Chinese Journal of Agrometeorology ›› 2015, Vol. 36 ›› Issue (02): 227-233.doi: 10.3969/j.issn.1000-6362.2015.02.014

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Risk Assessment and Distribution of Winter Drought for Melon and Vegetables in Hainan Island

BAI Rui,HUO Zhiguo,JIANG Huifei,YANG Jianying   

  1. 1Chinese Academy of Meteorological Sciences,Beijing100081,China; 2College of Resources and Environmental Science,China Agricultural University,Beijing100193
  • Received:2014-08-29 Online:2015-04-20 Published:2015-06-25

Abstract: Based on daily meteorological data from 18 meteorological stations,crop sown area and yield data in Hainan Island from 1998 to 2011,the winter drought risk,yield loss risk for melon and vegetables and their drought resistant capacity were calculated by using natural disaster risk analysis principle and method. The comprehensive drought risk index was established based on three indices,including drought risk index,yield loss index and drought resistant capacity index for watermelon,cowpea,paprika and luffa. The risk distribution of winter drought was conducted in Hainan Island. The results showed that the comprehensive drought risk index of above four kinds of melon and vegetables increased from the northeast to the southwest in Hainan Island,with peak value located in mainly Dongfang,Changjiang and Ledong counties. The result could provide reference to manage winter drought risk for melon and vegetables in Hainan Island.

Key words: Hainan Island, Winter melon and vegetables, Drought, Climate risk, Comprehensive risk