Mapeamento do uso e cobertura da terra na Comunidade de São Jorge – Belterra PA

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The National Forest (FLONA) of the Tapajos is an important protected area located in Brazilian Amazon, Para state. Just like the São Jorge community, the unit suffers from strong anthropogenic pressure mainly in its surroundings (margins of the BR 163 highway), presenting illegal logging in the areas near to its south limits. The community was dismembered of the protected area since 2012 for purposes of using the land without the restrictions imposed by the conservation laws. Therefore, this paper aims to map the main land use change characteristics in the São Jorge community and to establish a hierarchical pattern to analyze how these patterns can influence in the vegetation suppression. The data used to map the land use change was a multispectral image of the RapiEye orbital sensor with a spatial resolution of 5 meters/pixel. As a preliminary step of the classification, image segmentation was done through means of the “multi-resolution” algorithm in the eCognition platform. Furthermore, non-parametric methods of data mining were also applied in order to classify the land use change over the image data. The classification results display the classes “vegetation” and “agropastoril” as the most predominant ones, suggestible revealing the conservation state of the forest and the agricultural expansion. The results of this study can also contribute as a small effort towards the conservation projection of protected areas, reacting against the illegal logging and forest suppression