A5039869039- Oil Palm Production and Sustainability
- Peatlands and Wetlands Ecology
- Soil Carbon and Nitrogen Dynamics
- Soil erosion and sediment transport
- Fire effects on ecosystems
- Plant Growth and Agriculture Techniques
- Conservation, Biodiversity, and Resource Management
- Agricultural and Environmental Management
- Agricultural Development and Management
- Hydrology and Watershed Management Studies
- Coastal wetland ecosystem dynamics
- Soil and Land Suitability Analysis
- Rice Cultivation and Yield Improvement
- Biofuel production and bioconversion
- Biodiesel Production and Applications
- Groundwater and Watershed Analysis
- Crop Yield and Soil Fertility
- Climate change impacts on agriculture
- Hydrology and Sediment Transport Processes
- Water and Land Management
- Food and Agricultural Sciences
- Forest Ecology and Conservation
- Geotechnical and construction materials studies
- Atmospheric and Environmental Gas Dynamics
- Soil Geostatistics and Mapping
National Research and Innovation Agency
2023-2024
National Nuclear Energy Agency of Indonesia
2024
Tenaga Nasional Berhad (Malaysia)
2023
Indonesian Agency for Agricultural Research and Development
2008-2022
ANA Aeroportos de Portugal (Portugal)
2022
Government of the United States of America
2022
IPB University
2022
Ministry of Agriculture
2013-2020
Universitas WR Supratman
2019
Universitas Gadjah Mada
2018
Abstract Southeast Asia is a major rice-producing region with high level of internal consumption and accounting for 40% global rice exports. Limited land resources, climate change yield stagnation during recent years have once again raised concerns about the capacity to remain as large net exporter. Here we use modelling approach map gaps assess production potential exports by 2040. We find that average gap represents 48% estimate region, but there are substantial differences among...
Abstract Tropical peatlands are a known source of methane (CH 4 ) to the atmosphere, but their contribution atmospheric CH is poorly constrained. Since 1980s, extensive areas in Southeast Asia have experienced land‐cover change smallholder agriculture and forest plantations. This generally involves lowering groundwater level (GWL), as well modification vegetation type, both which potentially influence emissions. We measured exchanges at landscape scale using eddy covariance towers over two...
Tropical peatlands cycle and store large amounts of carbon in their soil biomass1-5. Climate land-use change alters greenhouse gas (GHG) fluxes tropical peatlands, but the magnitude these changes remains highly uncertain6-19. Here we measure net ecosystem exchanges dioxide, methane nitrous oxide between October 2016 May 2022 from Acacia crassicarpa plantation, degraded forest intact within same peat landscape, representing land-cover-change trajectories Sumatra, Indonesia. This allows us to...
Palm oil production is a major source of income for millions smallholders in Indonesia. However, actual yield remains low relation to the attainable yield. While emphasis has been given planting material as factor explaining smallholder fields, role agronomic management received less attention. We assessed palm productivity independent fields quantified gaps and their causes using data on fresh fruit bunch (FFB) practices collected over two years across 977 fields. The gap was estimated each...
Land-based emissions of carbon dioxide derive from the interface forest and agriculture. Emission estimates require harmonization across non-forest data sources. Furthermore, emission reduction requires understanding linked causes policy levers between agriculture forestry. The institutional forestry traditions dominated emergence discourse on Reducing Emissions Deforestation Degradation (REDD+) while more holistic perspectives land-based emissions, including agriculture, found a home in...
The Indonesian government committed to restoring over 2 million ha of degraded peatland by the end 2020, mainly reduce peat fires and greenhouse gas emissions. Although it is unlikely will meet this target, restoration projects are still underway. One strategy involves blocking drainage canals, but consequences for smallholder farmers whose livelihoods dependent on agriculture unclear. This paper investigates perceived impacts canal blocks identifies factors that affect their willingness...
Smallholders account for ca. 40% of oil palm area in Indonesia but average yield remains low. Despite higher overall fertilizer use compared with other Southeast Asian countries, poor plant nutrition has been identified as a major factor explaining gaps smallholder fields and little is known about the underlying management drivers. To assess nutrient identify entry points to narrow existing gap via improved nutrition. We assessed balances nitrogen (N), phosphorous (P), potassium (K),...
Indonesia is the most important oil palm producing country. Nearly 40% of planted area managed by smallholders, with yields well below potential. Efforts to increase productivity have focused on source planting material, little attention paid plant nutrition. To assess degree which current in smallholder fields limited nutrients scenarios distinct sources material. We collected detailed data leaf nutrient concentration from 30 derive minimum sampling size needed diagnose status....
Tropical peatlands are known not only for their high, area-based, carbon emissions in response to land-use change but also as hot spots of debate about associated data uncertainties. Perspectives still evolving on factors underlying the variability and uncertainty. Debate includes ways reducing through rewetting, reforestation agroforestry. A knowledge value-chain that is long complex links (a) fundamental understanding peat peatland processes leading sciencebased quantification default...
Abstract The recent availability of high spatial and temporal resolution optical radar satellite imagery has dramatically increased opportunities for mapping land cover at fine scales. Fusion images been found useful in tropical areas affected by cloud because their complementarity. However, the multitemporal dimension these data now offer is often neglected are primarily characterized relatively low levels seasonality consideration requires more processing time. Hence, regions based on...
<p>Arable land availability for agricultural extensification is a determining factor to achieve Indonesia’s food self-sufficiency and become the world supplier in 2045. This study aimed evaluate reserves future development. Spatial analysis was conducted using cover map, peatland distribution indicative map of suspension new permits, forest status licensing use recommendation map. The assumed be potentially available should (i) idle covered by shrub as well bare land, (ii)...
Ecological restoration is considered to play an important role in mitigating climate change, protecting biodiversity, and preventing environmental degradation. Yet, there are often multiple perspectives on what outcomes should be aiming achieve, how we get that point. In this study interview a range of policymakers, academics, non‐governmental organization (NGO) representatives explore the Indonesia's tropical peatlands—key global ecosystems have undergone large‐scale Thematic analysis...
Urbanization has appropriated millions of hectares cropland, and this trend will persist as cities continue to expand. We estimate the impact conversion amount land needed elsewhere give same yield potential determined by differences in climate soil properties. Robust spatial upscaling techniques, well-validated crop simulation models, soil, climate, cropping system databases are employed with a focus on populous countries high rates conversion. find that converted cropland is 30-40% more...