山西近50年初霜冻的时空分布及其突变特征
李芬，张建新，闫永刚，贾利冬，王旭东，李秋平
Temporal and Spatial Distribution of First Frost and Its Abrupt Change in Shanxi Province Last 50 Years
LI Fen,ZHANG Jian xin,YAN Yong gang,JIA Li dong,WANG Xu dong,LI Qiu ping
中国农业气象
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2012, (03): 448
-456
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DOI: 10.3969/j.issn.1000-6362.2012.03.020