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
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 |
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Variation Characteristics of the Date of First Frost and Last Frost and the Frost-Free Period in North China in Recent 58 Years |
| Wenhui JIAO,Bo ZHANG,Bin MA,Yanqiang CUI,Liting XING,Xiaodan WANG,Hao HUANG |
| 图5 1961 -2018年华北地区初、 终霜日和无霜期M-K突变检验（上）和累积距平（下）值 |
| Fig.5 M-K mutation test (up) and cumulative anomaly (down) of the first frost date, the last frost date, frost-free period in the Northern China from 1961 to 2018 |
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