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Characteristics of agro-meteorological disasters and their risk in Gansu Province against the background of climate change

Author

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  • Ying Wang

    (China Meteorological Administration
    Lanzhou University)

  • Qiang Zhang

    (China Meteorological Administration)

  • Su-Ping Wang

    (China Meteorological Administration)

  • Jin-Song Wang

    (China Meteorological Administration)

  • Yu-bi Yao

    (China Meteorological Administration)

Abstract

Gansu Province is a high-incidence area for many meteorological disasters. In this research, using affected and covered risk indices for the main agro-meteorological disasters (drought, flood, wind hail, and frost), the variability characteristics of agro-meteorological disasters were analyzed and the risks calculated based on the information diffusion method against the background of climate change in Gansu Province. The results showed that of affected (crop yield reduced by >10%) and covered (crop yield reduced by >30%) areas for drought and frost tended to increase between 1978 and 2014, whereas those for flood and wind hail tended to decrease. The affected and covered risk indices for drought increased, those for flood and wind hail showed a slight decreasing trend, the frost affected risk index decreased, and the frost covered risk index increased. Comparing the four kinds of risk for agro-meteorological disasters, the estimated risk decreased as the affected and covered risk indices increased. The risk of drought was more serious than those for other agro-meteorological disasters for the same affected risk index, followed by frost, flood, and wind hail. The most serious disaster agro-meteorological covered risk was wind hail, followed by drought, flood, and frost. After a rapid change in temperature in 1994, the estimated affected risk values of drought and frost increased on average by 17.56 and 96.83%, respectively, whereas the estimated risks of flood and wind hail decreased on average by 15.59 and 5.90%, respectively. After the temperature jump, the estimated covered risk of drought increased on average by 19.57%, whereas those of flood, wind hail, and frost decreased on average by 3.02, 1.78, and 26.10%, respectively. These new scientific discoveries are significant for agro-meteorological disaster prevention in Gansu Province.

Suggested Citation

  • Ying Wang & Qiang Zhang & Su-Ping Wang & Jin-Song Wang & Yu-bi Yao, 2017. "Characteristics of agro-meteorological disasters and their risk in Gansu Province against the background of climate change," 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. 89(2), pages 899-921, November.
    • Handle: RePEc:spr:nathaz:v:89:y:2017:i:2:d:10.1007_s11069-017-2999-8
    DOI: 10.1007/s11069-017-2999-8
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    References listed on IDEAS

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    1. Hui Ju & Marijn Velde & Erda Lin & Wei Xiong & Yingchun Li, 2013. "The impacts of climate change on agricultural production systems in China," Climatic Change, Springer, vol. 120(1), pages 313-324, September.
    2. Nam, Won-Ho & Hayes, Michael J. & Svoboda, Mark D. & Tadesse, Tsegaye & Wilhite, Donald A., 2015. "Drought hazard assessment in the context of climate change for South Korea," Agricultural Water Management, Elsevier, vol. 160(C), pages 106-117.
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    Cited by:

    1. Ximeng Xu & Qiuhong Tang, 2021. "Meteorological disaster frequency at prefecture-level city scale and induced losses in mainland China during 2011–2019," 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. 109(1), pages 827-844, October.

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