Abstract
An empirical-based natural disaster risk assessment was carried out in a sub-national region of China, using the town of Shuitou, Pingyang County, Wenzhou, as the small-scale study area. Risk factors identified associated with the Typhoon Morakot rainstorm–flood event included hazard, vulnerability, and disaster loss, with the corresponding indicators being submergence depth (m), loss rate (%), and flood loss values (Yuan). As a frequent rainstorm–flood area, the maximum flood depth in Shuitou is 3.57 m, and the average loss rates for housing property and business assets reach 20 and 30 %, respectively. The average maximum loss ranges around 40,000–100,000 Yuan. The comprehensive disaster risk level depends on the respective strengths of the principal component factors. Extremely high-submersion-risk and very high-submersion-risk areas in Shuitou are found in the northwest, specifically along the GongYuan and Yuanlin roads, covering an area of 0.33 km2, about 17.65 % of study areas. This small-scale natural disaster risk assessment encapsulates the principle of “regional characteristics, case accumulation, long-term record.” The evaluation results can be used as reference for regional temporary migration program design and implementation.
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Acknowledgments
This work was financially supported by the National Natural Science Foundation of China (NSFC) (No. 51174142, No. 51422404, and No. 41101507), National Science Support Panning of China (No. 2009BAB48B02), Program for New Century Excellent Talents in University of Chinese Ministry of Education (No. NCET-11-1036), the Fok Ying Tung Education Foundation (No. 132023), Program for the Top Young Academic Leaders of Higher Learning Institutions of Shanxi (TYAL), Program for the Philosophy and Social Sciences Research of Higher Learning Institutions of Shanxi (PSSR) (No. 2014314), Shanxi Meteorological Bureau Fund Project (No. SXKYBFW20147822), Shanxi Soft Science Fund Project (No. 2013041041-05), the Qualified Personnel Foundation of TaiYuan University of Technology (No. TYUT-RC201110A), Youth Foundation of Taiyuan University of Technology (No. 2013w023 and 2013w024). We gratefully acknowledge the thoughtful comments of the editor and reviewers.
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Liu, Y., Feng, G., Xue, Y. et al. Small-scale natural disaster risk scenario analysis: a case study from the town of Shuitou, Pingyang County, Wenzhou, China. Nat Hazards 75, 2167–2183 (2015). https://doi.org/10.1007/s11069-014-1420-0
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DOI: https://doi.org/10.1007/s11069-014-1420-0