论文部分内容阅读
水是地球上万物的命脉所在,它滋润万物、哺育生命、创造文明。在现代工农业生产、经济发展和环境改善中,水更是不可替代的自然资源。随着世界济经的发展,不少地区和国家水资源的供需矛盾正日益突出。我国水资源总量为每年2.8万亿立方米,实际可利用量约为每年8000亿~9500亿立方米,居世界第六位。但是,我国人均水资源占有量只有每年2300立方米,仅占世界人均水平的1/4,是世界上13个贫水国家之一。亚洲银行有关研究表明,2030年中国预计有约700亿立方米用水缺口。我
Water is the lifeblood of all things on earth, it nourishes everything, nurtures life and creates civilization. In modern industrial and agricultural production, economic development and environmental improvement, water is an irreplaceable natural resource. With the economic development in the world, the contradiction between supply and demand of water resources in many regions and countries is becoming increasingly prominent. The total amount of water resources in our country is 2.8 trillion cubic meters per year. The actual availability is about 800 billion to 950 billion cubic meters per year, ranking sixth in the world. However, China’s per capita water resources occupy only 2,300 cubic meters per year, accounting for only 1/4 of the world average, making it one of the 13 water-poor countries in the world. Research by the Asian Bank shows that by 2030 China estimates about 70 billion cubic meters of water shortage. I