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versão impressa ISSN 0100-6916
VALLE JUNIOR, Renato F. do et al. Diagnosis of areas of permanent preservation at the tijuco river watershed, Ituiutaba - MG, Brazil, using gis technology. Eng. Agríc. [online]. 2010, vol.30, n.3, pp.495-503. ISSN 0100-6916. http://dx.doi.org/10.1590/S0100-69162010000300013.
The present work had the objective to elaborate the map of land use and vegetation covering from Tijuco river watershed, Ituiutaba-MG, based on digital images obtained by satellite from CBERS 2, through automatic delimitation of permanent preservation areas followed by identification of land use conflict based on the Brazilian Forest Code (Law nº 4771/1965) and National Council of Environment's Resolution nº 303/02. This paper analyzes, through quantitative parameters and the use of Geographic Information System, the maintenance tracks of width recommended by the legislation for permanent preservation areas over water bodies. The results showed a deficit of conserved areas along the riverbanks of 2334 ha that are not in compliance with the legislation. The pasture occupies unduly 0.97% of the area of the basin in the permanent preservation areas at the riverbanks, while agriculture occupies 0.38%.
Palavras-chave : legal reserve; Geographic Information System - GIS; land use; remote sensing.