LI Guo-jun,WANG Yong,LIANG Zhen-kai,et al.Evaluation of Regionalized Effect of Sponge City Construction[J].China Water & Wastewater,2020,36(14):76-80.
海绵城市建设区域化效果评估探讨
- Title:
- Evaluation of Regionalized Effect of Sponge City Construction
- Keywords:
- sponge city; regionalized effect of sponge city construction; the volume capture ratio of annual rainfall; runoff pollution reduction
- 摘要:
- 为更加有效地推进海绵城市建设,有必要对海绵城市建设效果进行考核评估,其中对区域化面积内海绵城市建成效果的评估尤为重要。以杭州市为例,对海绵城市建设后区域化效果评估的一些难点进行了探讨,包括区域化范围界定、年径流总量控制率的本底分析、区域化面积折算、径流污染削减等多个方面,建议采用流域性串联成片区域化的方式进行整体评估,并采用搭建数学模型进行定量化、精细化评估,以弥补部分地区监测设施配置的不足。针对该方法在杭州市海绵城市区域化评估中的应用,提出不同地区海绵城市建设的策略和效果评估应因地制宜、有所区别,径流污染削减率不宜划定统一的参数值,应结合各地实际情况选取合理指标。
- Abstract:
- In order to promote sponge city construction more effectively, it is necessary to evaluate the construction effect of sponge city, in which the evaluation of the construction effect of sponge city within the regionalized area is particularly important. This paper took Hangzhou as an example to discuss some difficulties in the regionalized effect evaluation after the construction of sponge city, which included regionalization scoping,the volume capture ratio of annual rainfall background analysis, the discount method of sponge city regional area,and the reduction rate of runoff pollution. It was recommended that using watershed regionalization method to evaluate the whole effect, and using mathematics model to make quantitative and fine evaluation to supplement the shortage of monitoring facilities in some areas. Through the application of new methods for Hangzhou sponge city regionalized evaluation, it was proposed that the strategy and effect evaluation of sponge city construction in different areas should be adapted to local conditions, and the runoff pollution reduction rate should not be delimited and unified parameter value, and reasonable indicators should be selected according to the actual situation.
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