Image Processing / Remote Sensing / Natural Resource Management / Water Management / Land use and land cover / Supervised Classification / Landsat TM / Sustainable Use / Agricultural land use change / Sensoriamento Remoto / Water Erosion / Processamento de Imagens / Natural Resource / Accuracy Assessment / Geographic Information System / Maximum Likelihood classification / Supervised Classification / Landsat TM / Sustainable Use / Agricultural land use change / Sensoriamento Remoto / Water Erosion / Processamento de Imagens / Natural Resource / Accuracy Assessment / Geographic Information System / Maximum Likelihood classification