NATURAL VULNERABILITY AND RISK OF SOILS IN THE AREAS OF THE GUARANI AQUIFER´S RECHARGE IN THE STATE OF GOIÁS, BRAZIL

Authors

  • Thais Moreira Alves Universidade Federal de Goiás
  • Selma Simões de Castro Universidade Federal de Goiás

DOI:

https://doi.org/10.5216/bgg.v29i1.7302

Abstract

This paper aims to present the estimate of the natural vulnerability and risk of soils, in the areas of the Guarani aquifer’s recharge, in the State of Goiás (SAG/GOIÁS). To establish the classes of vulnerability of these soils, the lands map of declivity was crossed with the hydraulic conductivity one, and the following classes were obtained: low, moderate, high and very high. It was evaluated that 45% of the recharge areas has very high vulnerability, and 47% are considered high class, togheter these areas represent more than 90% of the total area of occurrence of the Guarani aquifer in the State of Goiás which inspires specific care in regards of use and handling of the lands. 32,8% of the recharge areas has high risk and 27,5% has very high risk, 60% of the total of the area.

 

Key-words:

 

Guarani Aquifer. Vulnerability. Risk of contamination.

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Author Biography

Thais Moreira Alves, Universidade Federal de Goiás

Mestranda do programa de pós-graduação do instituto de Estudos sócio Ambientais da Universidade Federal de Goiás

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Published

2009-09-10

How to Cite

MOREIRA ALVES, T.; SIMÕES DE CASTRO, S. NATURAL VULNERABILITY AND RISK OF SOILS IN THE AREAS OF THE GUARANI AQUIFER´S RECHARGE IN THE STATE OF GOIÁS, BRAZIL. Goiano Bulletin of Geography, Goiânia, v. 29, n. 1, p. 135–150, 2009. DOI: 10.5216/bgg.v29i1.7302. Disponível em: https://revistas.ufg.br/bgg/article/view/7302. Acesso em: 22 nov. 2024.

Issue

Vol. 29 No. 1 (2009): jan./jun. 2009

Section

Artigos

License

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