Evaluation of the superficial water balance of the hydrographic sub-basin of the Jipijapa river

Abstract

This article entitled: Evaluation of the surface water balance of the Jipijapa river sub-basin, is located in the Jipijapa canton of the Manabí province - Ecuador, whose objective is: to evaluate the surface water balance of the Jipijapa river sub-basin from the characterization of climate elements such as: precipitation, temperature and evapotranspiration in the period between 2008 - 2021. Methods were used at a theoretical level such as: analysis - synthesis of meteorological data, historical - logical behavior of climate elements. To obtain evapotranspiration, the Thornthwaite method was used. At an empirical level, the observation guide method was applied in the upper, middle and lower part of the Jipijapa river sub-basin. From this perspective of analysis, the results are presented in average data of 13 years, of precipitation 52.6 mm/year, temperature 24.4 ºC and evapotranspiration 163.8 mm/year. In relation to the previous one, the water balance presents episodes of significant sequences in every year, that is, it presented superficial water deficiency in the sub-basin, so it tends to be negative. The environment and the physiography of the Jipijapa river sub-basin area were discussed and the water deficit increased by applying education in relation to environmental management. In conclusion, it is considered that the water balance of the proposed period is negative and the sub-basin is subject to drastic changes due to the behavior of the climate.