MAPEAMENTO DAS MUDANÇAS DE USO E COBERTURA DA TERRA NA REGIÃO DAS BACIAS HIDROGRÁFICAS DOS RIOS PIRACICABA, CAPIVARI E JUNDIAÍ (PCJ) E JUQUERI

Mapping land use and land cover changes in the Piracicaba, Capivari and Jundiaí (PCJ) and Juqueri rivers basins region

Abstract

The basins of Piracicaba, Capivari and Jundiaí (PCJ) and Juqueri rivers, which are part of the Cantareira System, have undergone extensive changes in social, environmental and economic aspects in recent decades. Therefore, understanding the environment in which people are inserted is of great value, which makes it important to evaluate information of land use and land cover to guide decision-making and managing the environment. Such information is obtained using remote sensing and geoprocessing techniques. The study area comprises approximately 16,000 km², covers 80 municipalities, with 64 municipal seats, and almost 6 million inhabitants (IBGE, 2020). In order to understand the dynamics of land use and land cover in the region, the objective of this work was to quantify changes in land use and land cover, which occurred from 1985, and every 5 years, until 2015. The classes considered were: native vegetation, forestry, agriculture, pasture, urban area and water bodies. The results show the predominance of pasture throughout the studied period, however, there was a recession of approximately 12% in this class. It is also noteworthy that the urban area has developed throughout the study region, especially in the central region.