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Within a long period of groundwater depletion in California's Central Valley, short periods of recovery were mostly driven by extreme weather events that typically caused flooding and had negative social, environmental and economic consequences. [1] Overdrafting is the process of extracting groundwater beyond the equilibrium yield of an aquifer.
This is an accepted version of this page This is the latest accepted revision, reviewed on 15 January 2025. Water located beneath the ground surface An illustration showing groundwater in aquifers (in blue) (1, 5 and 6) below the water table (4), and three different wells (7, 8 and 9) dug to reach it. Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in ...
groundwater-related subsidence [21] of the land due to mining of groundwater occurred in the United States at a rate of 1m for every 13m that the water table was lowered [22] Homes at Greens Bayou near Houston , Texas , where 5 to 7 feet of subsidence has occurred, were flooded during a storm in June 1989 as shown in the picture [ 23 ]
They said that groundwater, which sustains communities, food production and ecosystems, is a strategic resource in the face of climate change, and that addressing depletion is vital for the ...
Land subsidence caused by groundwater depletion is also a major concern, with the ground having sunk as much as 2.4 feet in some areas since 2015, Stork said. ... state officials have repeatedly ...
Groundwater depletion is worsening in many of the world's farming regions. But a global study also found that some efforts are helping to boost aquifers.
Groundwater recharge or deep drainage or deep percolation is a hydrologic process, where water moves downward from surface water to groundwater. Recharge is the primary method through which water enters an aquifer. This process usually occurs in the vadose zone below plant roots and is often expressed as a flux to the water table surface.
Excessive groundwater pumping has long been depleting aquifers in California's Central Valley. Now, scientists say the depletion is accelerating.