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- Title
SUSCEPTIBILITY TO FLOODING AND URBAN FLOODING IN SMALL MUNICIPALITIES: HYDROGEOMORPHOLOGICAL, LAND USE AND LAND COVER ASPECTS IN A MULTI-CRITERION ANALYSIS.
- Authors
Avelar Guimarães, Édson; Miguel da Silva, Vinícius Vanderley; Umbelino, Luis Felipe; Mussi Molisani, Maurício; Lugon Júnior, Jader
- Abstract
Objective: To investigate areas susceptible to flooding and inundation, testing the hypothesis that the accumulation of surface water does not depend exclusively on fluvial flood pulses. Theoretical Framework: Anthropogenic actions have played a significant role in modifying natural physiography, especially through urbanization and occupation of environmentally sensitive areas. These interventions have a direct impact on the dynamics of natural processes, highlighting the need to understand local hydrogeomorphology in order to ensure efficient territorial planning. Methodology: The research comprised a multi-criteria analysis involving hydrological, geomorphological, land use and occupation data associated with precipitation data for a small municipality. This municipality has urban development in the area of influence of a main river in its catchment area. Results and Discussion: Around 52% of the municipality is urbanized with 95% on slopes ranging from 0 to 23°, upstream of a cumulative flow of 18,000. Rainfall is 1366 mm/year and tends to decrease, although there has been a 62% increase in flooding in recent years. Around 75% of the urbanized area is vulnerable to pluvial flooding, while the rest is subject to both pluvial flooding and fluvial flood pulses. Research Implications: Insights into how the results can influence urban planning practices, extending to the fields of hydrogeomorphology and land use and occupation management. Originality/Value: The methodology is simple and accessible to small municipalities and urban planning entrepreneurs. Its relevance is evidenced by the fact that it improves urban planning, minimizing socio-economic and environmental costs.
- Subjects
HYDROLOGY; GEOMORPHOLOGY; URBAN growth; FLOODS; SOCIOECONOMICS
- Publication
Environmental & Social Management Journal / Revista de Gestão Social e Ambiental, 2024, Vol 18, Issue 9, p1
- ISSN
1981-982X
- Publication type
Article
- DOI
10.24857/rgsa.v18n9-040