Aplicação de SIG no uso do MUSAG visando a diminuição dos riscos na produção agrícola. Bacia do alto rio Sucuru, Paraíba: um estudo de caso.

Abstract

The main objective of the work is to evaluate the use the Ground Humidity Model for Agricutural Activities (MUSAG) in the determination of the humidity of ground, assisted for a Geographic Information Systems (GIS) in the creation of a georefereciados data base and in the generation of thematic maps, as form to indicate the best date of plantation of the maize and beans, in the semi-arid region. The study area, with approximately 981.20 Km2 , situated in the Microregion of the Cariris Velhos Paraibano, cover completely or partial the municipalities Amparo, Sume. Prata, Monteiro and Ouro Velho. The result reached in this work allows to use the SIG as a tool important to store, to recoup and to analyze maps in a computational environment, where it can be included different types of geographic data superranks under digital form, for the analysis and mapping of the humidity of the ground of the study area assisting the borrowers of decision to plan the time of sowing of the subsistence cultures. A direct consequence of the resulted cited is in the fact of that the city halls of the cities of Amparo e Prata already had requested the implantation of this system, as aid in the definition of the best time of plantation of the maize and beans and with base in these data to elaborate the politics of distribution of the seeds for the small agriculturists.