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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (9): 143-152.doi: 10.11924/j.issn.1000-6850.casb2022-0322

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Spatial and Temporal Characteristics of Wind Disaster Risk of Facility Agriculture in Hubei Province

YANG Qingqing1,2(), LIU Kequn3(), LIU Kaiwen2, SUN Chen3, XIAO Weiyu3   

  1. 1 Agricultural College, Yangtze University, Jingzhou, Hubei 434025
    2 Jingzhou Agro-meteorology Experimental Station, Jingzhou, Hubei 434020
    3 Wuhan Regional Climate Center, Wuhan 430074
  • Received:2022-04-26 Revised:2022-06-10 Online:2023-03-25 Published:2023-03-23

Abstract:

To calculate the probability of disasters caused by different hazard winds to facility agriculture in Hubei Province, and analyze the change characteristics of disaster-causing winds, based on the meteorological datasets of each city in Hubei from 1991 to 2020, this study defined the indexes of mild, moderate, severe, and extra-heavy grade of wind disasters by double-condition constraints. The results showed that the greater the wind speed, the larger the disaster probability of facility agriculture was. The days of hazard winds were evenly distributed over the four seasons, and the days in spring and summer were greater than that in autumn and winter. The Ensemble Empirical Mode Decomposition (EEMD) analysis results showed that there were quasi-periodic changes of about 2-3 years, 6 years and 15 years in the disaster-causing wind force of facility agriculture in Hubei and the disaster-causing wind force remained stable until 2008. Since then, it showed a significant upward trend, and the number of disaster-causing wind days might increase in the future. The overall wind disaster risk in facility greenhouses was high in the central of the province and low in the east and west. The risk of wind disaster in Xiangyang was the greatest. In summary, the following cities, including Xiaogan, Enshi, Wuhan, Yichang, Huanggang, Shiyan, and Xianning, are at mild to moderate risk of wind disasters, which are suitable for the development of facility agriculture.

Key words: facility agriculture, wind disaster index, EEMD analysis, disaster-causing wind