Revista Sociedade & Natureza (Dec 2007)
DADOS INTERFEROMÉTRICOS PARA MODELAGEM TOPOGRÁFICA E CARACTERIZAÇÃO AMBIENTAL DO CAFÉ EM ESCALA MUNICIPAL / Interferometric data for topographic modeling and environmental characterization of coffee crop at municipality scale
Abstract
With the recent technical evolution and the free of charge access to several geo technologies, ithas been observed that the use of these tools are relevant to the planning of agriculturalactivities in order to maximize the use of natural resources in a more sustainable manner. Inthis context, the physiographic conditions of a certain region may or may not allow agriculturalexploration bringing direct consequences to crop yield and to the environment. O pilot areawas selected in Minas Gerais State comprising the municipalities of Aguanil, Boa Esperança,Campo Belo and Cristais. In order to achieve the proposed objectives a pre-processing withthe SRTM regular grid was carried out, to correct for negative values. Following, an altimetrymash was associated to a cartographic projection system (UTM/SAD69) and organized in ageographic information system of public domain (SPRING). From the pre-processing and the application of derivative methods, the slope and slope orientation variables were obtained inspatial numerical format (regular mash) and thematic map. The results showed that it waspossible to obtaining the coffee crop profile for each municipality with regard to these variables.
