Annual Change and Abrupt Change of the Seasonal Frozen Soil in Xinjiang,China during 1961-2002
WANG Qiu-xiang, LI Hong-jun, WEI Rong-qing, WANG Xiao-mei
JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY . 2005, (6): 820 -826 .  DOI: 10.7522/j.issn.1000-0240.2005.0122