Elaboração de um mapa de risco de inundação da bacia hidrográfica do córrego São Pedro, área urbana de Uberlândia-MG / Elab. of a inund. risk map of the watershed of the stream St. Pedro, urban area of Uberlândia-MG - DOI: 10.5752/P.2318-2962.2014v24n41p1
Resumo
Palavras Chave: Inundação; Morfometria; Mapa de risco; Bacias urbanas.
Abstract
The advancement of human occupation in areas of inundation risk cause negative impacts to the economy and potentiates social problems. The city of Uberlândia / MG has been suffering for along decades with episodes of inundations of significant proportions. One of the points city that is commonly inundated is the Governor Rondon Pacheco Avenue, a major transit corridors in the city, built on the São Pedro stream, whose watershed has predominantly urban occupation. Moreover, morphometric indices indicate that naturally the area tend to inundation in episodes concentrates of precipitation. The impermeabilization, especially in sectors with higher slope and closer to the main channel of the stream, accentuates the peaks of discharge, making the episodes of inundations more frequents and aggressives to urban structure. This work describes the steps of elaboration of a inundation risk map for the basin of São Pedro stream, crossing informations hypsometric, of slope and of land use and occupation. Such variables received differentiated weights, according to the methodology proposed by Saaty (1977), with adaptations. A risk map of inundation is an important tool for planning the urban occupation, and may subsidize preventive and corrective actions. The results demonstrate positive aspects of methodological guide traversed and can be useful for coping strategies of the problems.
Keywords: Inundation; Morphometry; Risk Map; Urban Watersheds
Texto completo:
PDFDOI: https://doi.org/10.5752/P.2318-2962.2014v24n41p1
Indexadores / Indexing
HELA
Escala Geográfica
GIGA German Institute of Global and Area Studies - Information Centre, Hamburg
Instituto Brasileiro de Informação em Ciência e Tecnologia (IBICT)
Sistema Eletrônico de Editoração de Revistas (SEER)