called PSBB. These restrictions were later implemented in other cities such as Surabaya. Jakarta was the epicentre of the spread of the virus in Indonesia, followed by Surabaya, the second largest city in the country. Therefore, this study aimed to analyze the Thermal Humidity Index (THI) of both cities, before and during the pandemic. Data were obtained from the MODIS Terra Land Surface Temperature and Emissivity 8-Day Global 1km, from the 1st to 14th May, 2019 (before the pandemic), and during the same period the following year (during the pandemic). Furthermore, data analysis was carried out using Google Earth Engine (GEE), a cloud-based platform for geo-spatial data analysis. The hypothesis in this study was that the social restriction policy caused a difference in the THI before and during the pandemic. Therefore, this hypothesis was proven by the results, as the policy caused a decrease in the THI during the pandemic.},
keywords = {Covid-19, Land Surface Temperature, urban heat island},
pubstate = {published},
tppubtype = {article}
}
The first incidence of the novel coronavirus or Covid-19 was reported in late 2019, and in the following year, the disease was declared a global pandemic. In Indonesia, the first case was reported in early March, 2020, and ever since, the government has appealed to the public to reduce outdoor activities in order to curtail the spread of the virus. Consequently, many companies and institutions implemented the ‘Work from Home’ (WFH) policy. At the end of April, the provincial government of Jakarta issued large-scale social restrictions, locally called PSBB. These restrictions were later implemented in other cities such as Surabaya. Jakarta was the epicentre of the spread of the virus in Indonesia, followed by Surabaya, the second largest city in the country. Therefore, this study aimed to analyze the Thermal Humidity Index (THI) of both cities, before and during the pandemic. Data were obtained from the MODIS Terra Land Surface Temperature and Emissivity 8-Day Global 1km, from the 1st to 14th May, 2019 (before the pandemic), and during the same period the following year (during the pandemic). Furthermore, data analysis was carried out using Google Earth Engine (GEE), a cloud-based platform for geo-spatial data analysis. The hypothesis in this study was that the social restriction policy caused a difference in the THI before and during the pandemic. Therefore, this hypothesis was proven by the results, as the policy caused a decrease in the THI during the pandemic. |
Repi, Terri; Masy'ud, Burhanuddin; Mustari, Abdul Haris; Prasetyo, Lilik B Population density, geographical distribution and habitat of Talaud bear cuscus (Ailurops melanotis Thomas, 1898) Journal Article In: Biodiversitas, vol. 21, no. 12, pp. 5621-5631, 2020. @article{Repi2020,
title = {Population density, geographical distribution and habitat of Talaud bear cuscus (Ailurops melanotis Thomas, 1898)},
author = {Terri Repi and Burhanuddin Masy'ud and Abdul Haris Mustari and Lilik B Prasetyo},
url = {https://smujo.id/biodiv/article/view/6833},
doi = {10.13057/biodiv/d211207},
year = {2020},
date = {2020-11-06},
journal = {Biodiversitas},
volume = {21},
number = {12},
pages = {5621-5631},
abstract = {The Talaud bear cuscus (Ailurops melanotis) has been reported from Sangihe (the largest island in the Sangihe Island group) and Salibabu (within the Talaud Islands). As an endemic species of Indonesia, this species is rare and there is no certainty regarding its precise geographic distribution or population size. This research aimed to estimate population density and provide the first preliminary data on its geographical distribution, as well as general description of its habitat. Our research shows that A. melanotis occurs on three islands: Salibabu Island, Nusa Island, and Bukide Island, and probably also exists in the Sahandaruman mountain on Sangihe Island. Our population surveys estimate, population density on each island as: Salibabu: 3.69 ± 2.54 ind/km2, with an estimated total population of 28.95 individuals, Nusa Island: was 12.31 ± 2.58 ind/km2, with an estimated population of 19.08 individuals, and Bukide Island: 7.17 ± 1.79/km2, with an estimated population of 10.40 individuals. Information regarding population is a key guiding factor in conservation efforts, where population size is related to extinction risk (threat status) and its geographical distribution, this can help to determine conservation priorities for species or habitats.},
keywords = {Ailurops melanotis, conservation, density, distribution, habitat, population},
pubstate = {published},
tppubtype = {article}
}
The Talaud bear cuscus (Ailurops melanotis) has been reported from Sangihe (the largest island in the Sangihe Island group) and Salibabu (within the Talaud Islands). As an endemic species of Indonesia, this species is rare and there is no certainty regarding its precise geographic distribution or population size. This research aimed to estimate population density and provide the first preliminary data on its geographical distribution, as well as general description of its habitat. Our research shows that A. melanotis occurs on three islands: Salibabu Island, Nusa Island, and Bukide Island, and probably also exists in the Sahandaruman mountain on Sangihe Island. Our population surveys estimate, population density on each island as: Salibabu: 3.69 ± 2.54 ind/km2, with an estimated total population of 28.95 individuals, Nusa Island: was 12.31 ± 2.58 ind/km2, with an estimated population of 19.08 individuals, and Bukide Island: 7.17 ± 1.79/km2, with an estimated population of 10.40 individuals. Information regarding population is a key guiding factor in conservation efforts, where population size is related to extinction risk (threat status) and its geographical distribution, this can help to determine conservation priorities for species or habitats. |
Septiana, Wardi; Munawir, Ahmad; Pairah,; Erlan, Mochamad; Irawan, Yosi; Santosa, Yanto; Prasetyo, Lilik B Distribution and Characteristics of Javan Hawk Eagle Nesting Trees in Gunung Halimun Salak National Park, Indonesia Journal Article In: Jurnal Biodjati, vol. 5, no. 2, pp. 182-190, 2020, ISSN: 2541-4208. @article{Septiana2020,
title = {Distribution and Characteristics of Javan Hawk Eagle Nesting Trees in Gunung Halimun Salak National Park, Indonesia},
author = {Wardi Septiana and Ahmad Munawir and Pairah and Mochamad Erlan and Yosi Irawan and Yanto Santosa and Lilik B Prasetyo},
url = {https://journal.uinsgd.ac.id/index.php/biodjati/article/view/8481},
doi = {10.15575/biodjati.v5i2.8481},
issn = {2541-4208},
year = {2020},
date = {2020-11-01},
journal = {Jurnal Biodjati},
volume = {5},
number = {2},
pages = {182-190},
abstract = {Javan Hawk Eagle is one of the three keys species of the Gunung Halimun Salak National Park and endemic to the island of Java. Protecting the active Javan Hawk Eagle nesting tree is one of the efforts to increase the success rate of Java Hawk Eagle breeding so that information on the distribution and characteris-tics of Javan Hawk Eagle nesting tree is needed. Field exploration was carried out to determine the existence of the Javan Hawk Eagle nest. There were 10 individuals of Javan Hawk Eagle nesting trees which consisted of 5 species namely Rasamala, Huru, Damar, Leng-sar and Manggong with tree architecture models of rauh, massart, scarrone and aubreville, tree height between 26-55 m and height of nests between 18-41m. The Javan Hawk Eagle nesting trees grow in primary, secondary, and plantation forests in a height between 670- 1295 masl, with a steep and very steep slope, the majority of the dis-tance from the river is less than 100 m and the majority of the dis-tance with ecotone is less than 600 m. Javan Hawk Eagle nest on Damar is the first finding at Gunung Halimun Salak National Park. },
keywords = {Gunung Halimun Salak National Park, Javan Hawk Eagle},
pubstate = {published},
tppubtype = {article}
}
Javan Hawk Eagle is one of the three keys species of the Gunung Halimun Salak National Park and endemic to the island of Java. Protecting the active Javan Hawk Eagle nesting tree is one of the efforts to increase the success rate of Java Hawk Eagle breeding so that information on the distribution and characteris-tics of Javan Hawk Eagle nesting tree is needed. Field exploration was carried out to determine the existence of the Javan Hawk Eagle nest. There were 10 individuals of Javan Hawk Eagle nesting trees which consisted of 5 species namely Rasamala, Huru, Damar, Leng-sar and Manggong with tree architecture models of rauh, massart, scarrone and aubreville, tree height between 26-55 m and height of nests between 18-41m. The Javan Hawk Eagle nesting trees grow in primary, secondary, and plantation forests in a height between 670- 1295 masl, with a steep and very steep slope, the majority of the dis-tance from the river is less than 100 m and the majority of the dis-tance with ecotone is less than 600 m. Javan Hawk Eagle nest on Damar is the first finding at Gunung Halimun Salak National Park. |
Atmoko, Tri; Mardiastuti, Ani; Bismark, M; Prasetyo, Lilik B; Iskandar, Entang Habitat suitability of Proboscis monkey (Nasalis larvatus) in Berau Delta, East Kalimantan, Indonesia Journal Article In: Biodiversitas, vol. 21, no. 11, pp. 5155-5163, 2020. @article{Atmoko2020,
title = {Habitat suitability of Proboscis monkey (Nasalis larvatus) in Berau Delta, East Kalimantan, Indonesia},
author = {Tri Atmoko and Ani Mardiastuti and M Bismark and Lilik B Prasetyo and Entang Iskandar},
url = {https://smujo.id/biodiv/article/view/6873},
doi = {10.13057/biodiv/d211121},
year = {2020},
date = {2020-10-14},
journal = {Biodiversitas},
volume = {21},
number = {11},
pages = {5155-5163},
