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Risk Assessment of Drought in the Yangtze River Delta Based on Natural Disaster Risk Theory

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  • Gaofeng Fan
  • Yong Zhang
  • Yue He
  • Kuo Wang

Abstract

The risk of drought in the Yangtze River Delta Region (YRDR) was assessed using the method of natural disaster risk assessment. Based on the index of disaster risk, the assessment results of risk elements such as drought hazard and vulnerability were calculated in the YRDR. The division of relative drought risk levels in the YRDR was produced at the scale of county (city, district) and township. The results indicated that the areas of highest hazard of drought are located in the northern area of the YRDR. Areas with the greatest vulnerability of drought included Shanghai, Jiaxing, Wuxi, and Hangzhou. The highest risks of drought were mainly distributed in the north of the YRDR; the proportion of slightly high and extremely high risk areas in Shanghai, Nantong, Zhenjiang, Yangzhou, and Taizhou (Jiangsu province) is over 95%. The lowest-risk areas included the southeast coastal area of the YRDR, especially in Hangzhou, and Taizhou (Zhejiang province), where the proportion of slightly high and extremely high risk areas is below 5%. Based on this drought risk assessment, it is critical to establish a drought assessment system including both guarding against and addressing drought.

Suggested Citation

  • Gaofeng Fan & Yong Zhang & Yue He & Kuo Wang, 2017. "Risk Assessment of Drought in the Yangtze River Delta Based on Natural Disaster Risk Theory," Discrete Dynamics in Nature and Society, Hindawi, vol. 2017, pages 1-7, May.
    • Handle: RePEc:hin:jnddns:5682180
    DOI: 10.1155/2017/5682180
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