Diagnóstico Ambiental Como Subsídio à Restauração Florestal E Manutenção Hidrológica Da Bacia Do Ribeirão Dos Pinheirinhos, Brotas – Sp

The occupation of Ribeirão dos Pinheirinhos caused fragmentation of riparian vegetation, affecting the dynamic environment of the city of Brotas, SP. In this sense, environmental diagnostics acts as an indispensable tool for actions intended to minimize these effects in the medium and long term. The objective of this study was to diagnosis permanent preservation areas (APP) in the basin of Ribeirão dos Pinheirinhos, Brotas - SP, in order to determine priority areas for forest restoration. We used a digital cartographic database and IDRISI Andes GIS for spatial analysis and image processing. Map and soil coverage was generated by the application of supervised classification algorithm for maximum likelihood, and the PPA's defined according to the Brazilian Forest Code, to identify their land use. It was subsequently generated a map of distance to the sources, which crossed the land resulting in the map of priority areas for forest restoration. Agricultural crops and bare soil (73.70%) predominate, leaving only 23.14% of remaining forest. It was observed that 32.09% of APP's are improperly employed. Thus, it is evident the need for investment for conservation of forest remnants, with better planning land use and adaptation to government agencies legislation, since 68.45% of the total area was classified as high to too high priority for restoration, a percentage that increases with the expansion of farming. © 2016, Universidade Estadual Paulista - UNESP. All rights reserved.21111