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espanolLa fragilidad ambiental se refiere a la fragilidad del ambiente en funcion de cualquier tipo de dano causado por la dinamica ambiental, sea de forma natural y / o antropica, estando relacionada con la erosion del suelo y la sedimentacion de los rios. El objetivo de esta investigacion fue realizar un analisis de la fragilidad ambiental de la cuenca hidrografica del rio San Pedro, en el municipio de Santa Rita do Pardo / MS, analizando sus caracteristicas fisicas y el uso de la tierra y cobertura vegetal. Para ello, la metodologia consiste en dos etapas: la primera de ellas en la evaluacion de las precipitaciones buscando algunas estaciones meteorologicas en el entorno de la cuenca hidrografica, trabajando en ambiente SIG ArcGis 10. La segunda se refiere al manejo de las informaciones sobre areas prioritarias y suelos, si los datos del SISLA / IMASUL, la declividad, se trabajo con el modelo digital de terreno SRTM y para el uso de la tierra y cobertura vegetal la utilizacion de las imagenes de satelite Landsat 8. Con ello, la interpolacion de esas informaciones se baso en la propuesta metodologica de Ross (1994) para la fragilidad ambiental. Las clases de fragilidad obtenidas son la categoria baja que se mostro dominante en la cuenca, siendo presentes en bosques nativos y pastos, la categoria media y alta, que juntas presentaron el 39,56% del area total de la cuenca se encontraron en locales con alto declive, concluyendo asi que la cuenca hidrografica necesita el analisis de sus caracteristicas, donde cualquier cambio en uno de sus elementos puede alterar la fragilidad del local, perjudicando asi sus recursos naturales. portuguesA fragilidade ambiental diz respeito a fragilidade do ambiente em funcao de qualquer tipo de dano causado pela dinâmica ambiental por meio natural e/ou pela acao antropica, sendo relacionada com a erosao do solo e assoreamento dos rios. O objetivo desta pesquisa e realizar uma analise fragilidade ambiental da bacia hidrografica do ribeirao Sao Pedro, analisando suas caracteristicas fisicas e o uso da terra e cobertura vegetal. As classes de fragilidade obtidas foram a categoria baixa que se mostrou dominante na bacia, sendo se tornando presentes em matas e pastagens, a categoria media e alta, que juntas apresentaram 39,56% da area total da bacia foram encontrados em locais com alto declive, concluindo assim que a bacia hidrografica necessita da analise de suas caracteristicas, onde qualquer mudanca em um de seus elementos pode alterar a fragilidade do local, prejudicando assim, seus recursos naturais. EnglishThe environmental fragility refers to the fragility of the environment due to any kind of damage caused by the environmental dynamics, either naturally or anthropically, and is related to soil erosion and silting of rivers. The objective of this research was to analyze the environmental fragility of the Sao Pedro river basin, in the municipality of Santa Rita do Pardo / MS, analyzing its physical characteristics and the use of land and vegetation cover. To do so, the methodology consists of two stages: the first one in the evaluation of precipitation by searching for some meteorological stations around the watershed, working in ArcGis 10 GIS environment. The second one concerns the handling of information on priority areas and soils, if data from the SISLA / IMASUL, the slope was worked with the SRTM digital terrain model and for the land use and vegetation cover the use of Landsat 8 satellite images. With this, the interpolation of this information was based on the methodological proposal of Ross (1994) for environmental fragility. The fragility classes obtained are the low category that was dominant in the basin, being present in native forests and pastures, the medium and high category, which together presented 39.56% of the total area of the basin were found in places with high slope, thus concluding that the river basin needs the analysis of its characteristics, where any change in one of its elements can alter the fragility of the place, thus damaging its natural resources.

revista cerrados/revista cerrados

EMPREGO DO SENSORIAMENTO REMOTO E SISTEMA DE INFORMAÇÃO GEOGRÁFICA NA AVALIAÇÃO DA FRAGILIDADE AMBIENTAL DA BACIA HIDROGRÁFICA DO RIBEIRÃO SÃO PEDRO, SANTA RITA DO PARDO/MS