Artificial groundwater recharge
Artificial recharge is needed due to the overuse
of water due to rapid industrialization, population increase, intensive
agriculture, urbanization. Artificial GW recharge is needed in the area of
overexploitation of GW, desaturation of the aquifer, poor quality of GW, saline
water intrusion (coastal belt), and drying of wells and pumps during the lean
period. Groundwater can be artificially recharged directly by redirecting water
across the land surface through contour
bunding, percolation tank, check dam, dug out pond;
and indirectly through recharge
shafts, injection wells and subsurface dykes.