Conflitos de uso e ocupação do solo em áreas de preservação permanente no munícipio de Jiquiriçá - BA

Abstract

The absence of adequate planning associated with the disorderly growth of cities and agricultural holding areas accelerates the destruction of PPAs. The objective of this work was to identify the occurrence of conflicts of land use and occupation in the Permanent Preservation Areas of the municipality of Jiquiriçá - Ba, according to the protection parameters established by environmental legislation. For that, the slope and the drainage network were generated through the completed MDE, after this process, the buffers were created in the APPs. Therefore, using images from the RapidEye satellite (RE4) of September 04, 2015, it was possible to mapping 6 classes of land use and occupation on the 1: 25000 scale, and the accuracy of this mapping was evaluated by the Kappa Index. Soil use conflicts were obtained by overlapping the generated map with the image classification and APP maps. Of possession it was possible to determine how much of APPs is preserved and in disagreement with the legislation. The results show that the APPs of Water source, 3,96 km2 (1,65%), Rivers 23,53 km2 (9,83%) and Slop 0,03 km2 (0,01%) were found in the municipality, making a total Of 25.3 km2 (10.57%) of the total area of the territory. The pasture class (14.83 km2) is the main occurrence of misuse in these areas. Only 29.76 km2 (7.53%) of the permanent preservation areas are protected by natural vegetation and 70.24 km2 (17.77%) of these areas are in disagreement with the legislation.