Influence of microtopography on active layer thaw depths in Qilian Mountain, northeastern Tibetan Plateau
文献类型：期刊论文
| 作者 | Gao, Tanguang1,2; Zhang, Tingjun2; Wan, Xudong2; Kang, Shichang1,3; Sillanpaa, Mika4; Zheng, Yanmei5; Cao, Lin2 |
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2016-03-01 |
| 卷号 | 75期号:5页码:12 |
| 关键词 | Active layer thickness Mountain permafrost Microtopography Tibetan plateau |
| ISSN号 | 1866-6280 |
| DOI | 10.1007/s12665-015-5196-7 |
| 通讯作者 | Gao, Tanguang(gaotanguang@163.com) |
| 英文摘要 | Climate warming over the Tibetan Plateau has been thickening the active layer, the most significant indicator of the permafrost system. This study evaluates the influence of microtopography on active layer thaw depth in recent years at Eboling basin of the eastern Qilian Mountain, northeastern Tibetan Plateau. Thaw depths were measured at microtopographic levels in 2012, 2013, and 2014, respectively. Watershed-scale sampling was used to estimate the influence of various morphologies on the active layer, while a second sampling scheme to examine the variations in the frost table height along six short transects. A third sampling scheme used spatial auto-correlation analysis in a regular grid at 10 x 10 m intervals. The results documented that microtopography (elevation, microrelief, surface configuration, and slope) played a pivotal role on the active layer thickness of mountainous permafrost in the study area. Active layer became thinner in depressions, which was contrary to most of Arctic sites. Spatial autocorrelation analysis elucidated that the dominant topographic factors controlled the changes of active layer thickness. These factors exerted the majority of control over the spatial variations of the active layer. The results can help researchers or engineers to roughly estimate the probable influence of micromorphology on the changes in thickness of the active layer in mountainous permafrost regions in the Tibetan Plateau. |
| 收录类别 | SCI |
| WOS关键词 | HEIHE RIVER-BASIN ; NORTHWEST-TERRITORIES ; PERMAFROST REGIONS ; THICKNESS ; ALASKA ; CANADA ; CHINA ; VARIABILITY ; CLIMATE ; INDEXES |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000372171700022 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557376 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Gao, Tanguang |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, Coll Earth Environm Sci, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 4.Lappeenranta Univ Technol, Lab Green Chem, Sammonkatu 12, Mikkeli 50130, Finland 5.Henan Polytech Univ, Coll Comp Sci & Technol, Jiaozuo 454000, Henan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Tanguang,Zhang, Tingjun,Wan, Xudong,et al. Influence of microtopography on active layer thaw depths in Qilian Mountain, northeastern Tibetan Plateau[J]. ENVIRONMENTAL EARTH SCIENCES,2016,75(5):12. |
| APA | Gao, Tanguang.,Zhang, Tingjun.,Wan, Xudong.,Kang, Shichang.,Sillanpaa, Mika.,...&Cao, Lin.(2016).Influence of microtopography on active layer thaw depths in Qilian Mountain, northeastern Tibetan Plateau.ENVIRONMENTAL EARTH SCIENCES,75(5),12. |
| MLA | Gao, Tanguang,et al."Influence of microtopography on active layer thaw depths in Qilian Mountain, northeastern Tibetan Plateau".ENVIRONMENTAL EARTH SCIENCES 75.5(2016):12. |
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来源：寒区旱区环境与工程研究所
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