Some characteristics of permafrost and its distribution in the Gaize area on the Qinghai-Tibet Plateau, China
文献类型：期刊论文
| 作者 | Chen, Ji1,2,3; Zhao, Lin1,4; Sheng, Yu1,2; Li, Jing1,2; Wu, Xiao-dong1,4; Du, Er-ji1,4; Liu, Guang-yue1,4; Pang, Qiang-qiang1,4 |
| 刊名 | ARCTIC ANTARCTIC AND ALPINE RESEARCH
 |
| 出版日期 | 2016-05-01 |
| 卷号 | 48期号:2页码:395-409 |
| ISSN号 | 1523-0430 |
| DOI | 10.1657/AAAR0014-023 |
| 通讯作者 | Chen, Ji(chenji@lzb.ac.cn) |
| 英文摘要 | An investigation of permafrost in the Gaize area in the west Qinghai-Tibet Plateau in China was conducted in October and November of 2010 and 2011. It was found that mean annual ground temperature was >-1 degrees C with a permafrost thickness of <60 m in the widespread alpine steppe below an altitude of 5400 m a.s.l. The active layer thickness was usually deeper than 3 m with a maximum of about 5.7 m. Overall, the ice/water content of the top 15 m of frozen soil was usually <10%. The altitudinal limit of permafrost in the alpine steppe was about 5100, 5000, and 4950 m a.s.l. on south-, eastwest-, and north-facing slopes, respectively. A permafrost map was constructed using the ARCGIS platform and topographic information from the TOPO 30 digital elevation model. Statistical analysis of the map revealed that permafrost is primarily distributed in the hilly/mountainous areas of Gaize, covering 51% of the study area. The area of permafrost in this map is considerably less than in the Permafrost Map of the Qinghai Tibet Plateau drawn in 1996. Further analysis revealed that the large difference between the two maps could be attributed to both errors in the earlier mapping method and permafrost degradation. |
| 收录类别 | SCI |
| WOS关键词 | ACTIVE-LAYER THICKNESS ; THERMAL STATE ; DEGRADATION ; ALASKA |
| WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography |
| WOS类目 | Environmental Sciences ; Geography, Physical |
| 语种 | 英语 |
| WOS记录号 | WOS:000376226700012 |
| 出版者 | INST ARCTIC ALPINE RES |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557344 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Chen, Ji |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China 3.Beiluhe Observat & Res Stn Frozen Soil Engn & Env, Lanzhou 730000, Peoples R China 4.Chinese Acad Sci, Cryosphere Res Stn Qinghai Tibetan Plateau, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Ji,Zhao, Lin,Sheng, Yu,et al. Some characteristics of permafrost and its distribution in the Gaize area on the Qinghai-Tibet Plateau, China[J]. ARCTIC ANTARCTIC AND ALPINE RESEARCH,2016,48(2):395-409. |
| APA | Chen, Ji.,Zhao, Lin.,Sheng, Yu.,Li, Jing.,Wu, Xiao-dong.,...&Pang, Qiang-qiang.(2016).Some characteristics of permafrost and its distribution in the Gaize area on the Qinghai-Tibet Plateau, China.ARCTIC ANTARCTIC AND ALPINE RESEARCH,48(2),395-409. |
| MLA | Chen, Ji,et al."Some characteristics of permafrost and its distribution in the Gaize area on the Qinghai-Tibet Plateau, China".ARCTIC ANTARCTIC AND ALPINE RESEARCH 48.2(2016):395-409. |
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来源：寒区旱区环境与工程研究所
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