水科学进展2024，Vol.35Issue(1)：38-47,10.DOI:10.14042/j.cnki.32.1309.2024.01.004
基于精细化空间格局的城市承灾体脆弱性评估
Assessment on the vulnerability of urban hazard bearing body based on refined spatial patterns
摘要
Abstract
This study addressed current deficiencies in spatially refined simulation of economic units across administrative regions in a river basin for assessment of the urban flood hazard.Focusing on the spatial distribution of refined economic indicators,and incorporating multiple data sources,an urban flood risk assessment system was constructed for the quantification of the level of flood risk vulnerabilityin the Shenzhen River basin(China).Analysis based on the proposed system revealed the following.① A single datum was found insufficient for accurate simulation of the GDP density of the basin,and combining multisource data representsa more efficient approach for performing spatial refinement of GDP.② A high degree of consistency was evident in termsof the spatialization of GDP density and secondary and tertiary industries in the Shenzhen River basin,with the highest density of production values reaching 6 172.14 million yuan/km2.③ The level of vulnerability was found to vary oneither side of the Shenzhen River basin.The vulnerability to flooding/waterlogging on the Shenzhen side of the river is substantially higher than that on the Hong Kong side,and the area of high vulnerability comprises approximately 8.8％of the total basin area.The results of this study could help both identify the hazard intensity and degree of damage and improve accuracy in urban flooding/waterlogging risk assessment.关键词
城市洪涝/承灾体/脆弱性/空间/精细化/深圳河Key words
urban flooding/waterlogging/hazard bearing body/vulnerability/spatialization/refinement/Shenzhen River分类
建筑与水利引用本文复制引用
徐宗学,唐清竹,陈浩,杨芳..基于精细化空间格局的城市承灾体脆弱性评估[J].水科学进展,2024,35(1):38-47,10.基金项目
国家自然科学基金资助项目(52079005 （）
52239003)The study is financially supported by the National Natural Science Foundation of China(No.52079005 （）
No.52239003). （）
