Proposta de revitalização paisagística de cavas da bacia do rio Iguaçu na região metropolitana de Curitiba

Abstract

The purpose of this research was to analyze the current situation and define design guidelines for the landscape revitalization of sand holes located at Iguassu River Basin in Curitiba’s Metropolitan Region (RMC). This landscape proposal had a multidisciplinary profile. The worry about nature was explored through concepts such as Ecology, Environmentalism and Ecogenesis. The importance of open spaces and the relation between these and the urban context was analyzed along the history. After this general analysis, the research contextualized the studied area. The location at a water source area involved the analysis of restrictive environmental factors. Another issue was the RMC diagnosis from socioeconomic aspects, particularly about the process of illegal occupation. The revitalization proposal of the studied area is directly related to the characterization of water stored in the sand holes, which was based on limnological assessment of nine samples collected from April 2008 to November 2009. The analysis used parameters defined by the Environmental National Council. In general, the water of sand holes fits in the specified parameters, which means there was little influence of adjacent systems. The average calculation of Water Quality Index (WQI) showed that the water quality in the studied area was medium, except in Iraí River and in a sand hole negatively influenced by the Clean water overflow channel, which WQI was bad. Another developed activity was a floristic survey in order to use native species in landscape design. The result was a proposal organized into six main sectors: controlled mining; riparian vegetation recovery; constructed wetlands; damping; public recreation; environmental research and education.