Variation and Causes of Sunshine Hour in Datong in Last 45 years
LI Xiao-zhen1,LU Ju1,DU Cui-fang1,JIA Li-fang1,LU Chun-hua2 (1.Datong Meteorological Bureau of Shanxi Province,Datong 037000,China;2.Jiexiu Meteorological Bureau of Shanxi Province,Jiexiu 032000)
Chinese Journal of Agrometeorology . 2009, (S1): 22 -24 .