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DOI	10.1088/1748-9326/ac6c9a
	How does soil water content influence permafrost evolution on the Qinghai-Tibet Plateau under climate warming?
	Ji, Fang; Fan, Linfeng; Kuang, Xingxing; Li, Xin; Cao, Bin; Cheng, Guodong; Yao, Yingying; Zheng, Chunmiao
通讯作者	Fan, LF ; Zheng, CM (通讯作者)
发表日期	2022
ISSN	1748-9326
卷号	17 期号:6
英文摘要	The active layer thickness (ALT) in permafrost regions regulates hydrological cycles, water sustainability, and ecosystem functions in the cryosphere and is extremely sensitive to climate change. Previous studies often focused on the impacts of rising temperature on the ALT, while the roles of soil water content and soil granularity have rarely been investigated. Here, we incorporate alterations of soil water contents in soil thermal properties across various soil granularities and assess spatiotemporal ALT dynamics on the Qinghai-Tibet Plateau (QTP). The regional average ALT on the QTP is projected to be nearly 4 m by 2100. Our results indicate that soil wetting decelerates the active layer thickening in response to warming, while latent heat exerts stronger control on ALTs than thermal conductivity does. Under similar warming conditions, active layers thicken faster in coarse soils than in fine soils. An important ramification of this study is that neglecting soil wetting may cause overestimations of active layer thickening on the QTP.
关键词	ACTIVE-LAYER THICKNESS MODEL THAW DEGRADATION RAILWAY SUMMER CMIP6 AREA
英文关键词	permafrost; active layer thickness; soil water content; Qinghai-Tibet Plateau; climate change
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000797664100001
来源期刊	ENVIRONMENTAL RESEARCH LETTERS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260733
推荐引用方式 GB/T 7714	Ji, Fang,Fan, Linfeng,Kuang, Xingxing,et al. How does soil water content influence permafrost evolution on the Qinghai-Tibet Plateau under climate warming?[J]. 中国科学院青藏高原研究所,2022,17(6).
APA	Ji, Fang.,Fan, Linfeng.,Kuang, Xingxing.,Li, Xin.,Cao, Bin.,...&Zheng, Chunmiao.(2022).How does soil water content influence permafrost evolution on the Qinghai-Tibet Plateau under climate warming?.ENVIRONMENTAL RESEARCH LETTERS,17(6).
MLA	Ji, Fang,et al."How does soil water content influence permafrost evolution on the Qinghai-Tibet Plateau under climate warming?".ENVIRONMENTAL RESEARCH LETTERS 17.6(2022).