全国地下水资源普查工作于1995年全部完成,普查结果表明:全国地下水天然资源总量为8700亿 m~3/a,可开采资源量为2900亿m~3/a,其中2/5集中在北方各大平原和盆地。泉和地下暗河利用水量约为600亿 m~3/a,主要分布在四川、云南、贵州、湖南、湖北等岩溶地 The census of groundwater resources in China was completed in 1995. The census results show that the total amount of natural groundwater resources in the country is 870 billion m 3 / a and that of recoverable resources is 290 billion m 3 / a, of which 2/5 is concentrated in the north The major plains and basins. The water used by the springs and underground rivers is about 60 billion m 3 / a, mainly distributed in karst areas such as Sichuan, Yunnan, Guizhou, Hunan and Hubei