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DOI	10.1021/acs.est.0c04929
	Hf-Nd-Sr Isotopic Composition of the Tibetan Plateau Dust as a Fingerprint for Regional to Hemispherical Transport
	Wei, Ting; Brahney, Janice; Dong, Zhiwen; Kang, Shichang; Zong, Chunlei; Guo, Junming; Yang, Ling; Qin, Xiang
通讯作者	Dong, ZW (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryosphere Sci, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	0013-936X
EISSN	1520-5851
起始页码	10121
结束页码	10132
卷号	55 期号:14
英文摘要	Large areas of arid regions in the Tibetan Plateau (TP) are undergoing desertification and subsequent aeolian emission and transport. The contribution of TP soils to the atmospheric aerosol burden in Asia and elsewhere is not known. Here, we use Hf, Nd, and Sr isotopes to distinguish the TP from other Asian dust-producing regions and compare the signatures to sediments in major dust sink regions. We found that the Hf-Nd-Sr isotopes of TP soils showed unique spatial signatures. From north to south, Sr-87/Sr-86 ratios gradually increased, while epsilon(Nd) and epsilon(Hf) values gradually decreased; from west to east,Sr- 87/(86)(S)r and enf gradually increased, while epsilon(Nd) changed indistinctly. The Hf-Nd-Sr isotopic compositions of TP soils were controlled by four geographic isotope regions: the northern, southern, western, and eastern TP. Compared with Asian large deserts, the TP showed a unique isotopic composition, which together exhibited a significant spatial change across Asia. Compared to dust isotopes in prominent sink areas, we found that the TP is an important dust source to eastern TP glaciers, the Chinese Loess Plateau, South China Sea, Japan, and Greenland. This study provides clear isotopic evidence that the TP is a major aeolian contributor in the Northern Hemisphere and may have important implications for the global aeolian cycle.
关键词	CHINESE LOESS PLATEAU ASIAN DUST LU-HF ELEMENT FRACTIONATION ICE CORE PROVENANCE SEDIMENTS AEROSOLS DEPOSITS SYSTEMS
英文关键词	Tibetan Plateau dust; Asian dust; isotopic fingerprints; atmospheric burden; hemispherical transport
语种	英语
WOS研究方向	Engineering ; Environmental Sciences & Ecology
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000677482500071
来源期刊	ENVIRONMENTAL SCIENCE & TECHNOLOGY
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/254163
作者单位	[Wei, Ting; Dong, Zhiwen; Kang, Shichang; Guo, Junming; Yang, Ling; Qin, Xiang] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryosphere Sci, Lanzhou 730000, Peoples R China; [Wei, Ting; Kang, Shichang; Yang, Ling] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Brahney, Janice] Utah State Univ, Dept Watershed Sci, Logan, UT 84322 USA; [Zong, Chunlei] Northwest Univ, State Key Lab Continental Dynam, Xian 710069, Peoples R China; [Qin, Xiang] Chinese Acad Sci, Qilian Shan Stn Glaciol & Ecoenvironm, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Wei, Ting,Brahney, Janice,Dong, Zhiwen,et al. Hf-Nd-Sr Isotopic Composition of the Tibetan Plateau Dust as a Fingerprint for Regional to Hemispherical Transport[J]. 中国科学院西北生态环境资源研究院,2021,55(14).
APA	Wei, Ting.,Brahney, Janice.,Dong, Zhiwen.,Kang, Shichang.,Zong, Chunlei.,...&Qin, Xiang.(2021).Hf-Nd-Sr Isotopic Composition of the Tibetan Plateau Dust as a Fingerprint for Regional to Hemispherical Transport.ENVIRONMENTAL SCIENCE & TECHNOLOGY,55(14).
MLA	Wei, Ting,et al."Hf-Nd-Sr Isotopic Composition of the Tibetan Plateau Dust as a Fingerprint for Regional to Hemispherical Transport".ENVIRONMENTAL SCIENCE & TECHNOLOGY 55.14(2021).