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Updated: Jun 2, 2025

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Design and Construction of an Urban Runoff Research Facility
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通过基于证据的规划的综合洪水风险指数建立有弹性的城市排水系统
Shakeel Ahmad1, Xuanrong Peng2, Anam Ashraf3
1School of Environment, Tsinghua University, Beijing, 100084, China.
Journal of environmental management
|January 15, 2025
概括
本研究引入城市洪水风险指数 (FRI) 来评估城市洪水风险. 结果显示,低影响发展 (LID) 实践有效降低了洪水风险,提高了城市的性.
科学领域:
- 环境科学 环境科学
- 城市规划 城市规划
- 适应气候变化 适应气候变化
背景情况:
- 城市洪水是由于城市化和气候变化而日益严重的全球威胁.
- 有效的洪水风险管理需要综合社会,经济和环境评估.
- 现有的方法缺乏一个全面的分类捕捞水平风险量化工具.
研究的目的:
- 开发和验证一个创新的城市洪水风险指数 (FRI) 用于分捕获级别的评估.
- 通过整合多种影响因素来量化洪水风险.
- 为基于证据的城市规划和弹性基础设施开发提供一个工具.
主要方法:
- 地理信息系统 (GIS),风暴水管理模型 (SWMM),分析层次过程 (AHP) 和压力状态响应 (PSR) 框架的整合.
- 开发一个加权的洪水风险指数 (FRI),使用7个压力/状态和3个响应指标.
- 根据计算的FRI值,将洪水风险分为五个级别.
主要成果:
- 51%的研究区域呈现高压,26%的非常高压.
- 55%的地区处于中等状态,21%处于高状态.
- 低影响开发 (LID) 实践显示出显著的有效性,20%的地区显示出高至非常高的响应水平,导致整体中等的洪水风险.
结论:
- 开发的城市洪水风险指数 (FRI) 是一个有价值的工具,用于分捕获区级洪水风险评估.
- 低影响发展 (LID) 实践在减轻城市洪水风险方面发挥着至关重要的作用.
- 该研究使决策者能够优先考虑干预措施,并制定适应性策略,以提高城市弹性.
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