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全球水资源状况随着人类社会的进步和经济的发展,工业、农业、城市的日益扩展,特别是世界人口急剧增多,加之,人类活动失控,造成环境恶化,水资源污染及严重浪费,迫使世界水资源日趋匮缺。据材料统计:20世纪初,全球水消耗量为5000亿 m~3/y,到世纪末已增长为50000亿 m~3/y(增长10倍以上)1954年-1994年美洲大陆用水增加100%,非洲大陆用水量增加300%以上,欧洲大陆增加500%,而亚洲大陆增长幅度更高。地下水之开采量为5500亿 m~3/y(80-90年代),其中大于100亿m~3/y 的有10余个国家,占总开采量的8.5%。2001年3月在海牙召开的“第二届世界水资源论坛”部长
Global Water Resources With the progress of human society and economic development, the rapid expansion of industry, agriculture and cities, especially the world population, coupled with the loss of control over human activities, the deterioration of the environment, water pollution and serious waste, have forced the world Water resources are becoming increasingly scarce. According to statistics of materials: At the beginning of the 20th century, the global water consumption was 500 billion m 3 / y and it has been increased to 500 billion m 3 / y by the end of the century (a 10-fold increase) 1954-1944 Water use in the Americas increased by 100% , Water consumption in the African continent increased by 300% or more, the European continent increased by 500%, and the growth rate in the Asian continent was even higher. The exploitation of groundwater is 550 billion m 3 / y (80-90), of which more than 10 countries are over 10 billion m 3 / y, accounting for 8.5% of the total exploitation. March 2001 held in The Hague “Second World Water Forum ” minister