Environmental impacts of land use and occupation in subbasins of Campinas, Sao Paulo, Brazil

Changes promoted by anthropic actions in ecosystems located in urban habitats have generated the destruction of areas of great environmental importance, such as that occurring in small river basins that have suffered as a consequence of constant episodes of floods. This research discusses the consequences of land use and occupation on the soil attributes studied, thus allowing a broader discussion of the relationships between urban expansion and the reduction of vegetation areas and permeable areas in urban sub - basins. Thus, the subbasins Rio das Pedras and Baixo Anhumas, located in Campinas, Sao Paulo, were chosen as the study area. In the year 2014, 37 points were analyzed along the same lines, in order to characterize them from the environmental point of view, also collecting samples of deformed and undisturbed soil for laboratory analysis, besides the performance of tests of mechanical resistance to penetration, using a penetrometer. In general, the analyzed sub basins have been suffering over the years processes of fragilization of their ecosystems. This scenario of anthropic soil impacts in both basins allows us to infer that the urban occupation was directly responsible for the alterations and environmental disturbances suffered in the area.