东北地区冬半年积雪与气温对冻土的影响
周晓宇, 赵春雨, 李娜, 刘鸣彦, 崔妍, 敖雪

Influence of snow and temperature on the depth of frozen soil in winter half year in Northeast China
Xiaoyu ZHOU, Chunyu ZHAO, Na LI, Mingyan LIU, Yan CUI, Xue AO
表2 最大冻土深度与地表平均气温、平均气温、负积温相关关系
Table 2 Correlation of maximum frozen soil depth against average surface temperature, average temperature and negative accumulated temperature
因子回归方程相关系数R
地表平均气温(x1y=-8.4065x1+123.7341-0.707
平均气温(x2y=-10.597x2+112.7918-0.679
负积温(x3y=-0.049x3+57.2339-0.623