干旱区生态环境知识资源中心(Arid): Changes in the permafrost temperatures from 2003 to 2015 in the Qinghai-Tibet Plateau

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DOI	10.1016/j.coldregions.2019.102904
	Changes in the permafrost temperatures from 2003 to 2015 in the Qinghai-Tibet Plateau
	Zhang Zhongqiong 1; Wu Qingbai 1,2; Jiang Guanli 1; Gao Siru 1; Chen Ji 1,2; Liu Yongzhi 1,2
通讯作者	Zhang Zhongqiong ; Wu Qingbai
来源期刊	COLD REGIONS SCIENCE AND TECHNOLOGY
ISSN	0165-232X
EISSN	1872-7441
出版年	2020
卷号	169
英文摘要	Alterations in the permafrost due to a warming climate increases the risk of permafrost thawing, accelerates carbon release, lowers super-permafrost groundwater, strengthens desertification, and destroys infrastructure. The permafrost temperature in six boreholes up to 40 m depth was measured from 2003 to 2015 along the Qinghai-Tibet Railway. Results showed an increase in the permafrost temperature, with an average of 0.14 degrees C decade(-1) at 10 m depth. The deep permafrost showed significant warming with average rates of 0.11 and 0.09 degrees C decade(-1) at 20 m and 30 m depth, respectively. At 40 m depth, the cold permafrost showed significant warming trend, but no evident warming trend was observed in the warm permafrost. With the ground temperature increases, the depth of the zero annual amplitude of the ground temperature of the warm permafrost slightly increased, whereas that of the cold permafrost decreased. Permafrost thickness was < 30 m at the BL1 and TT1 sites and was thinner by 2.1 and 0.8 m from 2003 to 2015. Such changes in the permafrost temperature may have been driven by the long-term increase in the air temperature and precipitation on the Qinghai-Tibet Plateau (QTP). In the high-middle mountain areas of the QTP, the thermal effect of warming climate on the cold permafrost reached a depth of > 40 m. In the high plain and basin of the QTP, the thermal effect of the warming climate on the warm permafrost reached a depth of 30 m.
英文关键词	Qinghai-Tibet Plateau Ground temperature Permafrost degradation Climate change
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000502589500008
WOS关键词	THERMAL STATE ; ACTIVE LAYER ; CLIMATE ; DEGRADATION ; REGIONS ; WATER ; THAW
WOS类目	Engineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
WOS研究方向	Engineering ; Geology
EI主题词	2020-01-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/312246
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China; 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Beiluhe Observat Stn Frozen Soil Environm & Engn, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang Zhongqiong,Wu Qingbai,Jiang Guanli,et al. Changes in the permafrost temperatures from 2003 to 2015 in the Qinghai-Tibet Plateau[J],2020,169.
APA	Zhang Zhongqiong,Wu Qingbai,Jiang Guanli,Gao Siru,Chen Ji,&Liu Yongzhi.(2020).Changes in the permafrost temperatures from 2003 to 2015 in the Qinghai-Tibet Plateau.COLD REGIONS SCIENCE AND TECHNOLOGY,169.
MLA	Zhang Zhongqiong,et al."Changes in the permafrost temperatures from 2003 to 2015 in the Qinghai-Tibet Plateau".COLD REGIONS SCIENCE AND TECHNOLOGY 169(2020).