Aquifer recharge refers to the process of replenishing groundwater resources by adding water to underground aquifers through natural or artificial methods. This is an important aspect of water resource management, especially in areas where groundwater levels are declining due to over-extraction or drought conditions. Recharge can occur through precipitation, surface water infiltration, or techniques such as artificial recharge wells or injection of treated wastewater. Aquifer recharge studies focus on understanding the mechanisms and rates of recharge, as well as developing effective strategies for maintaining sustainable groundwater supplies. By replenishing aquifers, recharge helps to maintain water quality, support ecosystems, and ensure a reliable source of water for human consumption and agricultural activities.