abstract = {The proboscis monkey (Nasalis larvatus) is an endemic species to Borneos’ island and is largely confined to mangrove, riverine, and swamp forest. Most of their habitat is outside the conservation due to degraded and habitat converted. Habitat loss is a significant threat to a decreased in the monkey's population. Berau Delta is an unprotected habitat of proboscis monkey, lacking in attention and experiencing a lot of disturbances. This study was conducted on April – August 2019; with aims of the study is to determine Species Distribution Modeling (SDM) for identifying proboscis monkey habitat suitability in Delta Berau, East Kalimantan. The MaxEnt algorithm was used to produce a habitat suitability map based on this species’ occurrence records and environmental predictors. We built the models using 208 points of proboscis monkey presence and 12 environment variables within the study area. Model performance was assessed by examining the area under the curve. The variables most influencing the habitat suitability model were the riverine habitat (60.9%), distance from the pond (16.0%), and distance from the coastline (5.2%). The proboscis monkey suitable habitat is only 9.32% (8,726.58 ha) from 93,631.41 ha total area. The appropriate habitat areas are Sapinang Island, Bungkung Island, Sambuayan Island, Saodang Kecil Island, Besing Island, Lati River, Bebanir Lama, Batu-Batu, and Semanting Bay. We provide some suggestions for the proboscis monkey conservation, which are local protection of uninhabited islands, participatory ecotourism management, and company involvement in protection and management efforts.},
keywords = {Colobinae, MaxEnt, primate conservation, riverine forest, Species Distribution Model},
pubstate = {published},
tppubtype = {article}
}
The proboscis monkey (Nasalis larvatus) is an endemic species to Borneos’ island and is largely confined to mangrove, riverine, and swamp forest. Most of their habitat is outside the conservation due to degraded and habitat converted. Habitat loss is a significant threat to a decreased in the monkey's population. Berau Delta is an unprotected habitat of proboscis monkey, lacking in attention and experiencing a lot of disturbances. This study was conducted on April – August 2019; with aims of the study is to determine Species Distribution Modeling (SDM) for identifying proboscis monkey habitat suitability in Delta Berau, East Kalimantan. The MaxEnt algorithm was used to produce a habitat suitability map based on this species’ occurrence records and environmental predictors. We built the models using 208 points of proboscis monkey presence and 12 environment variables within the study area. Model performance was assessed by examining the area under the curve. The variables most influencing the habitat suitability model were the riverine habitat (60.9%), distance from the pond (16.0%), and distance from the coastline (5.2%). The proboscis monkey suitable habitat is only 9.32% (8,726.58 ha) from 93,631.41 ha total area. The appropriate habitat areas are Sapinang Island, Bungkung Island, Sambuayan Island, Saodang Kecil Island, Besing Island, Lati River, Bebanir Lama, Batu-Batu, and Semanting Bay. We provide some suggestions for the proboscis monkey conservation, which are local protection of uninhabited islands, participatory ecotourism management, and company involvement in protection and management efforts. |
Condro, Aryo Adhi; Setiawan, Yudi; Prasetyo, Lilik B; Pramulya, Rahmat; Siahaan, Lasriama Retrieving the National Main Commodity Maps in Indonesia Based on High-Resolution Remotely Sensed Data Using Cloud Computing Platform Journal Article In: Land, vol. 9, no. 10, pp. 377, 2020. @article{Condro2020,
title = {Retrieving the National Main Commodity Maps in Indonesia Based on High-Resolution Remotely Sensed Data Using Cloud Computing Platform},
author = {Aryo Adhi Condro and Yudi Setiawan and Lilik B Prasetyo and Rahmat Pramulya and Lasriama Siahaan},
url = {https://www.mdpi.com/2073-445X/9/10/377https://algm.ipb.ac.id/wp-content/uploads/2020/11/land-09-00377.pdf},
doi = {10.3390/land9100377},
year = {2020},
date = {2020-10-08},
journal = {Land},
volume = {9},
number = {10},
pages = {377},
abstract = {Indonesia has the most favorable climates for agriculture because of its location in the tropical climatic zones. The country has several commodities to support economics growth that are driven by key export commodities—e.g., oil palm, rubber, paddy, cacao, and coffee. Thus, identifying the main commodities in Indonesia using spatially-explicit tools is essential to understand the precise productivity derived from the agricultural sectors. Many previous studies have used predictions developed using binary maps of general crop cover. Here, we present national commodity maps for Indonesia based on remote sensing data using Google Earth Engine. We evaluated a machine learning algorithm—i.e., Random Forest to parameterize how the area in commodity varied in Indonesia. We used various predictors to estimate the productivity of various commodities based on multispectral satellite imageries (36 predictors) at 30-meters spatial resolution. The national commodity map has a relatively high accuracy, with an overall accuracy of about 95% and Kappa coefficient of about 0.90. The results suggest that the oil palm plantation was the highest commodity product that occupied the largest land of Indonesia. However, this study also showed that the land area in rubber, rice paddies, and cacao commodities was underestimated due to its lack of training samples. Improvement in training data collection for each commodity should be done to increase the accuracy of the commodity maps. The commodity data can be viewed online (website can be found in the end of conclusions). This data can further provide significant information related to the agricultural sectors to investigate food provisioning, particularly in Indonesia.},
keywords = {commodity, GEE},
pubstate = {published},
tppubtype = {article}
}
Indonesia has the most favorable climates for agriculture because of its location in the tropical climatic zones. The country has several commodities to support economics growth that are driven by key export commodities—e.g., oil palm, rubber, paddy, cacao, and coffee. Thus, identifying the main commodities in Indonesia using spatially-explicit tools is essential to understand the precise productivity derived from the agricultural sectors. Many previous studies have used predictions developed using binary maps of general crop cover. Here, we present national commodity maps for Indonesia based on remote sensing data using Google Earth Engine. We evaluated a machine learning algorithm—i.e., Random Forest to parameterize how the area in commodity varied in Indonesia. We used various predictors to estimate the productivity of various commodities based on multispectral satellite imageries (36 predictors) at 30-meters spatial resolution. The national commodity map has a relatively high accuracy, with an overall accuracy of about 95% and Kappa coefficient of about 0.90. The results suggest that the oil palm plantation was the highest commodity product that occupied the largest land of Indonesia. However, this study also showed that the land area in rubber, rice paddies, and cacao commodities was underestimated due to its lack of training samples. Improvement in training data collection for each commodity should be done to increase the accuracy of the commodity maps. The commodity data can be viewed online (website can be found in the end of conclusions). This data can further provide significant information related to the agricultural sectors to investigate food provisioning, particularly in Indonesia. |
Juniyanti, Lila; Prasetyo, Lilik B; Aprianto, Dwi Putra; Purnomo, Herry; Kartodiharjo, Hariadi Perubahan penggunaan dan tutupan lahan, serta faktor penyebabnya di Pulau Bengkalis, Provinsi Riau (periode 1990-2019) Journal Article In: Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan, vol. 10, no. 3, pp. 419-435, 2020. @article{Juniyanti2020,
title = {Perubahan penggunaan dan tutupan lahan, serta faktor penyebabnya di Pulau Bengkalis, Provinsi Riau (periode 1990-2019)},
author = {Lila Juniyanti and Lilik B Prasetyo and Dwi Putra Aprianto and Herry Purnomo and Hariadi Kartodiharjo},
url = {http://journal.ipb.ac.id/index.php/jpsl/article/view/31164},
doi = {10.29244/jpsl.10.3.419-435},
year = {2020},
date = {2020-10-01},
journal = {Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan},
volume = {10},
number = {3},
pages = {419-435},
abstract = {Indonesia is one of the countries with dynamic land cover changes because the country's economy is sourced from land-based resource management. On the other hand, it has negative impacts such as social conflict and environmental damage. This paper observed patterns of land change and explores its driving forces during 1900-2019 on Bengkalis Island, Indonesia to monitor and provide information that can be used as a base for reducing uncontrolled land-use changes in an area. We reviewed previous reports and research, observed land cover conditions in the field, carried out focus group discussions, and deep interviews. We implemented GIS to capture time-series land cover and land-use changes. The results showed that the forest cover has declined sharply since 1990. After 2000, the area of mixed garden was larger than the forest cover. The area of oil palm and forest plantations began to increase. The transmigration policy has triggered masive land clearing on Bengkalis Island. Land clearing by transmigrants and the economic crisis have led to greater land clearing by spontaneous transmigrants.},
keywords = {direct causes, spatial analysis, time-series, underlying causes},
pubstate = {published},
tppubtype = {article}
}
