Spatio-temporal dynamics of landscape of Mirassol d'Oeste/Mato Grosso, Brazil

Abstract

The aim of this study is to analyze the spatio-temporal dynamics of vegetation cover and land use of the sights of the city of Mirassol D'Oeste, Mato Grosso, assessing the anthropogenic pressure. To carry out the study, the Geotechnologies were used and the Anthropic Pressure Index was applied to evaluate the conservation status of the municipal landscape. The results indicate changes in all classes during the 29 years investigated, with 27.20% reduction of forested Savannah, which was related with the increase of 14.58 percent of grazing; growth of 10.64% of the agricultural area; alluvial Forest and of 1984 to 1993, followed by a fall of 0.25% in the year 2003 and subsequent increase of 0.71% in 2013. The results of the Anthropogenic Pressure Index showed that the landscape of the municipality of Mirassol D'Oeste is in a regular state of conservation. The analysis made it possible to conclude that the increased suppression of natural vegetation, with the exception of the alluvial Forest, was due to the insertion of grazing and agriculture, the main pressures on the environment.