气候变化领域集成服务门户(CCPortal): Cryostructures and ground ice content in ice-rich permafrost area of the Qinghai-Tibet Plateau with Computed Tomography Scanning

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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-CHANGE THERMOKARST LAKE DEGRADATION VEGETATION RECORD
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
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).