Indonesia is one of the countries with dynamic land cover changes because the country's economy is sourced from land-based resource management. On the other hand, it has negative impacts such as social conflict and environmental damage. This paper observed patterns of land change and explores its driving forces during 1900-2019 on Bengkalis Island, Indonesia to monitor and provide information that can be used as a base for reducing uncontrolled land-use changes in an area. We reviewed previous reports and research, observed land cover conditions in the field, carried out focus group discussions, and deep interviews. We implemented GIS to capture time-series land cover and land-use changes. The results showed that the forest cover has declined sharply since 1990. After 2000, the area of mixed garden was larger than the forest cover. The area of oil palm and forest plantations began to increase. The transmigration policy has triggered masive land clearing on Bengkalis Island. Land clearing by transmigrants and the economic crisis have led to greater land clearing by spontaneous transmigrants. |
Suyamto, Desi; Condro, Aryo Adhi; Prasetyo, Lilik B; Wijayanto, Arif K Assessing the Agreement between Deforestation Maps of Kalimantan from Various Sources Conference vol. 556, no. 1, IOP Conf. Ser.: Earth Environ. Sci, 2020. @conference{Suyamto2020,
title = {Assessing the Agreement between Deforestation Maps of Kalimantan from Various Sources},
author = {Desi Suyamto and Aryo Adhi Condro and Lilik B Prasetyo and Arif K Wijayanto},
url = {https://iopscience.iop.org/article/10.1088/1755-1315/556/1/012011/pdf},
doi = {10.1088/1755-1315/556/1/012011},
year = {2020},
date = {2020-09-22},
volume = {556},
number = {1},
publisher = {IOP Conf. Ser.: Earth Environ. Sci},
abstract = {Due to its multiscale impacts, deforestation of tropical rainforests had become a global concern. A number of stakeholders comprising government, research agencies, and NGOs; ranging from local to international levels; have developed their own forest monitoring systems for detecting forest loss. However, discrepancies on deforestation reports from various producers often trigger public debates; which mostly degenerate the productivity of efforts in providing salient, legitimate and credible data on deforestation. Thus, we should reconcile the dispute by acknowledging the deforestation data from all sources. This study assessed the agreement between deforestation maps from various sources. In this case, deforestation maps of Kalimantan within 2009-2013 period from 4 sources were used; i.e. deforestation maps from European Space Agency - Climate Change Initiative (ESA-CCI), Forest Watch Indonesia (FWI), Global Forest Watch (GFW), and Indonesian Ministry of Environment and Forestry (MoEF). We found that the inter-rater agreement between deforestation maps were relatively low, as indicated by Cohen's kappa (κ), ranging from slight (κ=0.18 between ESA-CCI and GFW) to fair (0.24 ≤ κ ≤ 0.35 for other pairs of sources); due to omission/commission disagreements (47.82% to 87.58%). It suggests that in order to reconcile the dispute, we should remove the omission disagreement by forming the union of deforestation maps. The results from further analyses proved that the union of deforestation maps increased the agreement to moderate (κ=0.44 between union map and FWI) and even substantial (κ=0.79 between union map and GFW). Findings of this study should support the implementation of one map policy.},
keywords = {deforestation},
pubstate = {published},
tppubtype = {conference}
}
Due to its multiscale impacts, deforestation of tropical rainforests had become a global concern. A number of stakeholders comprising government, research agencies, and NGOs; ranging from local to international levels; have developed their own forest monitoring systems for detecting forest loss. However, discrepancies on deforestation reports from various producers often trigger public debates; which mostly degenerate the productivity of efforts in providing salient, legitimate and credible data on deforestation. Thus, we should reconcile the dispute by acknowledging the deforestation data from all sources. This study assessed the agreement between deforestation maps from various sources. In this case, deforestation maps of Kalimantan within 2009-2013 period from 4 sources were used; i.e. deforestation maps from European Space Agency - Climate Change Initiative (ESA-CCI), Forest Watch Indonesia (FWI), Global Forest Watch (GFW), and Indonesian Ministry of Environment and Forestry (MoEF). We found that the inter-rater agreement between deforestation maps were relatively low, as indicated by Cohen's kappa (κ), ranging from slight (κ=0.18 between ESA-CCI and GFW) to fair (0.24 ≤ κ ≤ 0.35 for other pairs of sources); due to omission/commission disagreements (47.82% to 87.58%). It suggests that in order to reconcile the dispute, we should remove the omission disagreement by forming the union of deforestation maps. The results from further analyses proved that the union of deforestation maps increased the agreement to moderate (κ=0.44 between union map and FWI) and even substantial (κ=0.79 between union map and GFW). Findings of this study should support the implementation of one map policy. |
Irlan,; Saleh, Muhammad Buce; Prasetyo, Lilik B; Setiawan, Yudi Evaluation of Tree Detection and Segmentation Algorithms in Peat Swamp Forest Based on LiDAR Point Clouds Data Journal Article In: Jurnal Manajemen Hutan Tropika, vol. 26, no. 2, pp. 123-132, 2020, ISSN: 2089-2063. @article{Irlan2020,
title = {Evaluation of Tree Detection and Segmentation Algorithms in Peat Swamp Forest Based on LiDAR Point Clouds Data},
author = {Irlan and Muhammad Buce Saleh and Lilik B Prasetyo and Yudi Setiawan},
url = {http://journal.ipb.ac.id/index.php/jmht/article/view/30179},
doi = {10.7226/jtfm.26.2.123},
issn = {2089-2063},
year = {2020},
date = {2020-08-13},
journal = {Jurnal Manajemen Hutan Tropika},
volume = {26},
number = {2},
pages = {123-132},
abstract = {Application of LiDAR for tree detection and tree canopy segmentation has been widely used in conifer plantation forest in temperate countries with high accuracy, however its application on tropical natural forest especially peat swamp forest hardly found. The objective of this study was evaluated algorithms of individual tree detection and canopy segmentation used LiDAR data in peat swamp forest. The algorithms included (a) Local Maxima (LM) with various variable window size combined with growing region, (b) LM with various variable window size combined with Voronoi Tessellation, (c) LM with various fixed window size combined with growing region, (d) LM with various fixed window size combined with Voronoi Tessellation, and (e) Tree Relative Distance algorithm. The results show that algorithm with the best accuracy was the Tree Relative Distance algorithm with the highest overall F-score of 0.63. The tree relative distance algorithm also provides the highest accuracy in determining three tree parameters which are position, height and diameter of tree canopy with a RMSE value 1.08 m, 6.45 m and 1.19 m, respectively.},
keywords = {LiDAR, peat swamp, segmentation},
pubstate = {published},
tppubtype = {article}
}
Application of LiDAR for tree detection and tree canopy segmentation has been widely used in conifer plantation forest in temperate countries with high accuracy, however its application on tropical natural forest especially peat swamp forest hardly found. The objective of this study was evaluated algorithms of individual tree detection and canopy segmentation used LiDAR data in peat swamp forest. The algorithms included (a) Local Maxima (LM) with various variable window size combined with growing region, (b) LM with various variable window size combined with Voronoi Tessellation, (c) LM with various fixed window size combined with growing region, (d) LM with various fixed window size combined with Voronoi Tessellation, and (e) Tree Relative Distance algorithm. The results show that algorithm with the best accuracy was the Tree Relative Distance algorithm with the highest overall F-score of 0.63. The tree relative distance algorithm also provides the highest accuracy in determining three tree parameters which are position, height and diameter of tree canopy with a RMSE value 1.08 m, 6.45 m and 1.19 m, respectively. |
Irlan,; Saleh, Muhammad Buce; Prasetyo, Lilik B Evaluation of Tree Detection and Segmentation Algorithms in Peat Swamp Forest Based on LiDAR Point Clouds Data Journal Article In: Jurnal Manajemen Hutan Tropika, vol. 26, no. 2, pp. 123, 2020, ISSN: 2089-2063. @article{Irlan2020b,
title = {Evaluation of Tree Detection and Segmentation Algorithms in Peat Swamp Forest Based on LiDAR Point Clouds Data},
author = {Irlan and Muhammad Buce Saleh and Lilik B Prasetyo},
url = {https://journal.ipb.ac.id/index.php/jmht/article/view/30179},
doi = {10.7226/jtfm.26.2.123},
issn = {2089-2063},
year = {2020},
date = {2020-08-13},
journal = {Jurnal Manajemen Hutan Tropika},
volume = {26},
number = {2},
pages = {123},
abstract = {Application of LiDAR for tree detection and tree canopy segmentation has been widely used in conifer plantation forest in temperate countries with high accuracy, however its application on tropical natural forest especially peat swamp forest hardly found. The objective of this study was evaluated algorithms of individual tree detection and canopy segmentation used LiDAR data in peat swamp forest. The algorithms included (a) Local Maxima (LM) with various variable window size combined with growing region, (b) LM with various variable window size combined with Voronoi Tessellation, (c) LM with various fixed window size combined with growing region, (d) LM with various fixed window size combined with Voronoi Tessellation, and (e) Tree Relative Distance algorithm. The results show that algorithm with the best accuracy was the Tree Relative Distance algorithm with the highest overall F-score of 0.63. The tree relative distance algorithm also provides the highest accuracy in determining three tree parameters which are position, height and diameter of tree canopy with a RMSE value 1.08 m, 6.45 m and 1.19 m, respectively.},
keywords = {LiDAR, peat swamp, point cloud},
pubstate = {published},
tppubtype = {article}
}
