黑龙江省土壤冻融期气象要素变化特征

王萍,赵慧颖,闫平,朱海霞,翟墨,李秀芬

Characteristics of changes of meteorological factors during freezing and thawing period in Heilongjiang Province

Ping WANG,Huiying ZHAO,Ping YAN,Haixia ZHU,Mo ZHAI,Xiufen LI

图7 黑龙江省春季冻融次数变化

Fig.7 Changes of freeze-thaw times in spring in Heilongjiang Province