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气候适应框架促进社区风暴水管理
Ling-Wen Lu1,2,3, Matthew F Johnson4, Fang-Fang Zhu5
1State Key Laboratory of Regional and Urban Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
Environmental science & technology
|December 8, 2025
概括
基于自然的解决方案 (NbS) 优化雨水管理以适应气候变化. 具有成本效益的NbS方案改善了排水减少和去除,比高投资替代方案提供更好的财务回报.
科学领域:
- 环境工程 环境工程
- 城市规划 城市规划
- 适应气候变化 适应气候变化
背景情况:
- 城市雨水排放带来了重大的环境挑战,因基础设施老化和气候变化而加剧.
- 基于自然的解决方案 (NbS) 提供可持续的雨水管理与社会共同利益.
- 对NbS金融权衡和最佳配置的定量评估是有限的.
研究的目的:
- 开发一个框架来优化NbS空间配置.
- 在未来的气候变化下,实现度和流量减少的立法目标.
- 分析不同NbS计划的财务权衡和成本效益.
主要方法:
- 开发了一个多目标优化框架.
- 在中国宁波进行的案例研究,考虑了未来的气候场景.
- 在15年时间内进行的成本效益分析.
主要成果:
- 在气候场景中,排水减少和去除减少了6%左右.
- 通过优化,确定了8个具有成本效益的NbS方案.
- 与替代方案相比,NbS方案改善了排水减少 (0.86-13.9%) 和去除 (0.08-8.45%).
- 低成本的NbS产生的效益与成本比高投资方案的比率更高.
结论:
- 开发的框架有效地优化了NbS配置以适应气候变化.
- 在考虑财务可行性的同时,NbS优化可以实现环境目标.
- 根据社区的收入水平和偏好调整NbS策略对于最大限度地提高收益至关重要.
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