Methodology for Identification of Potential Sites for Artificial Groundwater Recharge in Punjab Province of Pakistan
Keywords:Groundwater, Artificial recharge, Aquifer, Lithology, Rainfall, Indus-River-Basin, Punjab, Pakistan.
Groundwater is a precious gift of nature and is being used for drinking, agricultural, industrial, livestock. In Punjab province of Pakistan groundwater is contributing about fifty percent towards irrigation water requirements where a large aquifer underlying the Indus River Basin (IRB) is being depleted rapidly. In the present research a methodology/criterion has been developed and applied for identification of the suitable sites for recharging the aquifer artificially in the Punjab province in Pakistan. Major activities carried out include the installation of exploratory boreholes, collection and analysis of soil and water samples, determination of aquifer parameter (hydraulic conductivity) in laboratory. Other field observations include observation of groundwater levels, land availability, water availability, and physiographic features. On the basis of field surveys and laboratory investigations, criteria for identification of potential sites for artificial recharge to augment the groundwater reservoir has been developed. Keeping in view the parameters adopted in the criteria, thirteen potential sites in the critical areas have been identified for artificial recharge to replenish the depleting groundwater levels. This research provides guidelines for the decision-makers for future investment for sustainable groundwater management.