Hydrological and Dynamics Modeling of Land Use in the Cachoeira River Basin Bahia, Brazil
Hydrological Model; COUP; Geographic Information System; Land use.
Among the essential natural resources, water has a significant prominence, as its maintenance in ideal conditions is necessary for all types of life on the planet. However, several factors have caused negative impacts on water resources. Thus, for the proper management of water resources, it is essential to know the hydrological behavior of hydrographic basins, their flow variation regimes and, mainly, their relationships with the economic and socio-environmental agents present in the basin's contribution area. In this sense, this study was proposed, which aimed to test the hypothesis that there is a modelable relationship between the area of vegetation cover and the hydrological response in the watershed of the Cachoeira River, using SWAT. SWAT is a hydrological model that allows representing different physical processes in a watershed, such as evapotranspiration, infiltration, water flow, among others, with the objective of analyzing the impacts generated by changes in land use on the flow (surface and underground), sediment production and also water quality. Regarding land use in the basin, the increase in urbanized, mining and other non-vegetated areas for the period from 2010 to 2019 stands out.