ANALYSIS OF CHANGES IN THE USE AND COVERAGE OF THE SOIL BETWEEN 1985 AND 2018 IN THE JUNDIAÍ-MIRIM HYDROGRAPHIC BASIN - JUNDIAÍ / SÃO PAULO

Abstract

The hydrographic basin of Jundiai-Mirim’s river accounts for 95% of public water supply in Jundiaí, and thus has undergone changes in the last decades with the expansion of agriculture and urbanization, which can cause an impact in water production. This work analyzed the changes in land usage and coverage in the basin, throughout 1985, 1995, 2005, 2018, as well as the dynamics of suppression and recovery of forests between 1985 and 2018, in order to understand the main forest change drivers. The study used secondary data mapping from Mapbiomas to calculate areas by classes of interest, later statistically analyzed. Results evidenced the predominance of agriculture, which occupies 61.57% of the territory, as well as a sharp expansion of urbanization, which grew 97% between 1985 and 2018. Forests occupy 26.79% of the studied area and 63,81% of the Permanent Preservation Areas are occupied by anthropic uses. Between 1985 and 2018, there was a net loss of 339 hectares of forests, with agriculture being the main vector of deforestation. It concludes by the need to improve the mechanisms of environmental planning and management in the territory.