Análise temporal do uso do solo por imagens de satélite pré classificadas de algumas bacias hidrográficas do município de Dourados, Mato Grosso do Sul

Abstract

The expansion of sugarcane took place in areas previously occupied by livestock and can be explained by the scarcity of land in the main sugarcane producing regions and the availability of land in Mato Grosso do Sul. Studies related to the temporal characterization of the use and occupation of the land are essential for the definition of public policies for territorial planning, allowing an understanding of the dynamics of occupation of territories and how this affects the water resources of a hydrographic basin. This paper presents an analysis of the temporal space of the dynamics of land use and occupation in some hydrographic basins of some rivers in the Cerrado Biome and Atlantic Forest areas in the municipality of Dourados, State of Mato Grosso do Sul, between the years 1985 to 2019 Starting from satellite images pre-classified by the MapBiomas project, the evolution of territorial occupation was analyzed. Analyzing the data, there was a progressive reduction in the areas of native vegetation and the exchange of use of pasture areas for areas destined for sugarcane. The evolution of land use change took place at an accelerated pace, mainly from 2005. As a result of the analysis, in both Biomes, pasture areas lost more than 70% and the class of other temporary crops lost more than 90% of its area in the time range. The forest formation class had an increase of 23% in this period, demonstrating a pale concern for the environment, as these are areas that have not shown investment in preservation, but a decrease in the management of agro-pastoral areas.