 The fraction of precipitation that becomes groundwater is determined by soil characteristics and surface vegetation. Changes in the vegetation cover and modifications in the landscape can impact the amount of water infiltrating into the aquifer. When soil is eroded, rainwater runoff increases, which reduces the rate at which precipitation infiltrates and recharges groundwater in aquifers. Aquifer recharge happens naturally through infiltration mechanisms. As part of the hydrologic cycle, precipitation that falls on the land surface may infiltrate into the ground. It first reaches the belt of soil water, which can be reached by the roots of plants. The fraction of water, which is not drawn by plants or evaporated, is pulled down by gravity until it reaches the water table, becoming groundwater. Groundwater moves in and out of aquifers. This movement may occur naturally or artificially. Recharge of aquifers can be enhanced artificially by increasing the availability of the water supply for recharge. This is done with the intention to store and treat water in aquifers. The artificial recharge of aquifers is also known as managed aquifer recharge. The managed aquifer recharge methods can be classified into surface systems, in-channel modifications, deep systems, filtration systems, rainfall, and sustainable urban drainage systems. The method or combination of methods used to recharge an aquifer depends on the local conditions. Aquifer recharge methods are well-spread and developed. In Europe, these methods play an important role in the drinking water supply, mainly because of their potential to treat water and attenuate undesired substances. In Australia and the United States, aquifer recharge methods are used to create a buffer of water for further usage during dry seasons, for non-potable and indirect potable reuse. In arid and semi-arid regions, due to high evaporation rates, subsurface storage of water becomes a major alternative over surface storage. The storage provided in the upper meters of soil and in shallow aquifers is an important water buffer and may be feasible for the implementation of low-cost technologies, such as sand dams, key lines, contour buns or ridges, check dams, and terraces. The application of these techniques creates microcatchments, which can provide a local water supply. This will also help to increase moisture in the soil and reduce soil erosion.