
近58年华北地区初、 终霜日及无霜期变化特征分析
焦文慧;张勃;马彬;崔艳强;邢立亭;王晓丹;黄浩
近58年华北地区初、 终霜日及无霜期变化特征分析
Variation Characteristics of the Date of First Frost and Last Frost and the Frost-Free Period in North China in Recent 58 Years
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