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Overview: According to IPCC, a quarter of the emissions of greenhouse gases (GHG) in Brazil (22.6%) comes from agricultural activities, and 93% of the emitted CH4 is produced by enteric fermentation. Despite these values, well-practiced agriculture has great potential for reducing GHG emissions as long as specific management strategies are carried out. In light of the magnitude of the processes under evaluation, geotechnologies become important tools for spatializing and monitoring natural resources, anthropic activities, and consequences of these activities on the Earth's surface. The GeoPECUS project component is part of the PECUS project, which deals with "The dynamics of greenhouse gases in Brazilian agricultural production systems” and aims at estimating the participation of agricultural production systems in the dynamics of greenhouse gases in order to support public policies and mitigation alternatives.
Objectives: The project's objective is to apply geotechnologies in understanding the cause and effect relationships among agricultural activities and greenhouse gas emission processes in the Amazônia, Cerrado, Caatinga, Mata Atlântica, Pantanal and Pampa biomes. The project's specific objectives will have different approach scales, and will be synchronized with the other PECUS network component projects. The pasture map will be updated for the whole Brazilian territory and will become an information platform for studies of process modelling and for socioeconomic assessments. Spectral-temporal characterization will encompass experimental fields, the development of methods for the identification of pasture status on a regional scale, and may thus support studies of carbon-stocking potential estimates in deficit situations (degraded pastures). Spatial variability assessment will be performed on a local scale, and will encompass the discussion and presentation of carbon dynamics spatialization in production systems.
Expected results: Updated map of the pastures cultivated in Brazil; spectral and temporal characterization of land cover in the sampled areas by means of remote sensing techniques, thus generating maps and similar products; meteorological and IR temporal profiles' databases for the sampled areas; databases of the values estimated for vegetable biomass in the studied areas; spatial variability maps related to carbon dynamics in the production systems evaluated; geographic information system (GIS): a single base consolidating the information and data obtained in the PECUS network's different action plans; a website of the GeoPECUS project: intranet and a portal for the intended audience's access; WebGIS: dynamic maps available in the project's website.
TEAM
Leader: Sandra Furlan Nogueira - Researcher – Embrapa Satellite Monitoring.
Institutions involved: Embrapa Monitoramento por Satélite, Embrapa Cerrados, Embrapa Gado de Corte, Embrapa Pecuária Sudeste, Embrapa Informática Agropecuária, Embrapa Pantanal, Embrapa Pecuária Sul, Embrapa Semiárido, Embrapa Amazônia Oriental, Universidade Federal Rural do Rio de Janeiro, Universidade Federal de São Carlos.
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