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人类的整个生命活动与水有着最紧密的联系,水是人类文明存在的先决条件。随着经济发展,人口增加并日趋城市化以及物质和文化生活的提高,人类社会对水资源的需求量日益增长。但由于地球上可供人们直接利用的淡水资源仅占全球总量的3/1000左右,加之它在时空分布上的不均一性,而且随着工业化程度的提高,水资源的污染也日益严重(如莱茵河已成了欧洲的“污水
The whole life activity of mankind has the closest connection with water, and water is the prerequisite for the existence of human civilization. With economic development, population growth and urbanization and the improvement of material and cultural life, the human society has an increasing demand for water resources. However, as freshwater resources available directly to people on the earth account for only about 3/1000 of the global total, coupled with its uneven distribution in time and space, and as the degree of industrialization increases, the pollution of water resources is also becoming increasingly serious ( If the Rhine has become Europe’s "sewage