外强迫因子对宁夏初霜冻日期的影响及其预测

黄莹, 杨建玲, 孙银川, 王璠, 王素艳, 王岱

Influence of external forcing factors on first frost date and its predition in Ningxia

HUANG Ying, YANG Jianling, SUN Yinchuan, WANG Fan, WANG Suyan, WANG Dai

图7 1981—2019年各因子特征量与宁夏初霜冻日期的21 a滑动相关系数

Fig.7 The 21-year sliding correlation coefficients between the various factors and first frost date in Ningxia during 1981-2019