%0 Conference Proceedings
%4 sid.inpe.br/marte2/2017/10.27.15.34.23
%2 sid.inpe.br/marte2/2017/10.27.15.34.24
%@isbn 978-85-17-00088-1
%F 61626
%T Estimativa de perdas de solo da bacia do Córrego Itabira, Cachoeiro de Itapemirim-ES
%D 2017
%A Coutinho, Luciano Melo,
%@electronicmailaddress lcncoutinho@hotmail.com
%E Gherardi, Douglas Francisco Marcolino,
%E Aragão, Luiz Eduardo Oliveira e Cruz de,
%B Simpósio Brasileiro de Sensoriamento Remoto, 18 (SBSR)
%C Santos
%8 28-31 maio 2017
%I Instituto Nacional de Pesquisas Espaciais (INPE)
%J São José dos Campos
%P 5841-5848
%S Anais
%1 Instituto Nacional de Pesquisas Espaciais (INPE)
%X Anthropic activities in general are not preceded by practices that contemplate environmental conservation, which can intensify erosion processes, causing the depletion and devaluation of agricultural lands. Water erosion is the main modeling agent of river watershed, also considered the main cause of negative impacts. The Universal Soil Loss Equation (ESLE) brings together the main physical and geographic factors (PS = R*K*L*S*C*P) related for erosion, allowing to estimate losses for large areas (ton / ha / year). In this work the annual erosion of the Itabira Stream watershed was estimated from data georeferenced in a Geographic Information System (GIS) environment. The relief representation adopted the digital hydrography and altimetry mapping for the generation of the Digital Hydrologically Consistent Elevation Model (MDEHC) and the slope map. The land use mapping was made by interpretation and vectorization of digital aerial photography. The final product consisted of an erosion map from the algebra of thematic maps. The analyzed watershed presents diversity of relief with sloping areas in the head (preserved areas and of less risk of erosion) and flat downstream (occupied areas and of greater risk). The main erosion values (ton / ha / year) identified were minimal (0), medium (18.65) and maximum (306.17).
%9 Solos e umidade do solo
%@language pt
%3 61626.pdf