我国是一个水资源大国,水资源总量居世界第6位;同时也是一个人均水资源小国,我国人均水资源仅为世界平均水平的1/4,居世界第121位,是世界13个人均水资源最贫乏的国家之一。我国水资源分布不均,大量淡水资源集中在南方。目前,我国约660个城市中有400多个缺水,其中近110个城市严重缺水。许多城市 China is a large water resource country with the world’s 6th largest total water resource and a small water resource per capita. China’s per capita water resource is only 1/4 of the world average and 121st in the world, One of the poorest countries in terms of water resources. Uneven distribution of water resources in our country, a large number of freshwater resources concentrated in the south. At present, there are more than 400 water shortages in about 660 cities in China, of which nearly 110 cities suffer severe water shortages. Many cities