Thermal effect of thermokarst lake on the permafrost under embankment

doi:10.1016/j.accre.2020.10.002

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	Thermal effect of thermokarst lake on the permafrost under embankment
	Peng Er-Xing 1; Sheng Yu 1; Hu Xiao-Ying 2; Wu Ji-Chun 1; Cao Wei 1
刊名	ADVANCES IN CLIMATE CHANGE RESEARCH
	2021
卷号	12 期号:1 页码:76-82
关键词	Thermokarst lake Permafrost Ground temperature Heat budget
ISSN号	1674-9278
DOI	10.1016/j.accre.2020.10.002
英文摘要	In permafrost regions of the Qinghai-Tibet Plateau, road disaster caused by permafrost degradation cannot be ignored. As a common thermal disaster in permafrost regions, thermokarst lake has serious thermal erosion on permafrost and results in permafrost degradation aggravating. This study focused on two subgrade cross-sections of Gonghe-Yushu Highway in the Qinghai-Tibet Plateau to analyze thermal effect of thermokarst lake on the permafrost under embankment. The analysis infers that thermokarst lake can transfer heat to permafrost under the embankment, as a heat resource, and the heat flux decreases with the distance away from thermokarst lake in horizontal and vertical direction. Thermokarst lake can cause average ground temperature of permafrost under the embankment increasing, and with less distance from the thermokarst lake the temperature increases more severely. Thermokarst lake results in 14 m thickness melting interlayer in soil under lake and change shape of melting area.
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000629700700007
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/147467]
专题	兰州理工大学
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China; 2.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Peng Er-Xing,Sheng Yu,Hu Xiao-Ying,et al. Thermal effect of thermokarst lake on the permafrost under embankment[J]. ADVANCES IN CLIMATE CHANGE RESEARCH,2021,12(1):76-82.
APA	Peng Er-Xing,Sheng Yu,Hu Xiao-Ying,Wu Ji-Chun,&Cao Wei.(2021).Thermal effect of thermokarst lake on the permafrost under embankment.ADVANCES IN CLIMATE CHANGE RESEARCH,12(1),76-82.
MLA	Peng Er-Xing,et al."Thermal effect of thermokarst lake on the permafrost under embankment".ADVANCES IN CLIMATE CHANGE RESEARCH 12.1(2021):76-82.