DYNAMICS OF LAND USE, ON AGRICULTURAL SECTOR, IN PARAGOMINAS, PARÁ STATE

Abstract

ABSTRACT: Knowing land use is an essential step for strategic planning of the agricultural sector. Thus, this study evaluated the dynamics of land use in the city of Paragominas from 2008 to 2014 using geoprocessing and the shift-share model. The sources of the database acquired were TerraClass project, DNIT and IBGE, obtained in electronic addresses for free, which were used in the elaboration of georeferenced maps. The land uses were annual crops, shrubby pasture, herbaceous pasture, deforestation and reforestation, on the years of 2008 and 2014. The data in hectares from the five land use classes were also analyzed by the shift-share model through the effect area decomposed into the scale and substitution effects. The results revealed that land use in Paragominas presented expansion to the activities herbaceous pasture and annual crops in the study period resulting in positive values of the scale effect. Shrubby pasture and deforestation activities revealed a decrease in area utilization which resulted in negative values of the substitution effect. The class that presented higher values in hectares used and of substitution effect was the herbaceous pasture.KEYWORDS: Amazon, Geoprocessing, Shift-share Model.