ENVIRONMENTAL VULNERABILITY IN THE JAPARATUBA RIVER BASIN OF SERGIPE BASED ON THE ALGEBRA OF MAPS - DOI: 10.13083/1414-3984.v22n01a06

• Autor(a) principal: de Jesus, Christiane Freitas Pinheiro
• Data de Publicação: 2014
• Outros Autores: Dias, Nelson Wellausen, Cruz, Marcus Aurelio Soares
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Engenharia na Agricultura
• Texto Completo: https://periodicos.ufv.br/reveng/article/view/396
• topic: Análise integrada; bacia hidrográfica; geoprocessamento

Much of the Japaratuba river basin had been deforested in the past to make way space for pasture, sugarcane plantation and mineral exploration (oil and potassium). In order to perform an evaluation encompassing not only the biophysical aspects, but also the socioeconomic factors, this study sought to perform a preliminary analysis focused on the socioenvironmental vulnerability of this basin. Therefore, spatial analysis techniques involving map algebra of spatial information layers were conducted that included: spatial distribution of the population and people with no income per census sector, land use and soil loss by erosion model. The results showed that the vulnerability highest were concentrated in the central portion of the basin and towards some stretches near the mouth. In these areas there is higher population concentration, greater number of people without fixed monthly income, and higher values of soil loss by erosion.