Degradação ambiental em Gilbués, Piauí

Abstract

This paper has as main subject to present an overview on environmental, social and economic conditions of Gilbués, a State of Paiuí southeast region. Officially recognized as a “núcleo de desertificação”, (desertification nucleous) this area shows severe soil degradation, caused by the sum of rain erosivity and soil erodibility. From a climatic point of view two main factors differentiate Gilbues and semi arid regions: the values of the aridity index, and the values of the inter annual rain variability index are both significatively lower than the ones of the semi arid regions. Besides intense natural morphogenesis the Gilbulés area presents predatory forms of traditional cattle raising and diamond mining activities. We hope the information presented here could subsidises future scientific research on Gilbues region.