Variation Analysis on Frost and Unusual Events in Datong City in Rencent 50 Years
LIANG Jin-qiu,JIA Li-fang,HE Zheng-mei,GAO Qin-lan,LIANG Li-zhen,XU Xin(Datong Meteorological Bureau,Datong 037010,China)
Chinese Journal of Agrometeorology . 2010, (S1): 124 -128 .