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《Journal of Anhui Normal University(Natural Science)》 2012-01
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Analysis on the Reason of the Continuing Drought in theSouthwest China at Winter and Spring in the Years of 2009-2010

ZHOU Bing-gen,CHEN Jian-ye,HE Jun-jie,ZHANG Jing,ZHANG Lei,LIU Xiang-yang,PAN Jin-bao(College of Territorial Resources & Tourism,Anhui Normal University,Wuhu 241003,China)  
Southwest China is affricated with the continuing drought at winter and spring in 2009-2010.It caused the great difficulty for the drink water for the people,livestock and irrigation.According to the normal atmospheric circulation,southwest China,especially Guizhou Highland has more a long spell of wet weather at winter and spring.But,because of the climate growing warm in the whole world,it changed the original law of the atmospheric circulation of the whole world,and enhanced the strength of the region circulation.It led to a very strong southwest wind(southwest warm airflow) and forced the Kunming halt front and the south China halt front to move to east region.At winter and spring in 2009-2010,Southwest China situated in the single domination of the southwest warm airflow,led to the continuing drought.And the middle and below reaches of Yangtse River and South China have more precipitation.
【CateGory Index】: P426.616
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