Permafrost degradation and its environmental effects on the Tibetan Plateau: A review of recent research
文献类型：期刊论文
| 作者 | Yang, Meixue1,2; Nelson, Frederick E.2; Shiklomanov, Nikolay I.3; Guo, Donglin4; Wan, Guoning1 |
| 刊名 | EARTH-SCIENCE REVIEWS
 |
| 出版日期 | 2010-11-01 |
| 卷号 | 103期号:1-2页码:31-44 |
| ISSN号 | 0012-8252 |
| 关键词 | Active layer China Tibetan Plateau Permafrost Climate warming Permafrost degradation |
| DOI | 10.1016/j.earscirev.2010.07.002 |
| 通讯作者 | Yang, Meixue(mxyang@lzb.ac.cn) |
| 英文摘要 | A significant portion of the Tibetan Plateau is underlain by permafrost, and is highly sensitive to climate change. Observational data from recent Chinese investigations on permafrost degradation and its environmental effects in the Tibetan region indicate that a large portion of the Tibetan Plateau has experienced significant warming since the mid-1950s. The air temperature increase is most significant in the central, eastern, and northwestern parts of the Plateau. The warming trend in the cold season was greater than that in the warm season. The duration of seasonal ground freezing has shortened due to the air temperature increase in winter. Numerical simulations indicate that air temperature on the Plateau will continue to increase in the 21st century. Significant warming has resulted in extensive degradation of permafrost Over the last 30 years, a 25 m increase in the lower altitudinal occurrences of permafrost has taken place in the north. In the south the increase is 50-80 m over the past 20 years. Active-layer thickness and mean annual ground temperature have increased by 0.15-0.50 m during 1996-2001 and by 0.1-0.5 degrees C during the last 30 years on the Tibetan Plateau, respectively. Widespread permafrost degradation has already caused environmental deterioration. Extensive desertification processes are apparent in the eastern and western portions of the Tibetan Plateau, with the area occupied by desert increasing annually by about 1.8%. With rapid retreat and thinning of permafrost, large carbon pools sequestered in permafrost could be released to increase net sources of atmospheric carbon, creating a positive feedback and accelerated warming. Damage to human infrastructure is also caused by frost heave, thaw settlement, and thaw slumping in the permafrost-affected region. The impact of permafrost degradation on energy and water exchange processes between the ground and atmosphere require further examination. Large-scale intensive monitoring networks, remote sensing investigations, and models for frozen soil are needed to clarify regional details of climate change, permafrost degradation, and their environmental effects. (c) 2010 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | GROUND-PENETRATING RADAR ; HIGH-ALTITUDE PERMAFROST ; ASIAN SUMMER MONSOON ; EURASIAN SNOW COVER ; CLIMATE-CHANGE ; TEMPERATURE-CHANGE ; AIR-TEMPERATURE ; GREENHOUSE-GAS ; CHINA ; HIGHWAY |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000285074700002 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556440 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Yang, Meixue |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Cryospher Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Univ Delaware, Dept Geog, Newark, DE 19716 USA 3.George Washington Univ, Dept Geog, Washington, DC 20052 USA 4.Chinese Acad Sci, Inst Atmospher Phys, Nansen Zhu Int Res Ctr, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Meixue,Nelson, Frederick E.,Shiklomanov, Nikolay I.,et al. Permafrost degradation and its environmental effects on the Tibetan Plateau: A review of recent research[J]. EARTH-SCIENCE REVIEWS,2010,103(1-2):31-44. |
| APA | Yang, Meixue,Nelson, Frederick E.,Shiklomanov, Nikolay I.,Guo, Donglin,&Wan, Guoning.(2010).Permafrost degradation and its environmental effects on the Tibetan Plateau: A review of recent research.EARTH-SCIENCE REVIEWS,103(1-2),31-44. |
| MLA | Yang, Meixue,et al."Permafrost degradation and its environmental effects on the Tibetan Plateau: A review of recent research".EARTH-SCIENCE REVIEWS 103.1-2(2010):31-44. |
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来源：寒区旱区环境与工程研究所
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