Application of LiDAR for tree detection and tree canopy segmentation has been widely used in conifer plantation forest in temperate countries with high accuracy, however its application on tropical natural forest especially peat swamp forest hardly found. The objective of this study was evaluated algorithms of individual tree detection and canopy segmentation used LiDAR data in peat swamp forest. The algorithms included (a) Local Maxima (LM) with various variable window size combined with growing region, (b) LM with various variable window size combined with Voronoi Tessellation, (c) LM with various fixed window size combined with growing region, (d) LM with various fixed window size combined with Voronoi Tessellation, and (e) Tree Relative Distance algorithm. The results show that algorithm with the best accuracy was the Tree Relative Distance algorithm with the highest overall F-score of 0.63. The tree relative distance algorithm also provides the highest accuracy in determining three tree parameters which are position, height and diameter of tree canopy with a RMSE value 1.08 m, 6.45 m and 1.19 m, respectively. |
Maulana, Sandhi I; Syaufina, Lailan; Prasetyo, Lilik B; Aidi, M N A spatial decision support system for peatland fires prediction and prevention in Bengkalis Regency, Indonesia Conference vol. 528, IOP Conf. Ser.: Earth Environ. Sci, 2020. @conference{Maulana2020b,
title = {A spatial decision support system for peatland fires prediction and prevention in Bengkalis Regency, Indonesia},
author = {Sandhi I Maulana and Lailan Syaufina and Lilik B Prasetyo and M N Aidi},
url = {https://iopscience.iop.org/article/10.1088/1755-1315/528/1/012052/meta},
doi = {10.1088/1755-1315/528/1/012052},
year = {2020},
date = {2020-07-21},
volume = {528},
publisher = {IOP Conf. Ser.: Earth Environ. Sci},
abstract = {A Spatial decision support system (SDSS) is an integrated computer-based system that can be used to support decision makers in addressing spatial problems through iterative approaches with functionality for handling both of spatial and non-spatial databases, analytical modelling capabilities, decision making support, as well as effective data and information presentation utilities. Previously, many studies have proven that this kind of decision support system is also useful in addressing wildfires problems effectively. Considering this technological advancement, this study is primarily aimed to develop a peatland fires management system by implementing the concept of SDSS. Developed system in this study is consisting of two separate sub-system, namely prediction and prevention sub-systems, which are then integrated into one whole working scheme using loose coupling method. Overall, it can be concluded that such integrated prediction and prevention system has various advantages. Firstly, it is useful to establish rapid coordination among involved stakeholders in deciding suitable approaches to prevent peatland fires. Secondly, promoting a more pro-active fire management system that is relied on predict-and-prevent approach. Thirdly, avoiding further delay on fires prevention while minimizing error in resources allocation. Lastly, this kind of decision support system can be rapidly updated following on-going technological and field situation developments.},
keywords = {Bengkalis, DSS, fire, peat land, Riau},
pubstate = {published},
tppubtype = {conference}
}
A Spatial decision support system (SDSS) is an integrated computer-based system that can be used to support decision makers in addressing spatial problems through iterative approaches with functionality for handling both of spatial and non-spatial databases, analytical modelling capabilities, decision making support, as well as effective data and information presentation utilities. Previously, many studies have proven that this kind of decision support system is also useful in addressing wildfires problems effectively. Considering this technological advancement, this study is primarily aimed to develop a peatland fires management system by implementing the concept of SDSS. Developed system in this study is consisting of two separate sub-system, namely prediction and prevention sub-systems, which are then integrated into one whole working scheme using loose coupling method. Overall, it can be concluded that such integrated prediction and prevention system has various advantages. Firstly, it is useful to establish rapid coordination among involved stakeholders in deciding suitable approaches to prevent peatland fires. Secondly, promoting a more pro-active fire management system that is relied on predict-and-prevent approach. Thirdly, avoiding further delay on fires prevention while minimizing error in resources allocation. Lastly, this kind of decision support system can be rapidly updated following on-going technological and field situation developments. |
Kamal, Muhammad; Farda, Nur Mohammad; Jamaluddin, Ilham; Parela, Artha; Wikantika, Ketut; Prasetyo, Lilik B; Irawan, Bambang A preliminary study on machine learning and google earth engine for mangrove mapping Conference vol. 500, IOP Conf. Ser.: Earth Environ. Sci, 2020. @conference{Kamal2020,
title = {A preliminary study on machine learning and google earth engine for mangrove mapping},
author = {Muhammad Kamal and Nur Mohammad Farda and Ilham Jamaluddin and Artha Parela and Ketut Wikantika and Lilik B Prasetyo and Bambang Irawan},
url = {https://iopscience.iop.org/article/10.1088/1755-1315/500/1/012038/meta},
doi = {10.1088/1755-1315/500/1/012038},
year = {2020},
date = {2020-07-03},
volume = {500},
publisher = {IOP Conf. Ser.: Earth Environ. Sci},
abstract = {The alarming rate of global mangrove forest degradation corroborates the need for providing fast, up-to-date and accurate mangrove maps. Conventional scene by scene image classification approach is inefficient and time consuming. The development of Google Earth Engine (GEE) provides a cloud platform to access and seamlessly process large amount of freely available satellite imagery. The GEE also provides a set of the state-of-the-art classifiers for pixel-based classification that can be used for mangrove mapping. This study is an initial effort which is aimed to combine machine learning and GEE for mapping mangrove extent. We used two Landsat 8 scenes over Agats and Timika Papua area as pilot images for this study; path 102 row 64 (2014/10/19) and path 103 row 63 (2013/05/16). The first image was used to develop local training areas for the machine learning classification, while the second one was used as a test image for GEE on the cloud. A total of 838 points samples were collected representing mangroves (244), non-mangroves (161), water bodies (311), and cloud (122) class. These training areas were used by support vector machine classifier in GEE to classify the first image. The classification result show mangrove objects could be efficiently delineated by this algorithm as confirmed by visual checking. This algorithm was then applied to the second image in GEE to check the consistency of the result. A simultaneous view of both classified images shows a corresponding pattern of mangrove forest, which mean the mangrove object has been consistently delineated by the algorithm.},
keywords = {GEE, machine learning, mangrove},
pubstate = {published},
tppubtype = {conference}
}
The alarming rate of global mangrove forest degradation corroborates the need for providing fast, up-to-date and accurate mangrove maps. Conventional scene by scene image classification approach is inefficient and time consuming. The development of Google Earth Engine (GEE) provides a cloud platform to access and seamlessly process large amount of freely available satellite imagery. The GEE also provides a set of the state-of-the-art classifiers for pixel-based classification that can be used for mangrove mapping. This study is an initial effort which is aimed to combine machine learning and GEE for mapping mangrove extent. We used two Landsat 8 scenes over Agats and Timika Papua area as pilot images for this study; path 102 row 64 (2014/10/19) and path 103 row 63 (2013/05/16). The first image was used to develop local training areas for the machine learning classification, while the second one was used as a test image for GEE on the cloud. A total of 838 points samples were collected representing mangroves (244), non-mangroves (161), water bodies (311), and cloud (122) class. These training areas were used by support vector machine classifier in GEE to classify the first image. The classification result show mangrove objects could be efficiently delineated by this algorithm as confirmed by visual checking. This algorithm was then applied to the second image in GEE to check the consistency of the result. A simultaneous view of both classified images shows a corresponding pattern of mangrove forest, which mean the mangrove object has been consistently delineated by the algorithm. |
Hultera,; Prasetyo, Lilik B; Setiawan, Yudi Spatial Model Of The Deforestation Potential 2020 & 2024 And The Prevention Approach, Kutai Barat District Journal Article In: Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan, vol. 10, no. 2, pp. 294-306, 2020, ISSN: 2086-4639. @article{Hultera2020,
title = {Spatial Model Of The Deforestation Potential 2020 & 2024 And The Prevention Approach, Kutai Barat District},
author = {Hultera and Lilik B Prasetyo and Yudi Setiawan},
url = {https://journal.ipb.ac.id/index.php/jpsl/article/view/29821},
doi = {10.29244/jpsl.10.2.294-306},
issn = {2086-4639},
year = {2020},
date = {2020-07-03},
journal = {Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan},
volume = {10},
number = {2},
pages = {294-306},
