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我国是世界上13个最缺水的国家之一,人均淡水资源仅为世界人均水平的四分之一,水资源危机的警钟已经敲响.与此同时,城市防洪又是很多城市面临的重要课题.把雨水拦截并储存起来,留到用水高峰或者缺水季节利用,这既可缓解甚至解决城市缺水难题,又可减轻乃至避免洪涝灾害,真可谓化害为利,变废为宝.大雨对于缺水的城市来说简直是一种大自然的恩赐.让我们看看各个国家对城市雨水利用的先进经验
China is one of the 13 most water-scarred countries in the world, with per capita freshwater resources a quarter of the world average, and the wake-up call of the water crisis has been ringing.At the same time, urban flood control is also important to many cities The task of intercepting and storing the rainwater to the peak water use or water shortage season can ease or even solve the water shortage problem in cities and reduce or even prevent flood disasters. Heavy rain is simply a gift of nature to the cities that are in short supply. Let us look at the advanced experience of urban use of rainwater in various countries