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	The relationship between the ground surface layer permittivity and active-layer thawing depth in a Qinghai-Tibetan Plateau permafrost area
	Du Erji; Zhao Lin; Wu Tonghua; Li Ren; Yue Guangyang; Wu Xiaodong; Li Wangping; Jiao Yongliang; Hu Guojie; Qiao Yongping
刊名	COLD REGIONS SCIENCE AND TECHNOLOGY
	2016-06-01
卷号	126页码:55-60
关键词	Permittivity Active-layer Permafrost GPR
ISSN号	0165-232X
DOI	10.1016/j.coldregions.2016.03.006
通讯作者	Du Erji(duerji@lzb.ac.cn)
英文摘要	Active-layer thickness's distribution is a key parameter for permafrost area studies. In the past, the factors of vegetation, soil water content usually were employed to forecast the spatial distribution of active-layer thickness. But in coarse material distribution area, the above method is often unsatisfactory due to the failure in accurate acquisition of biomass and soil water content. In this paper, a simple method was recommended to be used for calculating of active layer thickness distribution, which is suitable for all kinds of soil texture. Our study analyzed the relationship between ground surface layer permittivity and the thawing depth of the active layer in a permafrost area that was undisturbed by subsurface water flow or local melting. Ground surface layer permittivity is confirmed as having a strong correlation with soil moisture content and biomass of the vegetation cover. We used the direct ground wave velocities from GPR detecting results to compute the dielectric permittivity. Our conclusion is that in our specific study area, a power function relationship existed between the ground surface layer permittivity and the thawing depth of the active layer. (C) 2016 Elsevier B.V. All rights reserved.
收录类别	SCI
WOS关键词	PENETRATING RADAR ; THERMAL REGIME ; WATER-CONTENT ; VEGETATION ; ANTARCTICA ; THICKNESS ; ALASKA ; SITES ; SOILS ; MODEL
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000374992400008
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2557330
专题	寒区旱区环境与工程研究所
通讯作者	Du Erji
作者单位	Chinese Acad Sci, Cryosphere Res Stn Qinghai Tibet Plateau, CAREERI, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Du Erji,Zhao Lin,Wu Tonghua,et al. The relationship between the ground surface layer permittivity and active-layer thawing depth in a Qinghai-Tibetan Plateau permafrost area[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2016,126:55-60.
APA	Du Erji.,Zhao Lin.,Wu Tonghua.,Li Ren.,Yue Guangyang.,...&Liu Guangyue.(2016).The relationship between the ground surface layer permittivity and active-layer thawing depth in a Qinghai-Tibetan Plateau permafrost area.COLD REGIONS SCIENCE AND TECHNOLOGY,126,55-60.
MLA	Du Erji,et al."The relationship between the ground surface layer permittivity and active-layer thawing depth in a Qinghai-Tibetan Plateau permafrost area".COLD REGIONS SCIENCE AND TECHNOLOGY 126(2016):55-60.

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