A5065103671- Soil Carbon and Nitrogen Dynamics
- Conservation, Biodiversity, and Resource Management
- Peatlands and Wetlands Ecology
- Forest Management and Policy
- Atmospheric and Environmental Gas Dynamics
- Fire effects on ecosystems
- Oil Palm Production and Sustainability
- Soil and Water Nutrient Dynamics
- Forest ecology and management
- Rangeland Management and Livestock Ecology
- Biofuel production and bioconversion
- Climate Change Policy and Economics
- Biodiesel Production and Applications
- Remote Sensing and LiDAR Applications
- Coastal wetland ecosystem dynamics
- Agriculture Sustainability and Environmental Impact
- Land Use and Ecosystem Services
- Agriculture and Rural Development Research
- Energy and Environment Impacts
- Bioenergy crop production and management
- Soil erosion and sediment transport
- Economic and Environmental Valuation
- Soil and Unsaturated Flow
- Global Energy and Sustainability Research
- Hydrology and Watershed Management Studies
International Center for Tropical Agriculture
2016-2024
World Agroforestry Centre
2004-2023
Bioversity International
2020-2023
Columbia University
2010-2022
Digital Research Alliance of Canada
2021
Center for International Forestry Research
2010-2019
Earth Island Institute
2015-2017
International Center for Tropical Agriculture
2004-2017
Cornell University
2012
University of British Columbia
2012
Countries are encouraged to identify drivers of deforestation and forest degradation in the development national strategies action plans for REDD+. In this letter we provide an assessment proximate by synthesizing empirical data reported countries as part their REDD+ readiness activities, CIFOR country profiles, UNFCCC communications scientific literature. Based on rate remaining cover 100 (sub)tropical non-Annex I were grouped into four transition phases. Driver 46 summarized each phase...
I nve s ti ga tors from many diverse disciplines-agron o- m i t , a tm o ph eric ch em eco l
Methane uptake by soils is a small but important flux in the global budget of atmospheric methane, and could be susceptible to changes land use climate. Estimates this sink vary between 20 45 Tg yr −1 . We propose develop better constrained estimate using mechanistic understanding biogeochemical controls soil CH 4 uptake. reviewed over 120 published papers reporting field measurements made 318 annual estimates for various types ecosystems. collected data from these number parameters that are...
Abstract The role of soil organic carbon in global cycles is receiving increasing attention both as a potentially large and uncertain source CO 2 emissions response to predicted temperature rises, natural sink for able reduce atmospheric . There general agreement that the technical potential sequestration significant, some consensus on magnitude potential. Croplands worldwide could sequester between 0.90 1.85 Pg C/yr, i.e. 26–53% target “4p1000 Initiative: Soils Food Security Climate”....
Wetlands are important providers of ecosystem services and key regulators climate change. They positively contribute to global warming through their greenhouse gas emissions, negatively the accumulation organic material in histosols, particularly peatlands. Our understanding wetlands' is currently constrained by limited knowledge on distribution, extent, volume, interannual flood variability disturbance levels. We present an expert system approach estimate wetland peatland areas, depths...
Abstract Trans-boundary haze events in Southeast Asia are associated with large forest and peatland fires Indonesia. These episodes of extreme air pollution usually occur during drought years induced by climate anomalies from the Pacific (El Niño Southern Oscillation) Indian Oceans (Indian Ocean Dipole). However, June 2013 – a non-drought year Singapore's 24-hr Pollutants Standards Index reached an all-time record 246 (rated “very unhealthy”). Here, we show using remote sensing, rainfall...
More than 100 countries pledged to reduce agricultural greenhouse gas (GHG) emissions in the 2015 Paris Agreement of United Nations Framework Convention on Climate Change. Yet technical information about how much mitigation is needed sector vs. feasible remains poor. We identify a preliminary global target for reducing from agriculture ~1 GtCO2 e yr-1 by 2030 limit warming 2100 2 °C above pre-industrial levels. plausible development pathways with cobenefits deliver only 21-40% mitigation....
Land use change in South America, mainly deforestation, is a large source of anthropogenic CO2 emissions. Identifying and addressing the causes or drivers forest considered crucial for global climate mitigation. Few countries however, monitor deforestation systematic manner. National-level quantitative spatially explicit information on often lacking. This study quantifies proximate related carbon losses America based remote sensing time series systematic, Deforestation areas were derived...
Monitoring of forest cover and functions provides information necessary to support policies decisions conserve, protect sustainably manage forests. Especially in the tropics where forests are declining at a rapid rate, national monitoring systems capable reliably estimating cover, change carbon stock vital importance. As large number tropical countries had limited capacity past implement such system, building efforts now ongoing strengthen technical political skillsets institutional levels....
Climate policy has thus far focused solely on carbon stocks and sequestration to evaluate the potential of forests mitigate global warming. These factors are used assess impacts different drivers deforestation forest degradation as well alternative management. However, when cover, structure composition change, shifts in biophysical processes (the water energy balances) may enhance or diminish climate effects released from aboveground biomass. The net impact determines outcomes for...
The objectives of this study were (1) to determine the effects land use change on N oxide fluxes from soil in seasonally dry, eastern Amazonia and (2) evaluate “hole‐in‐the‐pipe” model a field setting where availability varies among uses moisture seasons. We measured flux an old‐growth forest, 20‐year‐old secondary active pasture, degraded pasture. also water content, inorganic stocks, net mineralization nitrification potential. To pasture age flux, we gas at chronosequence pastures (0‐13...
Abstract Anthropogenic perturbations have profoundly modified the Earth's biogeochemical cycles, most prominent of these changes being manifested by global carbon (C) cycling. We investigated long‐term effects human‐induced land‐use and land‐cover from native tropical forest (Kenya) subtropical grassland (South Africa) ecosystems to agriculture on dynamics structural composition soil organic C (SOC) using elemental analysis integrated 13 nuclear magnetic resonance (NMR), near‐edge X‐ray...
Abstract Jatropha curcas is a multipurpose, drought‐resistant, biofuel tree originating from Central and South America, but now growing pantropic. The produces seeds containing 27–40% inedible oil, which easily convertible into biodiesel. Although even some basic agronomic characteristics of J. are not yet fully under‐s‐tood, the plant enjoys booming interest, may hold risk unsustainable practice. Our qualitative sustainability assessment, focusing on environmental impacts strengthened by...