气候变化领域集成服务门户(CCPortal): No protection of permafrost due to desertification on the Qinghai-Tibet Plateau

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DOI	10.1038/s41598-017-01787-0
	No protection of permafrost due to desertification on the Qinghai-Tibet Plateau
	Wu, Qingbai; Yu, Wenbing; Jin, Huijun
发表日期	2017
ISSN	2045-2322
卷号	7
英文摘要	Desertification of tundra regions may form an escalating cycle with permafrost degradation where more permafrost thaw leads to continued desertification. This traditional viewpoint has been challenged in recent reports that state desertification protects the underlying permafrost. However, our measurements of soil temperature from nine sites in the Honglianghe River Basin, interior Qinghai-Tibet Plateau, show that desertification can degrade permafrost. If one compares the permafrost temperatures at sites with thin sand covers (e.g. site Yu-7, permafrost temperature of -0.64 degrees C; site Yu-6, permafrost temperature of -1.15 degrees C) with that of site Xie-1 (-0.65 degrees C, with a 120-cm-thick sand cover), the permafrost temperature is not significantly different. It is clear that a thick sand cover does not influence the underlying permafrost temperature. Our observations support traditional geocryological knowledge which states that, under most circumstances, desertification does not protect, but rather degrades, permafrost.
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS关键词	INTERNATIONAL POLAR YEAR ; NORTHERN-HEMISPHERE ; CLIMATE-CHANGE ; THERMAL STATE ; ACTIVE-LAYER ; CHINA ; DEGRADATION ; RESPONSES ; ECOSYSTEM ; IMPACTS
WOS记录号	WOS:000400873800025
来源期刊	SCIENTIFIC REPORTS
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/240196
作者单位	[Wu, Qingbai; Yu, Wenbing; Jin, Huijun] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resource, State Key Lab Frozen Soils Engn, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wu, Qingbai,Yu, Wenbing,Jin, Huijun. No protection of permafrost due to desertification on the Qinghai-Tibet Plateau[J]. 中国科学院西北生态环境资源研究院,2017,7.
APA	Wu, Qingbai,Yu, Wenbing,&Jin, Huijun.(2017).No protection of permafrost due to desertification on the Qinghai-Tibet Plateau.SCIENTIFIC REPORTS,7.
MLA	Wu, Qingbai,et al."No protection of permafrost due to desertification on the Qinghai-Tibet Plateau".SCIENTIFIC REPORTS 7(2017).