Análise multicritério na definição de áreas com prioridade de recuperação na APA do Pratigi, Bahia

Abstract

The APA do Pratigi is completely located on the Atlantic Forest context. According to its management plan, the APA do Pratigi has different remaining forests as Montane and Submontane Atlantic Rain Forest, Lowland Atlantic Rain Forest, mangroves, sandbanks and marshlands. Recognize and monitor the use and land cover of an area with intends to realize the spatial organization and patterns is an important strategy to the landscape manage. The aim of this survey was to analyze the use and land cover in an Environment Protected Area, APA do Pratigi. Rapideye sensor imageries were applied to make a mosaic to cover all limited area. The training samples was based on parameter as color, texture and spectral behavior using visual interpretation. The band composition utilized was RGB 5-4-3. The classification was realized using Maximum Likelihood Classifier. To attender the requisite of minimum mapping unit considering the 1:250000 scale, we used the software ArcGIS to the polygons generalization with area smaller then 0,25 hectare. The results showed that the most import land cover in APA do Pratigi is Mature Forest with representation of 30,19%, although the wood exploration on the 70’s. After Mature Forest, the highest representation is by Young Forest, 11,81%. Finally Agroforest with 10,26% of representation.