绿色基础设施对综合下水道系统在气候变化下的弹性表现的影响
Mayra Rodriguez1, Guangtao Fu2, David Butler2
1Centre for Water Systems, University of Exeter, Exeter, United Kingdom; Department of Urban Water Management, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland.
Journal of environmental management
|February 4, 2024
概括
气候变化将大大增加综合下水道溢流 (CSO) 的数量. 虽然绿色基础设施 (GI) 提高了弹性,但它无法完全抵消未来对这些系统的气候影响.
科学领域:
- 环境工程 环境工程
- 气候科学 气候科学
- 城市水资源管理
背景情况:
- 气候变化改变了降水量,加剧了极端事件并影响了综合下水道系统 (CSS).
- 综合下水道溢出 (CSO) 是一个主要问题,由不断变化的气候模式加剧.
- 绿色基础设施 (GI) 在未来气候情景下增强CSS弹性方面的有效性尚未得到充分量化.
研究的目的:
- 量化气候变化对CSS弹性的影响,特别关注CSO排放.
- 在预测未来降雨情景下评估各种地理标志干预措施的有效性.
- 评估不同地理标志战略在减轻气候变化对城市水系统影响方面的适应能力.
主要方法:
- 使用修改后的全球弹性分析 (GRA) 框架进行连续模拟.
- 在三个代表性度路径 (RCP) 中,为未来的降雨情景 (2085-2099) 采用了EURO-CORDEX区域气候模型.
- 评估了绿色屋顶,通透路面和生物防护电池的性能.
主要成果:
- 在未来降雨情景中观察到性指数的普遍下降.
- 预计CSO年度排放总量将增加145%至256%.
- 绿色基础设施干预措施显示适应能力在7%至22%之间,但无法完全抵消气候变化影响.
结论:
- 绿色基础设施提高了城市水系统的弹性,但不足以抵消预计气候变化对民间组织排放的影响.
- 将绿色屋顶定向到通透区域的绿色屋顶在评估的GI干预措施中表现出最高的适应能力.
- 这项研究为利用地理标志作为提高城市抵御气候变化引起的水文变化的战略工具提供了关键的见解.
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