The Brazilian northeast is a region characterized by a semi-arid climate, with precipitation highly variable spatially and in time, with high atmospheric evaporation demand. Model simulation, associating future climate change to anthropogenic use of the soil, suggest an even drier climate in the region in the future, with serious effects in the hydrological and nutrient balances. The intensification of dry climate and extreme events (drought spells or intense precipitation) has the potential to impact significantly the predicted 75millions people leaving in the region by the middle of the century. As example, some recent studies indicate that, considering the A2 IPCC scenario, the region might loose 50% in its agricultural potential by 2050. The aim of this work is to present a suit of studies that are being conduct in the Brazilian Northeast looking at land use mapping to support modeling (IBIS, CENTURY) and field experimental activities on nutrient cycling, agricultural production, emissions of green house gases, climate change scenarios and food security. Vulnerability and adaptation are being accessed envisioning providing subside for public policies in the region for agriculture production, water use and land use change planning.
Redes Sociais