AVALIAÇÃO MULTITEMPORAL DO USO E COBERTURA DO SOLO DA BACIA HIDROGRÁFICA DO RIBEIRÃO JOÃO LEITE UTILIZANDO IMAGENS LANDSAT-5

Wellington Nunes de Oliveira; Nilson Clementino Ferreira

doi:10.5327/Z2176-947820159813

Authors

Wellington Nunes de Oliveira Universidade Federal de Goiás (UFG)
Nilson Clementino Ferreira Universidade Federal de Goiás (UFG)

DOI:

https://doi.org/10.5327/Z2176-947820159813

Keywords:

geoprocessamento; qualidade ambiental; paisagem; degradação.

Abstract

The analysis of land use and land cover is fundamental for the strategic planning to the conservation and management of a watershed. This study aimed to analyze the landscape of the catchment area of João Leite River, located in the State of Goiás, to the Northwest of the city of Goiânia, the state capital, using Geographic Information System (GIS) and Remote Sensing to prepare an environmental assessment of that watershed. A multi-temporal analysis using images obtained by the TM sensor installed in the Landsat-5 satellite, from 1985 to 2011 showed, in the catchment area of the João Leite River, a decrease of 7.4 % in the native vegetation area. Considering the municipalities integrating the basin, Anápolis was where most deforestation occurred in areas with native vegetation (11.1%). These results are relevant to institutions dealing with environmental management, showing that deforestation is directly related to the environmental quality of the basin, which has as one of its uses the urban water supply of municipalities located in the Metropolitan Region of Goiânia.