Quantitative Multi-Hazard Risk Assessment of Crop Loss in the Yangtze River Delta Region of China

文献类型： 外文期刊

第一作者： Ma, Yunjia

作者： Ma, Yunjia;Zhang, Xinhang;Shi, Peijun;Xu, Wei;Ma, Yunjia;Zhang, Xinhang;Shi, Peijun;Xu, Wei;Ma, Yunjia;Zhang, Xinhang;Shi, Peijun;Xu, Wei;Ma, Yunjia;Zhang, Xinhang;Shi, Peijun;Ming, Xiaodong;Zhuo, Li;Lu, Bingqiang

作者机构：

关键词： multi-hazard; copula; joint return period; vulnerability surface; crop loss risk; Yangtze River Delta region

期刊名称：SUSTAINABILITY （ 影响因子：3.251； 五年影响因子：3.473 ）

ISSN： 2071-1050

年卷期： 2019 年 11 卷 3 期

页码：

收录情况： SCI

摘要： Due to their complexity, hazard interactions are often neglected in current studies of multi-hazard risk assessment. As a result, the assessment results are qualitative or semi-quantitative and are difficult to use in regional risk management. In this paper, the crop loss risk due to heavy rain and strong wind in the Yangtze River Delta (YRD) region of China was quantitatively assessed, based on the joint return periods of these hazards and a vulnerability surface. The joint return period is obtained with a copula function based on the marginal distribution of each hazard. The vulnerability is fitted by considering the joint hazard intensity, the sown area of crops, elevation, and GDP per capita. The results show that counties with a high value of joint hazard probability are clustered in the southeast coastal area and that the value gradually decreases from south to north and from east to west. The multi-hazard risk has a similar pattern, with a large value in the southeast coastal area and a low value in the northwest. The proposed method can be used for quantitative assessment of multi-hazard risk, and the results can be used for regional disaster risk management and planning.

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