MUDANÇAS DE USO E COBERTURA DO SOLO NA PAISAGEM DE ORIZONA (GO) - 1985 A 2020.

Aiming to understand the dynamics of land use and land cover in the municipality of Orizona - Goiás, Brazil, it was sought to understand how the agricultural expansion interfered with the changes in the surface modeling that occurred in the Brazilian Cerrado regions, relating them to the influence of the Agroindustrial Complexes that intensified such modifications. For this, the years 1985, 1995, 2005, 2015, 2018 and 2020 were defined to develop the necessary mappings and to identify local dynamics. The development of this research was based on understanding the dynamics of land use and land cover through the systemic method, using remote sensing and geoprocessing techniques for the survey of the data originated from the acquisition of satellite images, the color composition (RGB), the geometric correction, the segmentation and classification of the images, and finally, the elaboration of the maps. The results of this study showed the gradual expansion of agricultural areas in Orizona during the whole researched period, being related to the development of the modernization of the countryside and the advance of the agricultural frontier in the Cerrado, already staggered by pasturages. In this perspective, it was possible to observe the return of native vegetation areas as a result of the advance of anthropic uses, reducing approximately 42% of the total preserved area, while agriculture increased roughly 160% in the researched period. These aforementioned transformations are happening not only in the municipality of Orizona, but also in practically the entire Brazilian territory, arousing the interest in researching this topic. [ABSTRACT FROM AUTHOR]