abstract = {Kutai Barat have high forest cover and high deforestation rates. The study purpose to make spatial model, potential distribution of deforestation 2020 and 2024, analysis of the drivers of deforestation, compile and map the approach to reducing deforestation. Deforestation modeling done using MaxEnt and Zonation software. Deforestation sample data used from land cover maps 2009, 2013 and 2016. Deforestation rates used to estimate potential deforestation 2020 and 2024. The drivers of deforestation analyze from land cover change matrix. Prevention strategy approach by overlaying potential deforestation modeling results with RTRW maps. The model has good performance with AUC value 0.873. The validation show very good accuracy for the prediction of area to be deforested by 94%, the accuracy of the spatial distribution of the model 31%. Environmental variables have the highest contribution to the model is the distance from previous deforestation 37.4%. The potential of deforestation 2020 is 85,908 ha and 171,778 ha 2024. Oil palm, agriculture, rubber, HTI and mining are the driver of deforestation. Social forestry is expected to prevent potential deforestation 120,861 ha. Others expected programs to contribute to the deforestation reduction are community land intensification 30,316 ha and implementation of the HCV in plantation 20,120 ha.},
keywords = {deforestation},
pubstate = {published},
tppubtype = {article}
}
Kutai Barat have high forest cover and high deforestation rates. The study purpose to make spatial model, potential distribution of deforestation 2020 and 2024, analysis of the drivers of deforestation, compile and map the approach to reducing deforestation. Deforestation modeling done using MaxEnt and Zonation software. Deforestation sample data used from land cover maps 2009, 2013 and 2016. Deforestation rates used to estimate potential deforestation 2020 and 2024. The drivers of deforestation analyze from land cover change matrix. Prevention strategy approach by overlaying potential deforestation modeling results with RTRW maps. The model has good performance with AUC value 0.873. The validation show very good accuracy for the prediction of area to be deforested by 94%, the accuracy of the spatial distribution of the model 31%. Environmental variables have the highest contribution to the model is the distance from previous deforestation 37.4%. The potential of deforestation 2020 is 85,908 ha and 171,778 ha 2024. Oil palm, agriculture, rubber, HTI and mining are the driver of deforestation. Social forestry is expected to prevent potential deforestation 120,861 ha. Others expected programs to contribute to the deforestation reduction are community land intensification 30,316 ha and implementation of the HCV in plantation 20,120 ha. |
Sudhana, Sonny A; Sakti, Anjar D; Syahid, Luri N; Prasetyo, Lilik B; Irawan, Bambang; Kamal, Muhammad; Wikantika, Ketut Detecting mangrove deforestation using multi land use land cover change datasets: a comparative analysis in Southeast Asia Conference vol. 500, IOP Conf. Ser.: Earth Environ. Sci, 2020. @conference{Sudhana2020,
title = {Detecting mangrove deforestation using multi land use land cover change datasets: a comparative analysis in Southeast Asia},
author = {Sonny A Sudhana and Anjar D Sakti and Luri N Syahid and Lilik B Prasetyo and Bambang Irawan and Muhammad Kamal and Ketut Wikantika},
url = {https://iopscience.iop.org/article/10.1088/1755-1315/500/1/012014/meta},
doi = {10.1088/1755-1315/500/1/012014},
year = {2020},
date = {2020-06-01},
volume = {500},
publisher = {IOP Conf. Ser.: Earth Environ. Sci},
abstract = {Mangrove forest grows on tropical coastal areas and has an ecological role for its surrounding environment. Mangrove forest protects the coast from large waves and becomes a habitat for various marine fauna. It stores the highest densities of carbon among any other ecosystem globally. In Southeast Asia, Mangrove forest is highly biodiverse and contributes to the sustainability of the ecosystem. However, based on previous studies, mangrove forests are experiencing deforestation due to high demands of commodities and land use. In this study, we analyzed changes of land cover in Southeast Asia using several global land cover products produced between 2001 and 2012 and their correlation with mangrove deforestation based on Mangrove Forest Watch (CGMFC-21) data. LULC data products applied in this study were ESA CCI LC, MODIS LC, GlobCover. The analysis was carried out by calculating the rate of increase in mangrove deforestation and comparing it with changes in land cover that replaced the mangrove area temporally. The results of this study were land cover classes that replaced mangrove forest areas in the study period. Based on the results it could be concluded that the methods and products used influence the results. There are many sources of data products that might be used for future research, with other methods that are better so that they provide space for future research and development. Our study can be used as a consideration to implement policies that conserve mangrove forest across Southeast Asia.},
keywords = {deforestation, land cover change, mangrove},
pubstate = {published},
tppubtype = {conference}
}
Mangrove forest grows on tropical coastal areas and has an ecological role for its surrounding environment. Mangrove forest protects the coast from large waves and becomes a habitat for various marine fauna. It stores the highest densities of carbon among any other ecosystem globally. In Southeast Asia, Mangrove forest is highly biodiverse and contributes to the sustainability of the ecosystem. However, based on previous studies, mangrove forests are experiencing deforestation due to high demands of commodities and land use. In this study, we analyzed changes of land cover in Southeast Asia using several global land cover products produced between 2001 and 2012 and their correlation with mangrove deforestation based on Mangrove Forest Watch (CGMFC-21) data. LULC data products applied in this study were ESA CCI LC, MODIS LC, GlobCover. The analysis was carried out by calculating the rate of increase in mangrove deforestation and comparing it with changes in land cover that replaced the mangrove area temporally. The results of this study were land cover classes that replaced mangrove forest areas in the study period. Based on the results it could be concluded that the methods and products used influence the results. There are many sources of data products that might be used for future research, with other methods that are better so that they provide space for future research and development. Our study can be used as a consideration to implement policies that conserve mangrove forest across Southeast Asia. |
Syahidah, Tazkiyatul; Rizali, Akhmad; Prasetyo, Lilik B; Buchori, Damayanti Landscape composition alters parasitoid wasps but not their host diversity in tropical agricultural landscapes Journal Article In: Biodiversitas, vol. 21, no. 4, pp. 1702-1706, 2020. @article{Syahidah2020,
title = {Landscape composition alters parasitoid wasps but not their host diversity in tropical agricultural landscapes},
author = {Tazkiyatul Syahidah and Akhmad Rizali and Lilik B Prasetyo and Damayanti Buchori},
url = {https://smujo.id/biodiv/article/view/4718},
doi = {10.13057/biodiv/d210452},
year = {2020},
date = {2020-03-29},
journal = {Biodiversitas},
volume = {21},
number = {4},
pages = {1702-1706},
abstract = {The diversity of parasitoid wasps and their hosts in an agricultural landscape is affected by crop management and habitat conditions around crop fields. The composition of agricultural landscapes that are dominated by non-crop or natural habitats are assumed to be able to support the presence of parasitoid wasps as biological control of pests. The aim of this study was to investigate the effect of landscape composition on the diversity of parasitoid wasps and their hosts in agricultural landscapes. The research observations were conducted on six fields of long-bean cultivation located in Bogor District, West Java Province, Indonesia. Parasitoid wasps were collected by hand-collecting of their hosts (lepidopteran larvae) within 60 m distance transect to each long-bean field. In total, 17 species of parasitoid wasps and 12 species of lepidopteran larvae were found from all agricultural landscapes. A parasitoid wasp, Microplitis manilae was found in all long-bean fields (except Bantarjaya) and only parasitized the tobacco cutworm (Spodoptera litura). The tomato looper, Chrysodeixis chalcites had the highest associated parasitoids and was also parasitized by Braconidae sp5 which was also a parasitoid of S. litura. Based on the analysis results, the patch numbers of natural habitats had a positive effect on the diversity of parasitoid wasps and had no effect on the diversity of lepidopteran larvae. In conclusion, landscape compositions with patchy natural habitats have an important role to preserve beneficial insects and maintain ecosystem services in tropical agricultural landscapes.},
keywords = {parasitoid},
pubstate = {published},
tppubtype = {article}
}
The diversity of parasitoid wasps and their hosts in an agricultural landscape is affected by crop management and habitat conditions around crop fields. The composition of agricultural landscapes that are dominated by non-crop or natural habitats are assumed to be able to support the presence of parasitoid wasps as biological control of pests. The aim of this study was to investigate the effect of landscape composition on the diversity of parasitoid wasps and their hosts in agricultural landscapes. The research observations were conducted on six fields of long-bean cultivation located in Bogor District, West Java Province, Indonesia. Parasitoid wasps were collected by hand-collecting of their hosts (lepidopteran larvae) within 60 m distance transect to each long-bean field. In total, 17 species of parasitoid wasps and 12 species of lepidopteran larvae were found from all agricultural landscapes. A parasitoid wasp, Microplitis manilae was found in all long-bean fields (except Bantarjaya) and only parasitized the tobacco cutworm (Spodoptera litura). The tomato looper, Chrysodeixis chalcites had the highest associated parasitoids and was also parasitized by Braconidae sp5 which was also a parasitoid of S. litura. Based on the analysis results, the patch numbers of natural habitats had a positive effect on the diversity of parasitoid wasps and had no effect on the diversity of lepidopteran larvae. In conclusion, landscape compositions with patchy natural habitats have an important role to preserve beneficial insects and maintain ecosystem services in tropical agricultural landscapes. |
