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我国是一个干旱缺水严重的国家。我国的淡水资源总量为28000亿立方米,占全球水资源的6%,仅次于巴西、俄罗斯和加拿大,名列世界第四位。但是,我国的人均水资源量只有2300立方米,仅为世界平均水平的1/4,是全球人均水资源最贫乏的国家之一。然而,中国又是世界上用水量最多的国家。仅2002年,全国淡水取用量达到5497亿立方米,大约占世界年取用量的13%,是美国1995年淡水供应量4700亿立方米的约1.2倍。世界各地有很多水资源短缺的地区和国家,让我们一起看看这些地区和国家如何实现水资源的高效利用。
Our country is a country with serious drought and water shortage. China’s total freshwater resources are 2.8 trillion cubic meters, accounting for 6% of global water resources, second only to Brazil, Russia and Canada, ranking the fourth in the world. However, the per capita water resources in our country is only 2,300 cubic meters, only 1/4 of the world average, making it one of the poorest countries in the world in per capita water resources. However, China is again the country that consumes the most water in the world. In 2002 alone, freshwater access to the country reached 549.7 billion cubic meters, accounting for about 13% of the world’s annual usage, about 1.2 times the U.S. supply of 470 billion cubic meters of freshwater in 1995. There are many water-scarce regions and countries around the world and let’s see how these regions and countries can make more efficient use of water resources.