Advances in Earth Science ›› 1997, Vol. 12 ›› Issue (2): 164-167. doi: 10.11867/j.issn.1001-8166.1997.02.0164
Special Issue: 青藏高原研究——青藏科考虚拟专刊；
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WANG Shaoling
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WANG Shaoling. STUDY OF PERMAFROST DEGRADATION IN THE QINGHAI-XIZANG PLATEAU[J]. Advances in Earth Science, 1997, 12(2): 164-167.
The climate in the Qinghai-Xizang plateau has been becoming warmer since the late 1970' s ,that have resulted in a regional permafrost degradation in the plateau.The mean annual ground temperatures rose 0.1～0.5℃,uncoincidently frozen ground and residual thawed layers in the vertical profile have been forming in the fringe,the lower limit of permafrost distribution rose about 40～80 m,and the total area of permafrost has been disminished 10×104km2.