Avaliação da fragilidade ambiental ao processo de desertificação no Cariri Ocidental Paraibano.

Abstract

Conducting human actions on a sustainable course requires an understanding of the capacities and fragilities intrinsic to geographical spaces. Environmental degradation is characteristic of the predatory model of unpopular use of space and requires, more and more urgently, planning, not only physicalterritorial but also socioenvironmental. In this sense, it is necessary that the physical and socioeconomic characteristics be evaluated in an integrated way. This study aims to characterize and evaluate the environmental fragilities that lead to the desertification the municipalities that are part of the Paraíba Western Cariri2 microregion, process through the use of geotechnologies in the elaboration of maps of geology, slope, soil, vegetation and climate to later build the environmental fragility indexes of the microregion. For this, two methodological models were used: Ross (1994) and Crepani et al., (2001), which resulted in the elaboration of physical mapping and socioeconomic charts of Geographic Space under discussion. The use of geoprocessing is an important tool in the evaluation of this study in which the data obtained in Qgis 18.1 software and temporal analysis of NDVI were manipulated. The environmental fragility map was made from maps of geolodia, declivity, soil, vegetation and climate. The study of the Environmental Fragilities provides and improve the directions related to the implementation of management actions in the physicalterritorial space offering subsidies so that measures are implemented in a planned and conscious way.