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The study aimed to analyze Potential Environmental Fragility (FAP) and Emergent (FAE) of the Duas Bocas river basin, Espirito Santo, through the integration of slope, soil, geomorphology, land use and land cover and precipitation from 1970, 2008 and 2012.The methodology was divided into three stages: the first corresponded to bibliographic research and acquisition of matrix and vector cartographic data. In the second stage, field surveys were carried out to recognize the area and validate cartographic products in loco. The third stage was in charge of the cabinet work with the elaboration of cartographic products. With the analysis of the results, it was found that the FAP presented the upper and very high classes in the central and upper portions of the basin, with the presence of Haplic Cambisols and Lithic Neossols in strongly dissected relief and slopes above 30%. In the lower portion, the classes were low and medium with the presence of Red-Yellow Latosols and Gleysols, in smooth wavy and flat relief, with a slope between 0 to 6% and 6% to 12%. The FAE had an attenuation in the upper portion, due to land use (native forest), with very low and low class. In the central portion, the class was high and medium (exception 1970), and in the lower low and middle class, with pasture as use and some points with very low class, due to fragments of native forest, with high and medium in 1970 in the floodplain. However, the methodology used proved to be satisfactory in terms of environmental fragility.

Análise empírica da fragilidade ambiental da bacia hidrográfica do rio Duas Bocas, Espírito Santo, Brasil