Base de dados ambiental e socioeconômica da Bacia do Rio São Miguel - Alagaos, Brasil

Abstract

Geotechnologies, in their rapid evolution, have revolutionized the environmental analysis scenario, with the advent of Remote Sensing (RS) that enables the photointerpretation of satellite images. Geoprocessing, which makes it possible to cross-reference variables to generate a map/product capable of translating and spatializing a geographical area, and thematic mapping, among others, has led to a rapid evolution of socio-environmental data and results. With the growing concern with the environmental scenario from the 60's and 70's in Brazil, there are legislations used by institutes that seek to preserve the environment. The present work has the objective of implementing the database of the São Miguel River Basin, in Alagoas, through geotechnologies, to generate information that will help in the environmental management of the study area. As methodologies were performed bibliographic reviews, collection of environmental and socioeconomic data, compatibilization and semi-automatic edition of the digital elevation model of the São Miguel River watershed. As products were generated maps that spatialize the variables for better analysis. As a product of the whole elaboration of the database of the São Miguel River Basin there is a region with predominant altimetry of the 40 to 200 ranges, characterizing the greatest areal dominance of the basin. The sanitation in the study area consists of water supply by means of deep wells, as well as surface water. The water treatment used by the municipalities are: conventional treatment and simple disinfection. The environmental cause resists for autonomy and expression in contrast to the radical thought of exploitation of natural resources without regulation, therefore, this study aims to contribute to the generation of a database to help strengthen the socio-environmental cause and the creation of conservation units has proven to be effective in the study area.