Chinese Journal of Agrometeorology ›› 2019, Vol. 40 ›› Issue (11): 723-732.doi: 10.3969/j.issn.1000-6362.2019.11.006

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Climatic Risk Regionalization of Mango Planting in Fujian Province Based on Cold Injury Process

YANG Kai,CHEN Bin-bin,CHEN Hui,LI Li-chun,CHEN Bin-yuan,LI Zheng   

  1. 1. Fujian Institute of Meteorological Science, Fuzhou 350001, China; 2. Zhangzhou Meteorological Bureau, Zhangzhou 363000; 3. Institute of Guangxi Meteorological Disaster Mitigation, Nanning 530022
  • Online:2019-11-20 Published:2019-11-13

Abstract: Based on the 39 mango cold disaster samples collected through four channels which were disaster investigation of cold injury in winter, orchard positioning observation, geographic displacement experiment and low temperature disaster experiment of artificial climate chamber, the critical temperature of cold injury for mango was determined to be 2.0℃. On this basis, 28 cold injury processes were screened out in winter from 2001 to 2014 in Fujian major mango producing counties and cities. By correlating the meteorological factors such as temperature and precipitation in the process of cold injury with the relative meteorological yield, the disaster-inducing factors for cold injury of mango was determined as extreme minimum temperature of cold injury process, accumulated value of cold injury process for the extreme minimum daily temperature ≤2.0℃, sustained days of cold injury process for the temperature ≤2.0℃, and cooling range of cold injury process for the temperature ≤2.0℃. By using the method of principal component analysis to simplify comprehensively four disaster-inducing factors, the integrated climatic index of cold injury evaluation of mango was obtained, and the index classification was determined by combining the relative meteorological yield. According to the grade of comprehensive climatic index of cold injury, the climatic risk regionalization of mango planting for cold injury was completed by using GIS method in Fujian Province. The region with no or mild cold injury mainly distributes in the coastal areas, which is the region with the lowest risk of cold injury for introducing high-quality mango varieties.

Key words: Mango, Cold injury, Critical temperature, Comprehensive climatic index, Risk regionalization