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Land use conflicts in the São Bartolomeu watershed in Viçosa, Brazil

In this study, we aimed to map the land use conflicts occurred in 1987 and 2007 in a watershed located in the municipality of Viçosa, Minas Gerais state, Brazil. To this end, we used Orthophotos and orthorectified images obtained by the Ikonos satellite in 1987 and 2007, respectively. Using photo interpretation techniques, nine classes were mapped through on-screen visual interpretation. The land use maps generated were compared with a map of Permanent Preservation Areas (PPAs) to define misuse areas. The main results indicated that the Pasture class occupied approximately 50% of the evaluated data in both PPAs. Agriculture and Coffee classes had their areas of occupation in PPA increased slightly. In general, all classes of land use occupied more than 30% of PPAs on the two dates analyzed, indicating a high rate of misuse.

geoprocessing; change detection; land cover


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