Abstract

ROBAINA, Luís  and  TRENTIN, Romario. Estudos e zoneamento geoambiental do município de São Francisco de Assis - Oeste do Rio Grande do SulStudies and geo-environmental zoning on the municipality of São Francisco de Assis - Rio Grande do Sul West. GOT [online]. 2019, n.16, pp.323-344. ISSN 2182-1267.  https://doi.org/10.17127/got/2019.16.014.

Geoenvironmental studies represent an important instrument for the planning and analysis of land use and occupation forms. This type of work when associated with geomorphological issues brings important results for zoning and regional planning. The objective of this study was to define the Geoenvironmental zoning of the municipality of São Francisco de Assis(SFA), located in the Western part of the Rio Grande do Sul, using as analysis parameters the relief conditions, lithology, soils and occupation. The applied methodology follows the proposal of Trentin and Robaina (2005) where they define that Geoenvironmental Zoning refers to the division of a certain geographic space and has its direction in determining the fragilities and environmental potential of the landscapes. For this, the environmental parameters of the geological substrate, the landforms, features of the hydrographic network, soil characteristics and surface features are used. The use and occupation of the land complete the data for final Geoenvironmental analysis and compartmentalization. As final results, eleven units were defined that present a homogeneous behavior in relation surface processes, being: Plateau Leste - Serra dos Canários; Plateau Oeste - Serra dos Canários; Rim of the Plateau; Volcanic Hills; Sandy Hills; Sand Fields; Forestry; Urban; São Francisco Hills; Lowlands of the Jaguari River and Fluvial valleys.

Keywords : Relief Analysis; Forms of use and occupation; Lithology; Soil; Geoenvironmental Zoning.

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