DIAGNOSING ENVIRONMENTAL FRAGILITY ON THE HYDROGRAPHIC BASIN OF SANTO ANTONIO RIVER, MS: SUBSIDY TO ENVIRONMENTAL ZONING

This study aims to identify the environmental fragility of the Hydrographic Basin of Santo Antonio River, and to suggest an initial environmental zoning. For this purpose, it was used Ross's (1994 and 2012) methodology of potential and environmental fragility supported by remote sensing data as well as geoprocessing. It was used image from Landsat satellite 8/0LI-2014 for Land use mapping and project GeoMS data about land cover. The environmental fragility was developed from the combination of potential fragility maps and theme maps of land use and cover of 2014. The results have shown that there is predominance of medium environmental fragility (74.81%), associated to the major occupation of the basin by pasture, which occupies 52.1% of the area. There are also Permanent Preservation Area (PPA) improperly occupied with pasture and agriculture. Giving the situation in which the basin is found, it was proposed an initial environmental planning with use and occupation guidelines of the area in a sustainable manner with recommendations and limitations of use in vulnerable areas, such as proposition of recovering degrades areas.