This work aims at contribute to methodological structuring of environmental data in GIS (Geographic Information System) SPRING (Sistema de Processamento de Informações Georreferenciadas), to determine the classification and adequacy of agricultural areas in land use capability system. The Jacaré Guaçú stream basin, located in central region of São Paulo state (Brazil), was used for application of procedures carried. To sort the land capability was used Boolean logic between soil data and land slope. The land use cover was determined using TM images from Landsat 5 satellite. The land use adequacy map was elaborated through matrix data integration of land use capability and land cover use. The results show that it is possible to check in an efficient and relatively quickly, the land use capability and land use adequacy in hydrographic basin, through GIS SPRING and environmental data available free on the worldwide web.