Assessments of Effect of Land-use change in Groundwater Storage
Assessment of effects due to land use change in groundwater storage is performed in Kathmandu Valley basin of 651 km2. Effect of land use change is found to be more in groundwater than surface water. Increased impervious area due to land use change has been major factor in contributing to decreased infiltration. The ground water storage is depleting due to fact that the extraction of groundwater to fulfill the demand of rapidly growth urbanization with constant surface water available and portion of the water infiltrating for groundwater storage is reduced due to increase in imperviousness.