The main purpose of this paper is to apply a water balance concept with two models in the
Ching-Shui watershed to describe the groundwater recharge. First of all, a soil moisture
budget model is established to estimate the infiltration, runoff, evapotranspiration, and
groundwater recharge in the watershed, where the moisture content of the soil is tracked
through time. Secondly, the groundwater recharge was also estimated by the model of the
base-flow-record estimation, with the assumption that groundwater evaporation is negligible …

Sustainable development, use and management of groundwater resources is a challenge
under the current population growth, land degradation, climate change and economic
development require proper quantification of groundwater recharge. Therefore, this study
anticipated the amount, spatial and temporal variability of groundwater recharge at the
Bulbul River Catchment of Gilgel-Gibe River Basin (Ethiopia) using the soil mass balance
method in conjunction with base-flow separation method. Theresult shows coefficient of …