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评估城市水文风险的社会-生态-技术脆弱性方法
S Khromova1, G Villalba Méndez1,2, M J Eckelman3
1Institute of Environmental Science and Technology (ICTA), Universitat Autònoma de Barcelona (UAB), Bellaterra, Spain.
概括
极端气候事件带来了重大的城市风险,主要来自雨水. 本研究使用社会生态技术系统 (SETS) 框架来识别脆弱社区并指导弹性城市规划.
科学领域:
- 城市规划和气候适应
- 环境科学和水文学
- 评估社会脆弱性的评估.
背景情况:
- 城市人口面临极端气候事件带来的风险越来越大,特别是风暴水的危险.
- 人口增长和气候变化加剧了这些脆弱性.
- 现有的风险评估往往缺乏对相互连接的城市系统的整体观点.
研究的目的:
- 通过社会生态技术系统 (SETS) 框架,开发对城市地区与水有关的风险的新理解.
- 评估城市对气候变化影响的脆弱性,特别是与雨水相关的危险.
- 为识别高风险社区提供一个工具,并为可持续的城市未来制定政策.
主要方法:
- 开发一个以水文信息为基础的城市风险指数,包含17个指标.
- 应用一个空间显式的社会生态技术系统 (SETS) 方法.
- 分析了关于下水道溢出和洪水事件的历史和建模数据.
主要成果:
- 发现社会脆弱性是影响整体城市风险的最关键因素 (R=0.4).
- 生态 (R=0.2) 和技术 (R=0.1) 领域为降低风险提供了关键见解.
- 通过SETS方法,成功地确定了高风险社区和脆弱热点.
结论:
- 社会脆弱性显著放大了城市环境中极端气候事件带来的风险.
- 生态和技术因素为降低风险提供了可行的策略,包括基础设施升级和绿色空间利用.
- 拟议的SETS框架是可概括的,可以作为城市政策制定的基本工具,以增强性.
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