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Groundwater-related subsidence is the subsidence (or the sinking) of land resulting from unsustainable groundwater extraction.It is a growing problem in the developing world as cities increase in population and water use, without adequate pumping regulation and enforcement.
When groundwater is extracted from an aquifer, a cone of depression is created around the well.As the drafting of water continues, the cone increases in radius. Extracting too much water (overdrafting) can lead to negative impacts such as a drop of the water table, land subsidence, and loss of surface water reaching the streams.
The over extraction of groundwater is a human caused activity that causes these ground failures that create pore spaces where water once was occupying. The sudden sinking of the soils surface causes infrastructure damage and a higher risk of flood damage due to the displacement of the Earth's surface.
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An irrigation scheme draws water from groundwater, rivers, lakes, or overland flow, and distributes it over a certain area. Hydrological , or direct, effects of doing this [ 1 ] include reduction in downstream river flow, increased evaporation in the irrigated area, increased level in the water table as groundwater recharge in the area is ...
“Unfortunately, no use of groundwater has been determined by the courts to be ‘unreasonable.’ It’s basically a rule that benefits the biggest landowners with the deepest wells.’” Mayes told reporters Wednesday that the Arizona Legislature has done nothing to fix the groundwater problem despite knowing about the problem for years.
Groundwater extraction The economic loss caused by ground subsidence in Shanghai from 2001 to 2020 amounted to over 24.57 billion yuan. Restriction of groundwater use, artificial recharge with treated river water, and adjustment of pumping patterns [80] [81] Tehran, Iran Alluvial sediments 217 (2017-2019) Groundwater extraction [41] [82] [83]
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