Evaluación piloto del estado hidrológico actual de la microcuenca Sácama, municipio Sácama – Casanare, aplicando el modelo SWAT (Soil and Water Assessment Tool).

Abstract

Hydrological modeling is a fundamental tool in the management, planning and use of water resources, since it shows in a quantifiable way the points or causes of possible problems that may affect an area from the hydrological point of view. In this research, the pilot evaluation of the current hydrological condition of the Sácama Microbasin, Sácama - Casanare municipality was carried out, implementing the SWAT (Soil and Water Assessment Tool) model, which is a dynamic model in space and time, of hydrological simulation. Following the methodology described in chapter 5 of this research "Execution of the model", it was obtained that the microbasin is in the equilibrium phase or the maturity stage, so it does not present great erosive potential, in addition, 484 response units were generated hydrological, which are directly related to the homologation of land cover. On the other hand, a Nash and Sutcliffe efficiency value of 0.402 to 0.595 was achieved, which under the criteria of Molnar (2011) classifies the calibration of the model as good, also, volumetric gauges were made to know the percentage of error of the real flows vs the simulated flows, obtaining -1.22% for the month of October and 0.80% for the month of November of the current year, finally, in order to provide quality and useful information for decision-making in the management of the water resource of this municipality; The sub-basins with the greatest water potential were identified.