Degradation of permafrost in the Xing'anling Mountains, northeastern China
文献类型：期刊论文
| 作者 | Jin, Huijun; Yu, Qihao; Lii, Lanzhi; Guo, Dongxin; He, Ruixia; Yu, Shaopeng; Sun, Guangyou; Li, Yingwu |
| 刊名 | PERMAFROST AND PERIGLACIAL PROCESSES
 |
| 出版日期 | 2007-07-01 |
| 卷号 | 18期号:3页码:245-258 |
| 关键词 | Xing'anling Mountains southern limit of permafrost permafrost degradation climatic warming deforestation |
| ISSN号 | 1045-6740 |
| DOI | 10.1002/ppp.589 |
| 通讯作者 | Jin, Huijun(hjjin@lzb.ac.cn) |
| 英文摘要 | Permafrost in the Da and Xiao Xing'anling Mountains in northeastern China is warm, thin and sensitive to climatic warming. In the 1970s, the southern limit of permafrost (SLP) was empirically correlated to the - 1 to 0 degrees C isotherms of mean annual air temperature (MAAT) in the western part of the Da Xing'anling Mountains, to about 0 degrees C in the northern part of the Songnen Plain, and to 0 to + 1 degrees C in the eastern part of the Xiao Xing'anling Mountains. Climate warming and deforestation have led to permafrost degradation as shown by deepening of the active layer, thinning permafrost, rising ground temperatures, expanding taliks and the disappearance of permafrost patches. The present position of the SLP was estimated using the - 1.0 to + 1.0 degrees C MAAT isotherms for 1991-2000. Compared to the SLP in the 1970s, areas of sporadic discontinuous and isolated patchy permafrost have decreased by 90,000-100,000km(2), or 35-37% of their total areal extent (260,000-270,000km(2)) in the 1970s. Recent field observations along the Hei'he to Bei'an Highway, the proposed Mo'he to Daqing Crude Oil Pipeline route and the Hai'lar to Daqing Highway confirm these changes. Continuing northward shifting of the SLP is likely to occur during the next 40-50 years under a warming of 1.0-1.5 degrees C, reducing the permafrost areal extent to an estimated 35% of that in the 1970s and 1980s. Copyright (c) 2007 John Wiley & Sons, Ltd. |
| 收录类别 | SCI |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000249601300003 |
| 出版者 | JOHN WILEY & SONS LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555973 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Jin, Huijun |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soils Engn, Lanzhou 730000, Peoples R China 2.Harbin Coll, Dept Geog, Harbin, Peoples R China 3.Chinese Acad Sci, NE Inst Geog & Agroecol, Changchun, Peoples R China 4.Capital Normal Univ, Inst Resources & Environm, Beijing, Peoples R China 5.Railway Permafrost Observ Yitulihe, Inner Mongolia Autonomous Reg, Yitulihe, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin, Huijun,Yu, Qihao,Lii, Lanzhi,et al. Degradation of permafrost in the Xing'anling Mountains, northeastern China[J]. PERMAFROST AND PERIGLACIAL PROCESSES,2007,18(3):245-258. |
| APA | Jin, Huijun.,Yu, Qihao.,Lii, Lanzhi.,Guo, Dongxin.,He, Ruixia.,...&Li, Yingwu.(2007).Degradation of permafrost in the Xing'anling Mountains, northeastern China.PERMAFROST AND PERIGLACIAL PROCESSES,18(3),245-258. |
| MLA | Jin, Huijun,et al."Degradation of permafrost in the Xing'anling Mountains, northeastern China".PERMAFROST AND PERIGLACIAL PROCESSES 18.3(2007):245-258. |
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来源：寒区旱区环境与工程研究所
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