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大同市自20世纪80年代以来,由于降水量的减少和城市化进程的加快,市区现状人均水资源占有量仅为170 m3,远低于世界公认500 m3的严重缺水线,为全国人均水平的1/3。由于长期的超采,使得地下水位每年以2 m到2.8 m的速度急剧下降。地下水的过量超采,由此引发了地面沉降、泉水衰减、水质恶化等多种环境地质问题。为了市中心城区地下水资源的可持续开发利用,探索其现状分析及保护措施是非常必要与必须的。
Datong Since the 1980s, due to the decrease of precipitation and the speeding-up of urbanization, the per capita water resources in urban area is only 170 m3, which is far below the world-recognized severe water shortage line of 500 m3, 1/3 of the level. Due to the prolonged over-mining, the groundwater table drops drastically from 2 m to 2.8 m per year. Over-exploitation of groundwater, which led to the ground subsidence, spring attenuation, water quality deterioration and other environmental geological problems. For the sustainable development and utilization of groundwater resources in downtown area, it is very necessary and necessary to explore the status quo analysis and protection measures.