Estilos fluviais num ambiente semiárido, bacia do Riacho do Saco, Pernambuco

Authors

  • Jonas Otaviano Praça Souza Universidade Federal do Vale do São Francisco
  • Ana Clara Magalhães Barros Universidade Federal de Pernambuco
  • Antonio Carlos de Barros Correa Universidade Federal de Pernambuco

DOI:

https://doi.org/10.18055/Finis3737

Keywords:

Estilos fluviais, classificação fluvial, ambiente semiárido, bacia do Riacho do Saco

Abstract

O crescimento da preocupação ambiental tem aumentado a necessidade de adoção de políticas de gestão de recursos hídricos. A compreensão das características e comportamento dos ambientes fluviais é essencial para uma gestão apropriada, em especial nos ambientes secos, primordialmente ambientes instáveis. O objetivo desta pesquisa procurou identificar e descrever os estilos fluviais da bacia do riacho do Saco, semiárido do Nordeste Brasileiro, e analisar o comportamento de cada estilo fluvial. Para tanto foram usados dados ASTER GDEM, imagens QUICKBIRD e dados de campo, para identificar os elementos e características dos estilos fluviais. Na bacia do riacho do Saco foram identificadas quatro unidades de paisagem: área de cabeceiras, zona inundável, escarpa de falha e pedimento; as características desses compartimentos irão controlar os estilos fluviais, conjuntamente com os impactos antrópicos. Foram identificados sete estilos fluviais, entre eles canais de voçoroca na área de cabeceira, desenvolvidos em colúvios quaternários; canal preenchido na zona inundável; canais encaixados na zona de escarpa de falha; canal rochoso com planície de inundação descontínua na área pedimentar. A partir da identificação e caracterização dos estilos fluviais, a adoção de uma política para gestão dos recursos hídricos torna-se mais adequada.

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Published

2016-09-29

How to Cite

Souza, J. O. P., Barros, A. C. M., & Correa, A. C. de B. (2016). Estilos fluviais num ambiente semiárido, bacia do Riacho do Saco, Pernambuco. Finisterra, 51(102). https://doi.org/10.18055/Finis3737

Issue

Vol. 51 No. 102 (2016)

Section

Articles

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