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1970-2012年山西省负积温变化特征及其影响
张霞,钱锦霞,韩普
Variation of negative accumulated temperature and its effect from 1970 to 2012 in Shanxi Province
中国农学通报 . 2014, (33): 243 -247 .  DOI: 10.11924/j.issn.1000-6850.2014-0706