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Some Characteristics of the Climatic Landform in the Northeast China Since the Last Glacial Epoch

Xiao Ronghuan and Hu Jianbin (Northeast Normal University)  
In the last glacial epoch, many cirques with the height of about 2200m above sea-level developed around the Tianchi Lake of the Changbai Mountains. Vast areas of the Northeast were in the periglacial environment. Up to now, many periglacial forms are still dominant in geomorphologic landscape. During the post-glacial period, glacial geomorphology of the Changbai Mountain was transformed by the periglacial environment, and periglacial geomorphology in vast areas was transformed by the warmer environment. The Ice-snow Line, as a boundary of the climatic landform, moved northward form 44-45° of the last glacial stage to 51° N of the Present situation. Since the last glacial stage, the climatic landscape zones have shown the characteristics of moving parallelly along longitude and latitude
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