The need to have computer models is fundamental for the correct management of water resources. In recent years, the use of hydrological simulation models at the basin level is having greater relevance, their need analysis related to hydraulic works, land use change, reforestation activities, etc. to the facilities that provide a simulation model, it has become a handy tool in the management of watersheds.
SWAT (soil and water evaluation tool) is a basin-scale hydrological model developed by the United States Department of Agriculture (USDA) and the University of Texas (TAMU). SWAT allows quantifying the impact of soil conservation practices on the production of water, sediments, nutrients and chemical substances in a basin and the operation on a daily, monthly and annual scale for different climates from arid and semi-arid regions to humid zones and tropical