Estimación del balance hidrológico y evaluación de la calidad del agua en la cuenca la Marquesa, cantón Cotacachi provincia de Imbabura

Abstract

In this project, the hydrological balance is estimated and the quality of the water in the La Marquesa basin is evaluated. The water supply was determined through empirical calculations and with the ArcGIS 10.5 software, analyzing: the monthly rainfall records, the potential evapotranspiration together with the Budyko expression to calculate the real evapotranspiration and subsequently the amount of water was determined, with the fundamental equation of hydrology. The surface availability of water was determined through the water balance that is equal to the supply minus the water demand values in the study area. Finally, a capacity campaign was carried out in the closing area of the basin to quantify the amount of water. During the months of June and October, these values were obtained to indirectly validate the estimate of the theoretical supply. The water quality was verified in the months of June to September 2019, once a month, the values of: pH, DO and Temperature, were evaluated in situ while the Alkalinity, Hardness, BOD5, COD, Fecal Coliforms and Coliforms total were conducted at the LDIA.