Análise socioambiental do processo de desertificação no município de Cajazeiras- PB.

Abstract

The municipality of Cajazeiras-PB, located in the western portion of the State of Paraiba - Mesoregion of Sertao Paraibano - presents geoenvironmental characteristics peculiar, due to the semi-arid climatic conditions in which this subject. The pluviometric indices present averages of 800 mm / annual distributed irregularly in time and space, high temperatures during the year and the negative water balance promoted the formation of little soils deep sea and installation of a low density vegetation - Caatinga, which naturally it promotes the development of erosive processes. The pressure demographics and the use of inappropriate cultivation and soil management techniques make this environment is susceptible to triggering desertification processes. In view of this, this work seeks in general to investigate the existence or not of the desertification process in the municipality of Cajazeiras - PB in three spheres: the natural or climatic, human or anthropogenic and anthropoclimatic. The methodology applied research was conducted based on the methodology of Birkeland (1974), for the study natural / climatic and the approach adopted by Dill (2007) to analyze human / socioeconomic. The combination of these methodologies enabled the analysis anthropoclimatic through a qualitative analysis based on the results of the natural and anthropogenic dimensions. Furthermore, the results found showed a environmental / natural balance of the study area and an index of degradation of 53.26%, thus not constituting a desertification in any of the three spheres. O that there is in fact a degrading picture in growth that has not become as a problem, it can definitely lead to the installation of desertification.