Putri, Anika; Kusrini, Mirza Dikari; Prasetyo, Lilik B Pemodelan Kesesuaian Habitat Katak Serasah (Leptobrachium hasseltii Tschudi 1838) dengan Sistem Informasi Geografis di Pulau Jawa Journal Article In: Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan, vol. 10, no. 1, pp. 12-24, 2020, ISBN: 2086-4639. @article{Putri2020,
title = {Pemodelan Kesesuaian Habitat Katak Serasah (Leptobrachium hasseltii Tschudi 1838) dengan Sistem Informasi Geografis di Pulau Jawa},
author = {Anika Putri and Mirza Dikari Kusrini and Lilik B Prasetyo},
url = {http://journal.ipb.ac.id/index.php/jpsl/article/view/21135},
doi = {10.29244/jpsl.10.1.12-24},
isbn = {2086-4639},
year = {2020},
date = {2020-03-20},
journal = {Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan},
volume = {10},
number = {1},
pages = {12-24},
abstract = {Hasselt’s litter frogs (Leptobrachium hasseltii Tschudi 1838) is a wide spread species in Java and Sumatra, but there is no specific distribution map for this species. The purpose of this study is to identify the distribution of hasselt’s litter frogs in Java and examine the suitability of it’s using maxent. We used presence data and environment variables consisting of elevation, slope, NDVI (Normalized Difference Vegetation Index), distance from the river, temperature, precipitation, and land cover to evelop the distribution model of this species. Hasselt’s litter frogs in Java depends on forested area with a wide range of elevation (lowland to mountain forests), moderate slope, temperature between 20-21 o C and rainfall over 2500 mm/year. The highest number of frogs are found in secondary forest land cover, as supported by NDVI values between 0.8 to 0.9 and relatively close to the river. Habitat model constructed are robust with AUC (Area Under Curve) value of 0.951. Environmental variables that most affectted habitat for hasselt’s litter frog are land cover, temperature, and slope.},
keywords = {katak, Leptobrachium hasseltii Tschudi 1838},
pubstate = {published},
tppubtype = {article}
}
Hasselt’s litter frogs (Leptobrachium hasseltii Tschudi 1838) is a wide spread species in Java and Sumatra, but there is no specific distribution map for this species. The purpose of this study is to identify the distribution of hasselt’s litter frogs in Java and examine the suitability of it’s using maxent. We used presence data and environment variables consisting of elevation, slope, NDVI (Normalized Difference Vegetation Index), distance from the river, temperature, precipitation, and land cover to evelop the distribution model of this species. Hasselt’s litter frogs in Java depends on forested area with a wide range of elevation (lowland to mountain forests), moderate slope, temperature between 20-21 o C and rainfall over 2500 mm/year. The highest number of frogs are found in secondary forest land cover, as supported by NDVI values between 0.8 to 0.9 and relatively close to the river. Habitat model constructed are robust with AUC (Area Under Curve) value of 0.951. Environmental variables that most affectted habitat for hasselt’s litter frog are land cover, temperature, and slope. |
2019
|
Rudianto, Yoga; Prasetyo, Lilik B; Setiawan, Yudi; Hudjimartsu, Sahid A Canopy cover estimation of agroforestry based on airborne LiDAR and Landsat 8 OLI Conference vol. 11372, SPIE, 2019. @conference{Rudianto2019,
title = {Canopy cover estimation of agroforestry based on airborne LiDAR and Landsat 8 OLI},
author = {Yoga Rudianto and Lilik B Prasetyo and Yudi Setiawan and Sahid A Hudjimartsu},
url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11372/2541549/Canopy-cover-estimation-of-agroforestry-based-on-airborne-LiDAR-and/10.1117/12.2541549.short},
doi = {10.1117/12.2541549},
year = {2019},
date = {2019-12-28},
volume = {11372},
publisher = {SPIE},
abstract = {Agroforestry/mixed gardens is a land management system that combines agricultural, livestock production with tree to obtain various products in a sustainable manner so as to increase social, economic and environmental benefits This system can be a form of mitigation and adaptation to global climate change, especially in areas with high population densities, but with less agricultural labor, such as in urban fringe area. Based on the formal definition of forests from the Indonesian Ministry of Environment and Forestry of Indonesia based on canopy cover, agroforestry might be considered as forest, whereas the canopy cover >30%. The research aim to estimate canopy cover base on integration of Lidar and Landsat 8 OLI of agroforestry in the Cidanau watershed. The most suitable equation model is an exponential equation (FRCI = 22.928e (-80.439 * 'RED')), however, some underestimation in high canopy cover ( >70%) and underestimation in low canopy cover (< 60%) should be anticipated. The result showed that agroforestry in some location have canopy cover greater than 30% and therefore it can be considered as a forest.},
keywords = {agroforestry, canopy cover, Landsat, LiDAR},
pubstate = {published},
tppubtype = {conference}
}
Agroforestry/mixed gardens is a land management system that combines agricultural, livestock production with tree to obtain various products in a sustainable manner so as to increase social, economic and environmental benefits This system can be a form of mitigation and adaptation to global climate change, especially in areas with high population densities, but with less agricultural labor, such as in urban fringe area. Based on the formal definition of forests from the Indonesian Ministry of Environment and Forestry of Indonesia based on canopy cover, agroforestry might be considered as forest, whereas the canopy cover >30%. The research aim to estimate canopy cover base on integration of Lidar and Landsat 8 OLI of agroforestry in the Cidanau watershed. The most suitable equation model is an exponential equation (FRCI = 22.928e (-80.439 * 'RED')), however, some underestimation in high canopy cover ( >70%) and underestimation in low canopy cover (< 60%) should be anticipated. The result showed that agroforestry in some location have canopy cover greater than 30% and therefore it can be considered as a forest. |
Condro, Aryo Adhi; Prasetyo, Lilik B; Rushayati, Siti Badriyah Short-term projection of Bornean orangutan spatial distribution based on climate and land cover change scenario Conference vol. 11372, SPIE, 2019. @conference{Condro2019,
title = {Short-term projection of Bornean orangutan spatial distribution based on climate and land cover change scenario},
author = {Aryo Adhi Condro and Lilik B Prasetyo and Siti Badriyah Rushayati},
url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11372/113721B/Short-term-projection-of-Bornean-orangutan-spatial-distribution-based-on/10.1117/12.2541633.short},
doi = {10.1117/12.2541633},
year = {2019},
date = {2019-12-28},
volume = {11372},
publisher = {SPIE},
abstract = {Primates, the closest living biological relatives with human, play the important roles in the livelihoods, human-health, and ecosystem services. In the Anthropocene, populations of 75% of primate species are decreasing globally – due to cultivation activities, logging harvesting, hunting, and climate change. In this study, we focus on Bornean orangutan (Pongo pygmaeus) as the global conservation icons. Hence, understanding Bornean orangutan’s distribution dynamics is crucial regarding to conservation and climate mitigation strategies. The objectives of this study are: (1) to predict current and future spatial distribution of orangutan in Borneo using pessimistic climate model and land cover projection as well; (2) to identify spatial dynamics of Bornean orangutan distribution due to climate and land cover change in 2030. Species distribution modelling of baseline and future scenario was performed using logistic regression model. Land cover categories and climate parameters (i.e. annual temperature and precipitation) were used for model predictors. Presence points of observed primate species were retrieved from Ministry of Environment and Forestry Indonesia (MoEF). We used WorldClim v2.0 annual temperature and precipitation data for the baseline and CMIP5 MIROC-ESM model RCP8.5 2030 for the future climate scenario. We performed cellular automata algorithm to retrieve 2030 projected land-use for the future. Distance to road and distance to selected important land covers were used for transition potential modelling of land cover projection. Generally, the prediction shows that suitable habitat of Bornean orangutan will decrease in 2030. However, we found the gain of suitable area of Bornean orangutan. Findings of this study should support the identification of priority conservation area of Bornean orangutan for the future and wildlife corridor management planning.},
keywords = {orangutan},
pubstate = {published},
tppubtype = {conference}
}
