• 责任者：Zhang Xiumin (State Key Laboratory of Frozen Soil Engineering ; Cold and Arid Regions Environmental and Engineering Research Institute ; Chinese Academy of Sciences ; Lanzhou 73000 ; China) ; Sheng Yu
• 刊名：Scientia Geographica Sinica
• 出版年：2012
• 卷期：32(12)
• 关键词：多年冻土 ; permafrost ; 青藏高原 ; Qinghai-Tibetan Plateau
• 页码：p.1513-1520
• 索书号：P190.6/208-12
• 图表：4 illus., 1 table, 21 refs.
• 分类号：1400
• issnNo：1000-0690
• isbnNo：22-1124/P

In this paper, sub-region classification method was proposed to deal with the distribution of permafrost because of the impact of complex terrain. The results showed that the area of permafrost was 1 681.4 km², accounting for 66.7% of the whole area. The transitional and sub-stable permafrost were the major types of permafrost, accounting for 50.8% of the whole area; unstable permafrost was accounted for about 11.4% of the total area, yet the percentage of stable and extreme-stable were smaller relatively, the percentage was 4.4% and 0.2%, respectively. A change was that seasonal frozen ground changed into unstable permafrost, then transitional permafrost, then substable permafrost, then stable permafrost, and extremely stable permafrost eventually with the increase of elevation.