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| DOI：10.13522/j.cnki.ggps.2025273 |
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| Social vulnerability to flood disasters in the nine provinces of theYellow River Basin |
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NIU Wenxuan, DONG Jiayi, XU Panpan
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1. School of Water and Environment, Chang’an University, Xi’an 710054, China; 2. Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of the Ministry of Education, Xi’an 710054, China; 3. Key Laboratory of Eco-hydrology and
Water Security in Arid and Semi-arid Regions of Ministry of Water Resources, Chang’an University, Xi’an 710054, China;
4. Key Laboratory of Ecological Geology and Disaster Prevention, Ministry of Natural Resources, Xi’an 710054, China
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| Abstract: |
| 【Objective】The Yellow River Basin is prone to urban flood disasters. Social vulnerability assessment is thus crucial for optimizing disaster prevention and mitigation strategies and promoting harmonious coexistence of ‘people, city, and water’. This study explores the spatiotemporal characteristics and driving factors of urban flood social vulnerability of the nine province in the Yellow River Basin, in attempts to provide a guideline for regional flood disaster governance.【Method】Taking capitals of the nine provincial in the basin as examples, a social vulnerability assessment system for urban floods was constructed based on the vulnerability scoping diagram (VSD) model. It was then used to evaluate the social vulnerability of the nine cities from 2011 to 2022. Cluster analysis was used to identify the key driving factors.【Result】There were significant spatiotemporal disparities in flood social vulnerability among the nine provincial capitals, with an overall increasing trend from the upper reaches to the lower reaches of the basin. Specifically, capitals in the upper reaches are mainly of medium-low vulnerability; in the middle reaches, Taiyuan is of medium-low vulnerability while Xi’an is of medium-high vulnerability; most capitals in the lower reaches are of medium-high vulnerability. The proportion of the primary industries are the dominant driver of social vulnerability. The social vulnerability of the upper-reach capitals was driven mainly by low adaptive capacity, whereas high exposure and high sensitivity dominate the vulnerability of mid- and lower-reach capitals.【Conclusion】The urban flood social vulnerability of the nine provincial capitals in the Yellow River Basin shows significant and spatiotemporal heterogeneity; it requires targeted disaster prevention and mitigation measures that adapt to local conditions. We demonstrated the applicability of the VSD model in social vulnerability assessment of urban floods, providing a methodology for other vulnerability assessment. |
| Key words: flood disaster; social vulnerability; Yellow River Basin; VSD model; provincial capital cities |
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