中国北方城市雨水资源利用探讨

简介国内外雨水利用概况,分析中国北方城市雨水利用的必要性和可行性,并对几个典型的中国北方城市的年均雨水资源化潜力以及石家庄市单次强降雨产生的雨洪资源利用潜力进行了计算。计算结果表明,北京、天津、西安、太原、郑州、石家庄、济南的年均雨水资源化潜力依次为1.6559、0.9573、0.4756、0.3149、0.5037、0.3243、0.3674亿m3。文末简单介绍了城市雨水综合利用的方法,认为城市雨水的合理收集利用,不仅能有效缓解水资源供求矛盾,带来可观的经济效益,还具有改善城市生态环境等功效,具有广阔的发展前景。

Investigation on utilization of rainwater resources in North China cities

This article summarizes the current development of rainwater utilization, and analyzes the necessity and feasibility of utilizing rainwater resources in North China cities. The average annual potential of rainfall resources was calculated for several typical cities in North China, and the potential resource of a single rainstorm was calculated for the city of Shijiazhuang. The results showed that the average annual potential of rainfall resources for Beijing, Tianjin, Xi＇ an, Taiyuan, Zhengzhou, and Jinan were 1.6559, 0.9573, 0.4756, 0.3149, 0.5037, and 0.3243 （×10^8） m^3, respectively. The methods of comprehensively utilizing rainwater were simply presented. Utilizing rainwater not only relieves the tension between water supply and demand in cities and brings considerable economic benefits, it also improves the urban t. Therefore, rainwater utilization has a bright future.