Geoenvironmental zoning of the municipality of Cacequi, Rio Grande do Sul

Abstract

The municipality of Cacequi, located in the west of Rio Grande do Sul is characterized by the occurrence of several environmental problems related to the sandy soil and sedimentary rocks of the region. The objective of this work is to classify the municipality into Geoenvironmental Units, highlighting potentialities and susceptibilities. For the elaboration of the Geoenvironmental Zoning maps of relief forms, lithology and land use were overlaid and then ten distinct classes were discriminated. There is a predominance of the Cacequi Unit (36%), which is characterized by low fertile soils and high occurrence of linear erosive processes, making less intense anthropic occupation necessary in these areas. In general, Cacequi is located in an area of great environmental fragility, requiring continuous environmental planning in the municipality.