根据共享的社会经济路径,针对长期气候变化的协同灰绿基础设施的多阶段优化框架,以应对长期气候变化
Shiqi Zhou1, Haifeng Diao2, Jiahui Wang2
1College of Design and Innovation, Tongji University, Shanghai 200093, China.
Water research
|January 12, 2025
概括
优化协同效应的灰绿基础设施 (SGGI) 有效地管理气候变化下的城市雨水. 与传统的灰色基础设施 (GREI) 相比,这种方法可以降低成本并提高液压可靠性.
科学领域:
- 环境工程 环境工程
- 城市水文学 城市水文学
- 适应气候变化 适应气候变化
背景情况:
- 城市化和气候变化加剧了极端降雨和下水,威胁到城市的水源安全.
- 现有的雨水管理通常侧重于单一事件评估灰色基础设施 (GREI) 或绿色基础设施 (GI) 单独.
- 在了解气候变化对基础设施性能长期影响方面存在严重差距.
研究的目的:
- 为协同灰绿基础设施 (SGGI) 布局引入一个多阶段优化框架.
- 根据各种气候变化场景 (共享社会经济路径) 的生命周期成本 (LCC) 和液压可靠性来评估 SGGI 的性能.
- 为城市雨水管理提供适应性策略,适应气候变化.
主要方法:
- 使用图形理论和遗传算法开发了SGGI的多阶段优化框架.
- 在不同气候变化情景下评估基础设施性能 (SSP2-4.5,SSP5-8.5).
- 在中国深进行了一项案例研究,将SGGI与GREI进行比较,并评估不同的适应策略 (CGG与COG).
主要成果:
- 气候情景显示,深的年降水量存在显著的特定阶段变化.
- 与GREI相比,优化的SGGI实现了相当大的LCC节省 (6.6%集中,4.7%分散).
- 通过从透性路面转向极端降雨的生物防护电池来适应SGGI; CGG策略在LCC和可靠性方面表现优于COG.
结论:
- 多阶段优化对于提高综合灰绿基础设施的成本效益和弹性至关重要.
- 适应性SGGI战略对于应对城市环境中长期气候变化至关重要.
- 该研究为设计强大的城市雨水管理系统提供了宝贵的见解.
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