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我国是一个严重缺水的国家,人均淡水资源只有世界人均水平的3/10,居世界121位。因为缺水已经严重影响了国民经济的发展,使每年工业产值约减少2300多亿元,成为国民经济,特别是北方和沿海地区经济可持续发展的一个急待解决的重大问题。为此,人们开始认识到向大海要水是一个重要出路。众所周知,海洋占地球面积的71％,是一个巨大的水体。在这个海水水体中,淡水占96.5％,各种物资占3.5％,它们都是人
China is a country that suffers from severe water shortages. Its per capita freshwater resources are only 3/10 of the world average, and it ranks 121 in the world. Because water shortages have seriously affected the development of the national economy, and the annual industrial output value has been reduced by about RMB 250 billion, it has become a major issue to be solved urgently in the national economy, especially in the economic development of the north and coastal areas. For this reason, people began to realize that water supply to the sea is an important way out. As we all know, the ocean accounts for 71% of the Earth’s area and is a huge body of water. In this sea water body, 96.5% of fresh water and 3.5% of various materials are humans.