Primates, the closest living biological relatives with human, play the important roles in the livelihoods, human-health, and ecosystem services. In the Anthropocene, populations of 75% of primate species are decreasing globally – due to cultivation activities, logging harvesting, hunting, and climate change. In this study, we focus on Bornean orangutan (Pongo pygmaeus) as the global conservation icons. Hence, understanding Bornean orangutan’s distribution dynamics is crucial regarding to conservation and climate mitigation strategies. The objectives of this study are: (1) to predict current and future spatial distribution of orangutan in Borneo using pessimistic climate model and land cover projection as well; (2) to identify spatial dynamics of Bornean orangutan distribution due to climate and land cover change in 2030. Species distribution modelling of baseline and future scenario was performed using logistic regression model. Land cover categories and climate parameters (i.e. annual temperature and precipitation) were used for model predictors. Presence points of observed primate species were retrieved from Ministry of Environment and Forestry Indonesia (MoEF). We used WorldClim v2.0 annual temperature and precipitation data for the baseline and CMIP5 MIROC-ESM model RCP8.5 2030 for the future climate scenario. We performed cellular automata algorithm to retrieve 2030 projected land-use for the future. Distance to road and distance to selected important land covers were used for transition potential modelling of land cover projection. Generally, the prediction shows that suitable habitat of Bornean orangutan will decrease in 2030. However, we found the gain of suitable area of Bornean orangutan. Findings of this study should support the identification of priority conservation area of Bornean orangutan for the future and wildlife corridor management planning. |
Prasetyo, Lilik B; Nursal, Wim I; Setiawan, Yudi; Rudianto, Yoga; Wikantika, Ketut; Irawan, Bambang Canopy cover of mangrove estimation based on airborne LIDAR & Landsat 8 OLI Conference vol. 335, IOP Conf. Ser.: Earth Environ. Sci, 2019. @conference{Prasetyo2019,
title = {Canopy cover of mangrove estimation based on airborne LIDAR & Landsat 8 OLI},
author = {Lilik B Prasetyo and Wim I Nursal and Yudi Setiawan and Yoga Rudianto and Ketut Wikantika and Bambang Irawan},
url = {https://iopscience.iop.org/article/10.1088/1755-1315/335/1/012029},
doi = {10.1088/1755-1315/335/1/012029},
year = {2019},
date = {2019-10-28},
volume = {335},
publisher = {IOP Conf. Ser.: Earth Environ. Sci},
abstract = {Mangroves are very important ecosystems, because of their economic value and environmental services, including as a habitat for various wildlife species, storing carbon, and protecting land from sea abrasion. Indonesia is known to have large mangrove area and diversity. It is estimated that the area of mangroves in Indonesia in 2015 reached about 3 million hectares, with 15 families, 18 genera, 41 true mangrove species and 116 species of mangrove associations. Unfortunately, the area to continue to decline due to degradation and conversion to other land uses, especially ponds and built up areas. Usually, mangrove degradation assessment is carried out by field survey and relying on Normalized Difference Vegetation Index (NDVI) clustering derived from satellite image data. Field surveys require a large amount of time and cost, meanwhile NDVI clustering is either inaccurate or too rough. Therefore, exploration of another methods are needed. Our result showed that pixel value of Band 5, Band 6, NDVI and PC1 can be used to estimate canopy cover. Regression using quadratic equation is better than linear equations. However, we noticed limitations of optical Landsat 8 OLI data for canopy cover mapping, namely pixel saturation on high canopy cover and high pixel value of bush/shrubs/regrowth that was not always representing high canopy cover.},
keywords = {canopy cover, Landsat, LiDAR, mangrove},
pubstate = {published},
tppubtype = {conference}
}
Mangroves are very important ecosystems, because of their economic value and environmental services, including as a habitat for various wildlife species, storing carbon, and protecting land from sea abrasion. Indonesia is known to have large mangrove area and diversity. It is estimated that the area of mangroves in Indonesia in 2015 reached about 3 million hectares, with 15 families, 18 genera, 41 true mangrove species and 116 species of mangrove associations. Unfortunately, the area to continue to decline due to degradation and conversion to other land uses, especially ponds and built up areas. Usually, mangrove degradation assessment is carried out by field survey and relying on Normalized Difference Vegetation Index (NDVI) clustering derived from satellite image data. Field surveys require a large amount of time and cost, meanwhile NDVI clustering is either inaccurate or too rough. Therefore, exploration of another methods are needed. Our result showed that pixel value of Band 5, Band 6, NDVI and PC1 can be used to estimate canopy cover. Regression using quadratic equation is better than linear equations. However, we noticed limitations of optical Landsat 8 OLI data for canopy cover mapping, namely pixel saturation on high canopy cover and high pixel value of bush/shrubs/regrowth that was not always representing high canopy cover. |
Khairiah, Rahmi Nur; Prasetyo, Lilik B; Setiawan, Yudi Agroforestry tree density estimation based on hemispherical photos & Landsat 8 OLI/TIRS image: A case study at Cidanau watershed, Banten-Indonesia Conference Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., 2019. @conference{Khairiah2019,
title = {Agroforestry tree density estimation based on hemispherical photos & Landsat 8 OLI/TIRS image: A case study at Cidanau watershed, Banten-Indonesia},
author = {Rahmi Nur Khairiah and Lilik B Prasetyo and Yudi Setiawan},
url = {https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-3-W7/33/2019/},
doi = {10.5194/isprs-archives-XLII-3-W7-33-2019},
year = {2019},
date = {2019-03-01},
publisher = {Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.},
abstract = {The Cidanau watershed is the only watershed in Indonesia that implements Payment for Environmental Services (PES) for farmers who can maintain tree/stand density of 500 trees/hectare on their land. Payments are made upon the verification on the field by the project supervisor. This method requires a lot of time and costly, so it is necessary to build more efficient indirect methods, including using satellite imagery or camera data. The aim of this study is to understand Landsat OLI 8 and hemispherical photo can estimate tree density in the farmer’s agroforestry stand. To obtain tree density, the number of trees with diameter more than 10 cm in 50 plots (50 m x 50 m) were counted. Some predictor variables were utilized, such as Leaf Area Index (LAI) based on hemispherical photos, Normalized Difference Vegetation Index (NDVI), Forest Cover Density (FCD), as well as NDVI and FCD which were enhanced with topographic correction. The imagery used was Landsat 8 OLI acquired on July 5, 2015, with Path/Row 123/64. The relationship between tree density and predictor variables was done using linear regression analysis. Prior to regression analysis, normality (Kolmogorov Smirnov/K-S), heteroscedasticity (Glejser test) and auto correlation (Durbin Watson) test were performed. The results of the analysis showed that tree density was estimated better with hemispherical photos-based LAI, with determination coefficient of 80.6%. Meanwhile, estimation using NDVI and FCD has lower determination coefficient. Even though, the use of topographic correction had been able to increase the determination coefficient of the regression relationship between tree density and FCD, from 4.64% to 35.18%.},
keywords = {agroforestry, CidanauLandsat, hemispherical photos},
pubstate = {published},
tppubtype = {conference}
}
The Cidanau watershed is the only watershed in Indonesia that implements Payment for Environmental Services (PES) for farmers who can maintain tree/stand density of 500 trees/hectare on their land. Payments are made upon the verification on the field by the project supervisor. This method requires a lot of time and costly, so it is necessary to build more efficient indirect methods, including using satellite imagery or camera data. The aim of this study is to understand Landsat OLI 8 and hemispherical photo can estimate tree density in the farmer’s agroforestry stand. To obtain tree density, the number of trees with diameter more than 10 cm in 50 plots (50 m x 50 m) were counted. Some predictor variables were utilized, such as Leaf Area Index (LAI) based on hemispherical photos, Normalized Difference Vegetation Index (NDVI), Forest Cover Density (FCD), as well as NDVI and FCD which were enhanced with topographic correction. The imagery used was Landsat 8 OLI acquired on July 5, 2015, with Path/Row 123/64. The relationship between tree density and predictor variables was done using linear regression analysis. Prior to regression analysis, normality (Kolmogorov Smirnov/K-S), heteroscedasticity (Glejser test) and auto correlation (Durbin Watson) test were performed. The results of the analysis showed that tree density was estimated better with hemispherical photos-based LAI, with determination coefficient of 80.6%. Meanwhile, estimation using NDVI and FCD has lower determination coefficient. Even though, the use of topographic correction had been able to increase the determination coefficient of the regression relationship between tree density and FCD, from 4.64% to 35.18%. |
Sujaswara, Azwar A; Setiawan, Yudi; Prasetyo, Lilik B; Hudjimartsu, Sahid A; Wijayanto, Arif K Utilization of UAV technology for vegetation cover mapping using object based image analysis in restoration area of Gunung Halimun Salak National Park, Indonesia Proceedings Article In: Sixth International Symposium on LAPAN-IPB Satellite, pp. 1137221, International Society for Optics and Photonics 2019. @inproceedings{sujaswara2019utilization,
title = {Utilization of UAV technology for vegetation cover mapping using object based image analysis in restoration area of Gunung Halimun Salak National Park, Indonesia},
author = {Azwar A Sujaswara and Yudi Setiawan and Lilik B Prasetyo and Sahid A Hudjimartsu and Arif K Wijayanto},
url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11372/1137221/Utilization-of-UAV-technology-for-vegetation-cover-mapping-using-object/10.1117/12.2540566.short},
doi = {10.1117/12.2540566},
year = {2019},
date = {2019-01-01},
booktitle = {Sixth International Symposium on LAPAN-IPB Satellite},
volume = {11372},
pages = {1137221},
