水是我们人类生命之源。尽管我国水资源总量为2.8万亿立方米,居世界第六位。但我国人均还不到世界人均占有量的1/4,仅相当于美国的1/5,加拿大的1/48。经验表明,只要有正确的用水观念、科学的用水制度和合理的用水方式,在“缺水”的状况下也完全能做到供需平衡。对此,本刊特组织了一组国外节约用水的文章,其目的是“他山之石,可以攻玉”,希望广大读者能从中得到受益。 Water is the source of our human life. Although China’s total water resources is 2.8 trillion cubic meters, ranking sixth in the world. However, the average per capita in China is less than 1/4 of the world average, only 1/5 of the United States and 1/48 of Canada. Experience has shown that as long as there is a correct concept of water use, a scientific water use system and a reasonable water use system, the supply and demand balance can be fully achieved under the conditions of “water shortage”. In response, we have organized a series of articles on water conservation abroad, with the purpose of “turning stones from other hills and getting jade”, and hope that readers can benefit from it.