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水是生命的源泉。用水量的增长幅度和各类用水的比率反映了一个国家工农业发展速度和人民生活水平。我国水资源年均总量约2.8万亿立方米,居世界第六位,但人均仅2380立方米,不到全球人均10000立方米的四分之一。我国水资源在地区分布上也很不平衡,西部、北部都严重缺水,以华北平原为例,人均水资源占有量只相当全国人均数的五分之一。据有关部门调查,全国80%以上的大中
Water is the source of life. The rate of increase in water use and the ratio of various types of water reflect the speed of development of a country’s industrial and agricultural sectors and the people’s living standards. The average annual total water resources of China is about 2.8 trillion cubic meters, ranking sixth in the world, but its per capita is only 2,380 cubic meters, less than a quarter of the world’s 10,000 cubic meters per capita. China’s water resources are also unevenly distributed in the region. There are serious water shortages in the west and north. Taking the North China Plain as an example, the per capita water resources share is only one-fifth of the national average. According to the investigation of relevant departments, more than 80% of the country’s large and medium-sized schools