T/SMKX 001-2020 The determination of critical water level

Scope

Scope: In the arid and semi-arid regions north of the Yangtze River in China, surface water and groundwater are considered a unified water body; various water sources such as streams, springs, wells, group wells, large-scale groundwater extraction and utilization, drop funnels, surface and underground reservoirs, etc. are included; especially drinking water, mineral water, geothermal water, Tanggangzi spring mud, oil fields, seaports, power plants, and rural areas, etc. All these dedicated water sources are aimed at fundamentally preventing over-extraction and pollution, strictly preventing water shortages and "disasters", giving full play to the natural purification function of underground aquifers, achieving sustainable utilization of water resources, and making every effort to serve the construction of a green and ecological homeland where life and water coexist in harmony! Main technical content: 1. How to prevent over-extraction and pollution in the exploitation and utilization of various water sources such as springs, wells, surface water, and underground reservoirs within the watershed, and ensure the sustainable utilization of water resources, preventing the over-extraction of water resources and the natural purification of water quality resources; 2. In arid and semi-arid regions such as Shenyang, Liaoning, Northeast China, and North China, after more than 100 years of theory and practice, most water sources within the watershed take the form of water collection wells. When there is no rainfall, how to ensure the sustainable utilization of these water sources during their exploitation and utilization, or where is the bottom line for maintaining the life-sustaining water resources? This is the "Critical Water Level"; 3. If water is pumped from water sources above the "Critical Water Level", the water volume can be maximized and stabilized, and the water can be naturally purified; 4. The critical water level of water sources is the high integration o

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