Perfil Geomorfológico de Maturidade da Bacia do Rio Paracatu (Geomorphological maturity profile of the Paracatu river basin )
DOI:
https://doi.org/10.26848/rbgf.v9.6.p2075-2081Keywords:
Perfil de equilíbrio, entropia, meta-estabilidade, geovulnerabilidade, evolução geomorfológica, ParacatuAbstract
Apresenta-se uma avaliação da maturidade do perfil geomorfológico da Bacia do Rio Parcatu, afluente do Rio São Francisco. As relações entre comprimento e queda média dos seguimentos de rios para cada ordem pelo método de Strahler são analizados por leis empíricas para comparação com um perfil teórico de máximo equilíbrio. Os resultados demonstram que a Bacia do Rio Paracatu está próxima de seu estágio máximo de maturidade, embora ainda não o tenha alcançado completamente. A partir do estudo aplicado, são tecidas reflexões sobre as possibilidades de investigação de bacias hidrográficas com base em abordagens de entropia, meta-estabilidade, geovulnerabilidade e evolução geomorfológica.
A B S T R A C T
An assessment of the maturity of the geomorphological profile of the Paracatu River Basin, a tributary of the São Francisco River, is presented. The relationship between length and average stream fall for each order using the Strahler method is analysed using empirical laws for a comparison to a theoretical profile of maximum equilibrium. The results show that the Paracatu River Basin is close to its maximum stage of maturity, though it has not achieved it completely. Based on this study, reflections are made about the possibilities to study this watershed based on entropy approaches, metastability, geological vulnerability and geomorphological evolution.
Keywords: Equilibrium profile, entropy, metastability, geovulnerability, geomorphological evolution, Paracatu.
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Copyright (c) 2016 Vitor Vieira Vasconcelos, Omar Pereira Campos, Paulo Pereira Martins Junior
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