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DOI | 10.1007/s11629-020-6197-x |
Cryostructures and ground ice content in ice-rich permafrost area of the Qinghai-Tibet Plateau with Computed Tomography Scanning | |
Fan, Xing-wen; Lin, Zhan-ju; Gao, Ze-yong; Meng, Xiang-lian; Niu, Fu-jun; Luo, Jing; Yin, Guo-an; Zhou, Fu-jun; Lan, Ai-yu | |
通讯作者 | Lin, ZJ (通讯作者),Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China. |
发表日期 | 2021 |
ISSN | 1672-6316 |
EISSN | 1993-0321 |
起始页码 | 1208 |
结束页码 | 1221 |
卷号 | 18期号:5 |
英文摘要 | Permafrost is an important part of the cryosphere, playing an integral role in the hydrologic cycle, ecology, and influencing human activity. Melting of ground ice can drastically change landscapes and associated thaw subsidence may induce instability of infrastructure. The terrain conditions on the Qinghai-Tibet Plateau are complex, and the spatial distribution of ground ice is highly variable, so knowledge of its abundance and variability is required for impact assessments relating to the degradation of permafrost. This study examined 55 permafrost samples from warm, ice-rich permafrost region in Beiluhe Basin, Qinghai-Tibet Plateau. The samples were examined using Computed Tomography scanning, and the ice content and cryostructure were determined. The results indicated that: 1) variation in volumetric ice content was considerable (0%-70%), with a mean value of 17%; 2) seven cryostructures were identified, including crustal, vein, lenticular, ataxitic, reticulate and layered cryostructure; 3) volumetric ice content varied by cryostructure, with the highest associated with layered and ataxitic cryostructures. Volumetric ice contents were lowest for samples with pore and lenticular cryostructures. This work provides detailed ground ice content and will be helpful for assessing thaw subsidence and infrastructure stability on Qinghai-Tibet Plateau. |
关键词 | CLIMATE-CHANGETHERMOKARST LAKEDEGRADATIONVEGETATIONRECORD |
英文关键词 | Qinghai-Tibet Plateau; Permafrost; CT scanning; Volumetric ice content; Cryostructure |
语种 | 英语 |
WOS研究方向 | Environmental Sciences & Ecology |
WOS类目 | Environmental Sciences |
WOS记录号 | WOS:000650209900006 |
来源期刊 | JOURNAL OF MOUNTAIN SCIENCE
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来源机构 | 中国科学院西北生态环境资源研究院 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/253715 |
作者单位 | [Fan, Xing-wen; Lin, Zhan-ju; Gao, Ze-yong; Niu, Fu-jun; Luo, Jing; Yin, Guo-an; Lan, Ai-yu] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China; [Fan, Xing-wen; Lan, Ai-yu] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Meng, Xiang-lian; Zhou, Fu-jun] China Railway First Survey & Design Inst Grp Co L, Xian 71004, Peoples R China |
推荐引用方式 GB/T 7714 | Fan, Xing-wen,Lin, Zhan-ju,Gao, Ze-yong,et al. Cryostructures and ground ice content in ice-rich permafrost area of the Qinghai-Tibet Plateau with Computed Tomography Scanning[J]. 中国科学院西北生态环境资源研究院,2021,18(5). |
APA | Fan, Xing-wen.,Lin, Zhan-ju.,Gao, Ze-yong.,Meng, Xiang-lian.,Niu, Fu-jun.,...&Lan, Ai-yu.(2021).Cryostructures and ground ice content in ice-rich permafrost area of the Qinghai-Tibet Plateau with Computed Tomography Scanning.JOURNAL OF MOUNTAIN SCIENCE,18(5). |
MLA | Fan, Xing-wen,et al."Cryostructures and ground ice content in ice-rich permafrost area of the Qinghai-Tibet Plateau with Computed Tomography Scanning".JOURNAL OF MOUNTAIN SCIENCE 18.5(2021). |
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