Climate Change Research ›› 2016, Vol. 12 ›› Issue (4): 261-267.doi: 10.12006/j.issn.1673-1719.2015.191

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The Progresses of Dry-Wet Climate Divisional Research in China

Zhang Cunjie1, Liao Yaoming1, Duan Juqi1, Song Yanling1, Huang Dapeng1, Wang Sheng2   

  1. 1 National Climate Center, China Meteorological Administration, Beijing 100081, China; 
    2 Climate Center of Anhui Province, Hefei 230031, China
  • Received:2015-11-10 Revised:2016-01-21 Online:2016-07-30 Published:2016-07-30
  • Contact: Cun-Jie ZHANG


The dry-wet climate regionalization index, potential evapotranspiration calculation methods, standard and named method of the dry-wet climate regionalization, etc., are reviewed in this paper since the middle of the 20th century. Using the arid index, climate regionalization and class standard were given on the basis of former review. Then, the characteristics of dry-wet climate division were analyzed using observed data at 2207 national meteorological stations from 1981 to 2010. The results showed that arid area (including the extreme arid, arid and semi-arid areas) was 4.692 million hm2 in China, accounting for 48.8% of the land area in China, which included 0.878 million hm2 (9.1%), 2.092 million hm2 (21.8%) and 1.722 million hm2 (17.9%) for extreme arid, arid and semi-arid area respectively. The arid areas were mainly distributed in Xinjiang, Inner Mongolia, Tibet, Qinghai, Gansu province and other western regions. The sub-humid area, wet area and excessive wet area accounted for 16.2%, 27.8% and 8.8% of China’s land area respectively, mainly located in the south of the Yangtze River and Northeast China.


Key words: dry-wet climate division, arid index, potential evapotranspiration, research progress

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