Isotopic Study of the Effect of Tarbela Reservoir on the Groundwater System inthe Downstream Areas

摘要

Isotopic studies were carried out on the right side of Indus River, downstream ofTarbela dam to study the effect of Tarbela Reservoir on the groundwater system. The main objectives of the study were to determine the hydraulic connection, if any, between the Tarbela Lake and the groundwater appearing in the ponds near Gadoon Amazai, see the effect of Tarbela dam on the groundwater system in the downstream areas, compute the relative contribution of different recharge sources towards groundwater system and to estimate residence time of groundwater in the area.