A5049970140- Water Quality and Pollution Assessment
- Geography and Environmental Studies
- Soil erosion and sediment transport
- Soil and Water Nutrient Dynamics
- Hydrology and Watershed Management Studies
- Atmospheric and Environmental Gas Dynamics
- Fish biology, ecology, and behavior
- Conservation, Biodiversity, and Resource Management
- Land Use and Ecosystem Services
- Marine and coastal ecosystems
- Groundwater and Isotope Geochemistry
- Groundwater and Watershed Analysis
- Environmental and biological studies
- Remote Sensing in Agriculture
- Aquatic Ecosystems and Phytoplankton Dynamics
- Ecology and Vegetation Dynamics Studies
- Plant Water Relations and Carbon Dynamics
- Environmental Sustainability and Education
- Fish Ecology and Management Studies
- Agroforestry and silvopastoral systems
- Soil Geostatistics and Mapping
- Hydrocarbon exploration and reservoir analysis
- Geochemistry and Geologic Mapping
- Biofuel production and bioconversion
- Methane Hydrates and Related Phenomena
Universidade de São Paulo
2013-2023
Airbus (France)
2023
Instituto de Salud del Estado de México
2015-2016
Secretaria de Agricultura e Abastecimento
2012
Methodist University of Piracicaba
2000-2001
Universidade Federal de São Carlos
2000
AC Camargo Hospital
1997
Martin University
1997
Institut National de la Recherche Agronomique
1992
1 Several studies have shown that land use has a strong influence on river chemistry and its biotic components. Most of these focused nitrogen in temperate American European catchments. Much less is known about the relationship between stream conditions tropical areas developing countries. 2 Besides climate, there are three important differences attributes catchments: non-point sources dominant contributor pollution USA, whereas point source most our study; fertilizer much smaller countries,...
Bioenergy has been under intense scrutiny over the last ten years with significant research efforts in many countries taking place to define and measure sustainable practices. We describe here main challenges policy issues provide recommendations for scaling up bioenergy approaches globally. The 2016 Intended Nationally Determined Contributions (INDCs defined UN Framework Convention on Climate Change) (UNFCCC) Conference of Parties (COP21) will not reach global Greenhouse Gas (GHG) emission...
Methane (CH4 ) fluxes from world rivers are still poorly constrained, with measurements restricted mainly to temperate climates. Additional river flux measurements, including spatio-temporal studies, important refine extrapolations. Here we assess the variability of CH4 Amazon and its main tributaries, Negro, Solimões, Madeira, Tapajós, Xingu, Pará Rivers, based on direct using floating chambers. Sixteen 34 sites were measured during low high water seasons. Significant differences observed...
Abstract The flux of methane ( CH 4 ) from inland waters to the atmosphere has a profound impact on global atmospheric greenhouse gas GHG levels, and yet, strikingly little is known about dynamics controlling sources sinks in aquatic setting. Here, we examine cycling six large rivers A mazon basin, including R iver. Based stable isotopic mass balances , inputs outputs water column were estimated. We determined that ecosystem oxidation MOX reduced diffusive by approximately 28–96% varied...
Abstract A recent estimate of CO2 outgassing from Amazonian wetlands suggests that an order magnitude more leaves rivers through gas exchange with the atmosphere than is exported to ocean as organic plus inorganic carbon. However, contribution smaller still poorly understood, mainly because limitations in mapping their spatial extent. Considering largest extension Amazon River network composed small rivers, authors’ objective was elucidate role air–water by developing a geographic...
The Cerrado is one of the most threatened biomes in South America. To create protection actions on any scale, understanding drivers and consequences land cover use (LC LU) essential. This study defines composition configuration a landscape watershed from 1975 to 2011. Using Landsat images socioeconomic census data, we determined forces acting LC LU change processes their consequences. classes differ for dominance processes. Economic opportunities drove its spatial distribution was related...
We investigated the forms and composition of dissolved particulate organic matter in rivers Ji‐Paraná Basin, which is situated at southern limit Amazon lowlands has experienced extensive deforestation last three decades (∼35 000 km 2 ). Our objective was to investigate how land‐use changes, from forest cattle pasture, have affected river biogeochemistry. measured a series chemical, biochemical, isotopic tracers size classes within five sites along River eight more six tributaries. The...
Agroforestry systems are often promoted as solutions to address land degradation and climate change. However, agroforestry is an umbrella term for a large variety of it not clear how their degree complexity influences provision soil-based ecosystem services, such soil organic carbon (SOC) storage nutrient cycling. Furthermore, knowledge gap remains whether perform equally well on all types. The objectives this study were 1) assess the links between complexity, cycling SOC fractions, 2)...