UtilizaÇÃo de imagem de satÉlite landsat no mapeamento da ocupaÇÃo da terra e seus conflitos de uso em apps na bacia hidrogrÁfica do ribeirÃo ParaÍso-SÃo Manuel (SP)
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The objectives of this study were to evaluate land use and occupation of Permanent Preservation Areas (PPA) as well as its use conflicts by TM (Thematic Mapper) image of the 2010 Landsat-5 satellite, according to the Forest Code. For that purpose, Geographic Information Systems in the Ribeirão Paraíso watershed, São Manuel, SP were used. The combination of Remote Sensing and Geographic Information System technologies allowed representation of spatial distribution of the landscape and data integration in the diagnosis of geographic interest. The 2010 mapping showed 12 use categories, and the sugar cane crop had the largest land occupation, 48.25% of the area. The areas of permanent preservation amounted to 925.74 ha, which is an ideal value based on the Brazilian legislation. Mapping of land use conflicts showed intensive anthropic actions going 80.13% forward on PPAs, with only 19.87% remaining forests, which highlights their negative impact and illegal situations in these areas.
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Geographic information systems, Land use and occupation, Remote sensing, Watershed
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Português
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IRRIGA, v. 19, n. 3, p. 478-487, 2014.
