The water quality characteristic of urban road runoff and the situation of pollution control play important roles in the realization of the road rainfall harvesting irrigation.

道路径流水质特点以及污染物控制情况对道路集雨灌溉实现起着至关重要的作用。

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Among these figure water-harvesting technologies and drip irrigation, as well as technologies that recycle grey water in peri-urban agriculture.

UNESCO: World Water Assessment Programme (WWAP)