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Groundwater needs to be replenished by surface waters, and this supplement is often not simply supplemented by geological structures. Groundwater in some areas is supplemented by surface water from Other areas. When the groundwater recharge and production are balanced, the groundwater level will remain stable and there will be no water level drop funnel. When the local geological structure is destroyed, the groundwater recharge source is cut off or the groundwater extraction exceeds the recharge amount, a groundwater level drop funnel is formed. Occasionally, temporary over-exploitation, the groundwater drop funnel will gradually recover. Long-term, large amount of over-exploited groundwater, the groundwater level is too late to recover, the underground funnel will become larger and larger, causing a series of geological and ecological aspects such as subsidence of the ground, scrapping of wells, increased cost of groundwater exploitation, and hindered industrial and agricultural production. Environmental issues. In addition, mine excavation or geological changes have destroyed the groundwater aquifer, which will also cause a sharp drop in groundwater, forming a water level drop funnel.
January 23, 2024