胡文翰,张质明,赵鑫,齐小天,王懿雯

• 1:北京建筑大学环境与能源工程学院
• 2:北京建筑大学北京应对气候变化研究和人才培养基地

摘要(Abstract)：

近年来，城市内涝灾害频发，脆弱性研究作为城市内涝灾害评估的热点逐渐被重视。合理评估城市内涝脆弱性，探究其背后的驱动机制是城市采取抗灾减灾手段的前提。以北京市为例，基于VSD(Vulnerability Scoping Diagram)模型框架，从水文气象、地形地貌、社会经济三方面选取指标构建城市内涝脆弱性评估体系。通过GIS采用熵值法对内涝脆弱性进行评估，运用地理探测器分析了内涝脆弱性的空间格局及驱动因子的贡献程度。结果表明：(1)北京市城市内涝脆弱性呈环层结构分布，由北京市中心区域往外，脆弱性逐渐变小；(2)脆弱性最高的区域(五级)主要位于东城、西城、朝阳和丰台等区；(3)历史内涝点主要分布在位于四级、五级为主的内涝脆弱地区；(4)城市内涝脆弱性的空间格局是多因素协同作用造成的，其中建筑密度、人口密度、路网密度、NDVI对脆弱性的空间分异性具有主导作用。

关键词(KeyWords)： 脆弱性;内涝;地理探测器;指标体系;空间分异;GIS;降水;城市防洪减灾

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划资助(2021YFC3001400)

作者(Author): 胡文翰,张质明,赵鑫,齐小天,王懿雯

DOI: 10.13928/j.cnki.wrahe.2022.10.006

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