organization = {International Society for Optics and Photonics},
abstract = {Halimun Salak Corridor (HSC) is an important area that connects the Mount Halimun and Mount Salak, and has important role of animals movements. As the corridor have become degraded over the last ten years, ecosystem restoration action is required. In order to monitor that restoration program, then, it is necessary to mapping the vegetation cover in the corridor. Unmanned Aerial Vehicle (UAV) technology is an alternative technology that can be used to provide a detail vegetation cover map based on a high resolution image. This research aim to mapping vegetation cover based on a combination of structural characteristics of height and vegetation indices by using Object Based Image Analysis (OBIA) method. Structural characteristics was defined from the canopy height model (CHM) using the Structure from Motion (SfM) method, meanwhile, several spectral indices (NDVI, NDWI, and SAVI) were produced from multispectral images. We applied Object Based Image Analysis (OBIA) to classify vegetation cover based on their structure and spectral characteristics. The results shown that the most dominant vegetation cover is the tree class, which is 70.74 ha (77.31 % of the 91.5 ha mapped area) and accuracy test revealed 73.11% of overall accuracy.},
keywords = {UAV},
pubstate = {published},
tppubtype = {inproceedings}
}
Halimun Salak Corridor (HSC) is an important area that connects the Mount Halimun and Mount Salak, and has important role of animals movements. As the corridor have become degraded over the last ten years, ecosystem restoration action is required. In order to monitor that restoration program, then, it is necessary to mapping the vegetation cover in the corridor. Unmanned Aerial Vehicle (UAV) technology is an alternative technology that can be used to provide a detail vegetation cover map based on a high resolution image. This research aim to mapping vegetation cover based on a combination of structural characteristics of height and vegetation indices by using Object Based Image Analysis (OBIA) method. Structural characteristics was defined from the canopy height model (CHM) using the Structure from Motion (SfM) method, meanwhile, several spectral indices (NDVI, NDWI, and SAVI) were produced from multispectral images. We applied Object Based Image Analysis (OBIA) to classify vegetation cover based on their structure and spectral characteristics. The results shown that the most dominant vegetation cover is the tree class, which is 70.74 ha (77.31 % of the 91.5 ha mapped area) and accuracy test revealed 73.11% of overall accuracy. |
Arai, Kohei; Hasbi, Wahyudi; Syafrudin, A Hadi; Hakim, Patria Rachman; Salaswati, Sartika; Prasetyo, Lilik B; Setiawan, Yudi Method for Uncertainty Evaluation of Vicarious Calibration of Spaceborne Visible to Near Infrared Radiometers Journal Article In: International Journal of Advanced Computer Science and Applications, vol. 10, no. 1, pp. 387-393, 2019. @article{Arai2019,
title = {Method for Uncertainty Evaluation of Vicarious Calibration of Spaceborne Visible to Near Infrared Radiometers},
author = {Kohei Arai and Wahyudi Hasbi and A Hadi Syafrudin and Patria Rachman Hakim and Sartika Salaswati and Lilik B Prasetyo and Yudi Setiawan},
url = {https://thesai.org/Publications/ViewPaper?Volume=10&Issue=1&Code=ijacsa&SerialNo=51},
doi = {10.14569/IJACSA.2019.0100151},
year = {2019},
date = {2019-01-01},
journal = {International Journal of Advanced Computer Science and Applications},
volume = {10},
number = {1},
pages = {387-393},
abstract = {A method for uncertainty evaluation of vicarious calibration for solar reflection channels (visible to near infrared) of spaceborne radiometers is proposed. Reflectance based at sensor radiance estimation method for solar reflection channels of radiometers onboard remote sensing satellites is also proposed. One of examples for vicarious calibration of LISA: Line Imager Space Application onboard LISAT: LAPAN-IPB Satellite is described. Through the preliminary analysis, it is found that the proposed uncertainty evaluation method is appropriate. Also, it is found that percent difference between DN: Digital Number derived radiance and estimated TOA: Top of the Atmosphere radiance (at sensor radiance) ranges from 3.5 to 9.6 %. It is also found that the percent difference at shorter wavelength (Blue) is greater than that of longer wavelength (Near Infrared: NIR). In comparison to those facts to those of Terra/ASTER/VNIR, it is natural and reasonable.},
keywords = {Field experiment, image quality evaluation, vicarious calibration},
pubstate = {published},
tppubtype = {article}
}
A method for uncertainty evaluation of vicarious calibration for solar reflection channels (visible to near infrared) of spaceborne radiometers is proposed. Reflectance based at sensor radiance estimation method for solar reflection channels of radiometers onboard remote sensing satellites is also proposed. One of examples for vicarious calibration of LISA: Line Imager Space Application onboard LISAT: LAPAN-IPB Satellite is described. Through the preliminary analysis, it is found that the proposed uncertainty evaluation method is appropriate. Also, it is found that percent difference between DN: Digital Number derived radiance and estimated TOA: Top of the Atmosphere radiance (at sensor radiance) ranges from 3.5 to 9.6 %. It is also found that the percent difference at shorter wavelength (Blue) is greater than that of longer wavelength (Near Infrared: NIR). In comparison to those facts to those of Terra/ASTER/VNIR, it is natural and reasonable. |
2018
|
Setiawan, Yudi; Prasetyo, Lilik B; Pawitan, Hidayat; Liyantono, Liyantono; Syartinilia, Syartinilia; Wijayanto, Arif K; Permatasari, Prita A; Syafrudin, Hadi A; Hakim, Patria R Pemanfaatan Fusi Data Satelit Lapan-a3/IPB dan Landsat 8 Untuk Monitoring Lahan Sawah Journal Article In: Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management), vol. 8, no. 1, pp. 67–76, 2018, ISSN: 2460-5824. @article{setiawan2018pemanfaatan,
title = {Pemanfaatan Fusi Data Satelit Lapan-a3/IPB dan Landsat 8 Untuk Monitoring Lahan Sawah},
author = {Yudi Setiawan and Lilik B Prasetyo and Hidayat Pawitan and Liyantono Liyantono and Syartinilia Syartinilia and Arif K Wijayanto and Prita A Permatasari and Hadi A Syafrudin and Patria R Hakim},
url = {https://journal.ipb.ac.id/index.php/jpsl/article/view/19754},
doi = {10.29244/jpsl.8.1.67-76},
issn = {2460-5824},
year = {2018},
date = {2018-01-01},
journal = {Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management)},
volume = {8},
number = {1},
pages = {67--76},
abstract = {Increasing of economic development is generally followed by the change of landuse from agriculture to other function. If it occurs in large frequency and amount, it will threaten national food security. Therefore, it is necessary to monitor the agricultural land, especially paddy fields regarding to changes in landuse and global climate. Utilization and development of satellite technology is necessary to provide more accurate and independent database for agricultural land monitoring, especially paddy fields. This study aims to develop a utilization model for LAPAN-IPB satellite (LISAT) and other several satellites data that have been used for paddy field monitoring. This research is conducted through 2 stages: 1) Characterization LISAT satellite data to know spectral variation of paddy field, and 2) Development method of LISAT data fusion with other satellites for paddy field mapping. Based on the research results, the characteristics Red and NIR band in LISAT data imagery have a good correlation with Red and NIR band in LANDSAT 8 OLI data imagery, especially to detect paddy field in the vegetative phase, compared to other bands. Observation and measurement of spectral values using spectroradiometer need to be conducted periodically (starting from first planting season) to know the dynamics of the change related to the growth phase of paddy in paddy field. Pre-processing of image data needs to be conducted to obtain better LISAT data characterization results. Furthermore, it is necessary to develop appropriate algorithms or methods for geometric correction as well as atmospheric correction of LISAT data.},
keywords = {Landsat, LAPAN},
pubstate = {published},
tppubtype = {article}
}
Increasing of economic development is generally followed by the change of landuse from agriculture to other function. If it occurs in large frequency and amount, it will threaten national food security. Therefore, it is necessary to monitor the agricultural land, especially paddy fields regarding to changes in landuse and global climate. Utilization and development of satellite technology is necessary to provide more accurate and independent database for agricultural land monitoring, especially paddy fields. This study aims to develop a utilization model for LAPAN-IPB satellite (LISAT) and other several satellites data that have been used for paddy field monitoring. This research is conducted through 2 stages: 1) Characterization LISAT satellite data to know spectral variation of paddy field, and 2) Development method of LISAT data fusion with other satellites for paddy field mapping. Based on the research results, the characteristics Red and NIR band in LISAT data imagery have a good correlation with Red and NIR band in LANDSAT 8 OLI data imagery, especially to detect paddy field in the vegetative phase, compared to other bands. Observation and measurement of spectral values using spectroradiometer need to be conducted periodically (starting from first planting season) to know the dynamics of the change related to the growth phase of paddy in paddy field. Pre-processing of image data needs to be conducted to obtain better LISAT data characterization results. Furthermore, it is necessary to develop appropriate algorithms or methods for geometric correction as well as atmospheric correction of LISAT data. |
