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中国水资源总量每年2.8万亿立方米,人均淡水资源量约2300立方米,仅为世界人均水平的1/4.加之大气降水和地表水时空分布极不均衡,水污染不断加重,水资源供需矛盾日益突出。我国地下水天然资源量每年9234亿立方米,占全国水资源总量的1/3,地下水在全国总供水量中所占的比重在20%左右,在北方地区占52%,在华北、
China’s water resources total 2.8 trillion cubic meters a year, with a per capita freshwater resource of about 2,300 cubic meters, only 1/4 of the world average. Coupled with the extremely uneven temporal and spatial distribution of atmospheric precipitation and surface water, water pollution continues to increase, water resources The contradiction between supply and demand has become increasingly prominent. The total amount of groundwater in China is 932.4 billion cubic meters per year, accounting for one-third of the total amount of water resources in the country. The proportion of groundwater in the total water supply in China is about 20%, accounting for 52% of the total in North China. In North China,