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Assessment of climate change impacts on flooding vulnerability for lowland management in southwestern Taiwan

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  • Hsiao-Wen Wang
  • Pin-Han Kuo
  • Jenq-Tzong Shiau

Abstract

Taiwan suffers from losses of economic property and human lives caused by flooding almost every year. Flooding is an inevitable, reoccurring, and the most damaging disaster in Taiwan since Taiwan is located in the most active tropic cyclone formation region of the Western Pacific. Flooding problem is further worse in land subsidence areas along southwestern coast of Taiwan due to groundwater overdraft. Increasing number of people is threatened with floods owing to climate change since it would induce sea level rise and intensify extreme rainfall. Assessments of flooding vulnerability depend not only on flooding severity, possible damage of assets exposed to floods should also be simultaneously considered. This paper aims at exploring how climate change might impact the flooding vulnerability of lowland areas in Taiwan. A flooding vulnerability evaluation scheme is proposed in this study which incorporates flooding severity (the maximum inundation depth determined by a two-dimensional model) and potential economic losses for various land uses. Effects of climate change on flooding vulnerability focus on alterations of rainfall depth for various recurrence intervals. The flood-prone Yunlin coastal area, located in southwestern Taiwan, is chosen to illustrate the proposed methodology. The results reveal that reducing flooding vulnerability can be achieved by either reducing flooding severity (implementation of flood-mitigation measures) or decreasing assets exposed to floods (suspension of land uses for flood-detention purpose). Performance of currently implemented flood-mitigation measures is insufficient to reduce flooding vulnerability when facing with climate change. However, the scenario suggested in this study to sustain room for floods efficiently reduces flooding vulnerability in both without- and with climate change situations. The suggestions provided in this study could support decision processes and help easing flooding problems of lowland management in Taiwan under climate change. Copyright Springer Science+Business Media Dordrecht 2013

Suggested Citation

  • Hsiao-Wen Wang & Pin-Han Kuo & Jenq-Tzong Shiau, 2013. "Assessment of climate change impacts on flooding vulnerability for lowland management in southwestern Taiwan," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 68(2), pages 1001-1019, September.
    • Handle: RePEc:spr:nathaz:v:68:y:2013:i:2:p:1001-1019
    DOI: 10.1007/s11069-013-0670-6
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    References listed on IDEAS

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    1. Jenq-Tzong Shiau & Ching-Nuo Chen & Chang-Tai Tsai, 2012. "Physiographic Drainage-Inundation Model Based Flooding Vulnerability Assessment," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 26(5), pages 1307-1323, March.
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    7. Richard Tol, 2002. "Estimates of the Damage Costs of Climate Change, Part II. Dynamic Estimates," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 21(2), pages 135-160, February.
    8. Georgia Kandilioti & Christos Makropoulos, 2012. "Preliminary flood risk assessment: the case of Athens," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 61(2), pages 441-468, March.
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    Cited by:

    1. Moslem Imani & Hoda Fakour & Shang-Lien Lo, 2021. "Exploring Climate Disaster Resilience: Insight into City and Zone Levels of Southern Taiwan," Agriculture, MDPI, vol. 11(2), pages 1-19, January.
    2. Ching-Hsien Ho & Huu-Sheng Lur & Ming-Hwi Yao & Fang-Ching Liao & Ying-Ting Lin & Nobuyuki Yagi & Hsueh-Jung Lu, 2018. "The impact on food security and future adaptation under climate variation: a case study of Taiwan’s agriculture and fisheries," Mitigation and Adaptation Strategies for Global Change, Springer, vol. 23(3), pages 311-347, March.
    3. Huu Trung Nguyen, 2018. "Unpacking local impacts of climate change: learning with a coastal community in Central Vietnam," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 93(1), pages 125-146, August.
    4. Mohammad Zahangeer Alam & Md Manjurul Haque & Mimi Talukdar & Md Moniruzzaman & Joan Halsey & Alex R Crump & Md Abdul Qayum & Hasan Mohammad Abdullah Author-Workplace-Name: Department of Agroforestry , 2018. "Effect of Natural Disasters and their Coping Strategies in the Kuakata Coastal Belt of Patuakhali Bangladesh," International Journal of Environmental Sciences & Natural Resources, Juniper Publishers Inc., vol. 14(4), pages 105-119, September.

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