大兴安岭湿地多年冻土区活动层水热特征分析
冯晓琳,张艳林,常晓丽

Analysis of heat and water transferring characteristics in the active layer of permafrost in the wetland of the Greater Khingan Mountains
Xiaolin FENG,Yanlin ZHANG,Xiaoli CHANG
图3 土壤冻融过程
Fig.3 The freezing-thawing process of soil