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DOI	10.3724/SP.J.1226.2021.20024
	Ground temperature variation and its response to climate change on the northern Tibetan Plateau
	Wan, GuoNing; Yang, MeiXue; Wang, XueJia
通讯作者	Yang, MX (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, 320 Donggang West Rd, Lanzhou 730000, Gansu, Peoples R China.
发表日期	2021
ISSN	1674-3822
起始页码	299
结束页码	313
卷号	13 期号:4
英文摘要	Ground temperature plays a significant role in the interaction between the land surface and atmosphere on the Tibetan Plateau (TP). Under the background of temperature warming, the TP has witnessed an accelerated warming trend in frozen ground temperature, an increasing active layer thickness, and the melting of underground ice. Based on high-resolution ground temperature data observed from 1997 to 2012 on the northern TP, the trend of ground temperature at each observation site and its response to climate change were analyzed. The results showed that while the ground temperature at different soil depths showed a strong warming trend over the observation period, the warming in winter is more significant than that in summer. The warming rate of daily minimum ground temperature was greater than that of daily maximum ground temperature at the TTH and MS3608 sites. During the study period, thawing occurred earlier, whereas freezing happened later, resulting in shortened freezing season and a thinner frozen layer at the BJ site. And a zero-curtain effect develops when the soil begins to thaw or freeze in spring and autumn. From 1997 to 2012, the average summer air temperature and precipitation in summer and winter from six meteorological stations along the Qinghai-Tibet highway also demonstrated an increasing trend, with a more significant temperature increase in winter than in summer. The ground temperature showed an obvious response to air temperature warming, but the trend varied significantly with soil depths due to soil heterogeneity.
关键词	SOIL-MOISTURE THERMAL STATE ACTIVE-LAYER PERMAFROST DISTRIBUTION FREEZING PROCESSES DESERTIFICATION SIMULATIONS HEMISPHERE SCIENCE SURFACE
英文关键词	ground temperature; soil freezing-thawing processes; the Tibetan Plateau; climate change
语种	英语
WOS研究方向	Physical Geography
WOS类目	Geography, Physical
WOS记录号	WOS:000686566700003
来源期刊	SCIENCES IN COLD AND ARID REGIONS
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/253664
作者单位	[Wan, GuoNing; Yang, MeiXue; Wang, XueJia] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Yulong Snow Mt Natl Field Observat & Res Stn Cryo, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Wan, GuoNing,Yang, MeiXue,Wang, XueJia. Ground temperature variation and its response to climate change on the northern Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2021,13(4).
APA	Wan, GuoNing,Yang, MeiXue,&Wang, XueJia.(2021).Ground temperature variation and its response to climate change on the northern Tibetan Plateau.SCIENCES IN COLD AND ARID REGIONS,13(4).
MLA	Wan, GuoNing,et al."Ground temperature variation and its response to climate change on the northern Tibetan Plateau".SCIENCES IN COLD AND ARID REGIONS 13.4(2021).