ANÁLISE MORFOMÉTRICA DAS BACIAS HIDROGRÁFICAS DO RIO IVAÍ NO MUNICÍPIO DE MARINGÁ, PARANÁ, BRASIL

Abstract

River basins are relevant urban planning instruments to mitigate the degradation of watercourses due to anthropogenic action and knowledge of morphometric characteristics is essential to enable this planning. In this context, the objective of this work is to determine the morphometric characteristics of the hydrographic sub-basins that belong to the Ivaí river basin, in the municipality of Maringá, Paraná, Brazil. For this, geoprocessing instruments were used, such as QGIS and geographic information systems (GIS) for morphometric analysis. The results obtained were: sub-basin area, perimeter, slope of the main drainage, shape factor, drainage density, concentration time and longitudinal profile of the main river. These data are fundamental to understanding the hydrological dynamics of basins and their link with human and environmental actions, in addition to providing relevant contributions to future studies and effective regional planning of water resources and basins. However, some limitations, such as deprivation of resources and personnel, are identified, thus recommending that future research encompasses fieldwork and promotes the symbiosis of multidisciplinary approaches, also considering socio-economic, environmental panoramas and other areas of knowledge, for a holistic understanding. of the subject. In short, this research enriches the understanding of the sub-basins of the Ivaí River, providing subsidies for governments to manage sustainable policies on water bodies in Maringá and the region.