“METODOLOGIA DE ELABORAÇÃO DA CARTA DO POTENCIAL EROSIVO DA BACIA DO RIO DAS VELHAS (MG)”

Authors

  • Britaldo Silveira Soares Filho Profa. Deptº de Geografia - IGC/UFMG Cia. Brasileira de Projetos e Empreendimentos
  • Valéria Amorim do Carmo Profa. Deptº de Geografia - IGC/UFMG
  • Wagner J. Nogueira Cia. Brasileira de Projetos e Empreendimentos

DOI:

https://doi.org/10.18285/geonomos.v6i2.169

Abstract

This paper concerns the methodology applied to the erosive potential analysis in the Rio da Velhashydrographic basin (Minas Gerais State, Brasil) along with the results obtained. This project aimed at theproduction of a digital map at a 1: 200 000 scale of the fragility of both natural and human-interferedenvironments in Rio das Velhas Basin. The adopted approach seeks to integrate the combined effects of aset of variables – relief, soil, climate and land use/land cover – to identify the environmental instability andto map the ecodynamic units. First, the cartographic variables were classified according to their degree ofenvironmental instability, these were later combined pair-wise and a set of decision rules was applied toproduce the final map. The results depicted well the major fragile areas in the basin, which should receivespecial care for their preservation. The developed methodology is easily implemented and flexible enoughto permit changing the decision rules to fit different criteria.

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Author Biography

Britaldo Silveira Soares Filho, Profa. Deptº de Geografia - IGC/UFMG Cia. Brasileira de Projetos e Empreendimentos

 

 

 

Published

1998-12-01

Issue

Section

Artigos