A influência da drenagem urbana nas enchentes rurais: estudo de caso no município de São Jorge D’oeste - PR

Abstract

The purpose of the research is to study the Faxininha river basin, located in São Jorge D'Oeste, Paraná Southwest, with intent identify possible causes of the floods occurred in the rural area within the city hall. The methodology is based on study the watershed morphometry and use of soil in the area, making a photographic mapping with the photography registers exist in the city hall and make a field research to better visualize the environmental conditions of watershed study. With the use of its soil map was found that 68.26% of watershed area study correspond at agriculture, 25.79% to the forests and 5.95% urban area. In the urban area density of riparian vegetation is sparse or inexistent. Various environmental concerns related to anthopic action were identified, as river bed occupancy, siltation, sparse or inexistent riparian vegetation, trash accumulated in the river area, sewage into the river, and others observations. The anthopic interference in the urban area of the city hall results in aggravating factor for downstream rural areas, causing losses at population living here. The preliminary diagnosis was possible, in relatively short scientific experimentation time, because of differentiated methodological approach in the construction of descriptive scenarios.