Modelo multicritério de decisão para análise da vulnerabilidade à desertificação no semiárido brasileiro

Abstract

This work intends to estimate the Brazilian semi-arid’s vulnerability to desertification as function of the resulting anthropic pressure from the economical exploitation activities of the Region under the optic of utilization of the multicriteria decision model known as Analytic Hierarchy Process (AHP). The desertification, established as the combination of natural phenomenon with causes related to climatic conditions and as the inadequate use of natural resources, contributes to increasing the local vulnerability, making the physical space inappropriate to maintain life. Therefore, this study intends to build a hierarchy of the main anthropic activities developed in the region in reference of the intensification of environmental impacts. Thus, it is expected the development of combat measures, coexistence measures, measures of mitigation and adaptation aiming the scenario reduction of desertification vulnerability in the region, assisting public managers in their decision-making.