Análise de fragilidade ambiental da área rural dentro dos limites da Microbacia do Brejo Comprido

Abstract

Occupations in cerrado areas cause the soil to lose some natural aptitudes, that is, these soils can present high fragility. With the intention of helping future studies to better understand what is happening, demonstrating the environmental fragility in the rural area of the Brejo Comprido Microbasin, in Palmas - TO. To make the fragility map, ArcGIS 10.5 software was used, through these operations of the information plans that make up the territorial unit of the geographic study area, it results in unique values for each basic territorial unit, performing the arithmetic mean of the analyzed factors, according to the empirical equation Spörl and Ross (2004), seeking to represent the position of these units within the degree of natural fragility to soil loss. In this methodology, the geoprocessing allows the mapping of the environmental fragility of the ecodynamic units through the correlation and analysis of the factors, for environmental components slope and soil, and for anthropized components the cover and land use. The way to obtain the environmental fragility of this study is the product that establishes the methodological parameters for the empirical analysis of the fragility of natural and anthropized environments, in which it included degrees of classification being described the stable and unstable ecodynamic units that vary from very low to very low instability. high.