Análise morfométrica e dinâmica de uso e cobertura da terra da bacia hidrográfica do Ribeirão João Leite: insumos para avaliação da infiltração e escoamento superficial

• Autor(a) principal: Cruz, Vitor Pereira
• Data de Publicação: 2023
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UFG
• dARK ID: ark:/38995/001300000212z
• Texto Completo: http://repositorio.bc.ufg.br/tede/handle/tede/12960
• topic: Bacia hidrográfica; Mapbiomas; Morfometria; Hydrographic basin; Mapbiomas; Morphometry; CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::GEOGRAFIA FISICA::HIDROGEOGRAFIA

Water is an important element for the maintenance of global production systems and for social sustainability. To avoid the problems related to the impacts of water security, one of the main forms of studies is with the river basins. Attention is drawn to the Ribeirão João Leite Hydrographic Basin BHRJL, which already has serious maintenance problems, considering that, of the 491 springs that feed it, only 70 are properly protected and another 23 can no longer be recovered. The hypothesis of the work considers that the hydrographic basin of the Ribeirão João Leite over the years will not be able to provide the same water capacity necessary for the region. The work aimed to carry out a spatio-temporal mapping of land cover and use to evaluate the hydrological behavior of water infiltration in the soil in order to evaluate the hydrological behavior of infiltration and surface runoff of water in the soil within the BHRJL. to evaluate the water infiltration capacity in the basin. The work used methods and techniques of environmental analysis and geoprocessing, acquisition of land cover and use mapping made available by the MapBiomas project was carried out and evaluation of morphometric characteristics were used scenes of images from MDE to evaluate the water infiltration capacity in the basin. The analyzes of land cover and use showed that BHRJL underwent a significant dynamic in occupation, mainly in pasture areas because it has the highest percentage of area in geoprocessing of the basin. Through the analyzes of BHRJL's morphometry, it was understood that it is not prone to flooding, and has average drainage rates, with high ease of surface runoff. In relation to erosion and sediment loading, it has medium potential, thus understanding that the basin has an average favoring for BHRJL's water recharge.