ANALYSIS OF RELIEF FORMS OF THE CACEQUI MUNICIPALITY – RS

Lucas Krein Rademann, Romario Trentin, Luis Eduardo de Souza Robaina

Abstract


The landscape is shaped by various natural and anthropogenic processes. These processes affect the development of various forms of relief. The characteristics of these forms provide limitations and skills for the use of the land. Thus, this study aims to analyze the forms of relief, of Cacequi, municipality of western state of Rio Grande do Sul region. In developing the hydrographic maps, slope, hypsometry and landforms was used GIS ArcGIS 10.1. Its hydrography was analyzed and prioritized according to Strahler (1952). 5 classes were used for the preparation of topographic map of Cacequi according to the average altitude of the municipality's land. Even for the analysis of the slope were used 4-defined classes IPT smaller than 2%, from 2 to 5%, 5 to 15% and more than 15%. The landforms were divided into hills, rolling hills, buttles and floodplains. Cacequi has low altitude and small altimetry variation therefore also lower slopes, featuring homogeneous relief represented by values ​​close to average length of the strands in their sub-basins with the predominance of hills and plains. The study of relief, shown to be important in the geomorphological analysis and regional planning.

Keywords


Formas de relevo; Oeste do Rio Grande do Sul; Morfometria

References


BARATTO, D. S.; TRENTIN, R.; Análise das Unidades de Relevo da bacia Hidrográfica do Arroio Puitã (RS). Revista Geonorte, Edição Especial, V.3, N.4, p. 543-555, 2012.

CHRISTOFOLETTI, A. A variabilidade espacial e temporal da densidade de drenagem. Notícia Geomorfológica, v.21, n.42, p. 3-22, 1981

_____. Geomorfologia. São Paulo: Universidade de São Paulo, 1974.

_____. Geomorfologia fluvial. São Paulo: Edgard Blucher, 1981.

DE NARDIN, D.; ROBAINA, L. E. D. S. Mapeamento de Unidades do Relevo no Oeste do RS: O Caso da Bacia Hidrográfica do Arroio Miracatú. Anais do XI Simpósio Brasileiro de Geografia Física Aplicada, São Paulo, 2005.

Instituto Brasileiro de Geografia (IBGE). Malha municipal digital. Disponível em: ftp://geoftp.ibge.gov.br/mapas/malhas_digitais/municipio_2010/

MENEZES et al.; Mapeamento de uso da Terra do Munícipio de São Pedro do Sul – RS. XV Simpósio Brasileira de Geografia Física Aplicada, Vitória, ES, 2013.

TRENTIN, R; ROBAINA, L. E. S.; Mapeamento Morfolitológico da Bacia Hidrográfica do Rio Itú. VI Simpósio Nacional de Geomorfologia. Goiânia-GO, 2006. Universidade Federal de Santa Maria.

SOARES, M. R. G. J; SOUZA J. L. M.; Análise Morfométrica da Bacia Hidrográfica do Rio Pequeno em São José dos Pinhais (PR). Revista Geografia: Londrina, v. 21, n. 1, p. 019 – 036, jan/abr, 2012.

STRAHLER, A. N. Hypsometric (area-altitude) analysis of erosional topography. Geological Society of America Bulletin, 1952.Vol. 63, p. 1117-1142.

VILLELA, J. V.; MATTOS, A. Hidrologia Aplicada. São Paulo: McGraw-Hil do Brasil,




DOI: http://dx.doi.org/10.5902/2179460X18820

Refbacks



Copyright (c)



Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.