DOI: 10.1002/2013GL058806
论文题名: Holocene record of eolian activity from Genggahai Lake, northeastern Qinghai-Tibetan Plateau, China
作者: Qiang M. ; Liu Y. ; Jin Y. ; Song L. ; Huang X. ; Chen F.
刊名: Geophysical Research Letters
ISSN: 0094-10478
EISSN: 1944-10209
出版年: 2014
卷: 41, 期: 2 起始页码: 589
结束页码: 595
语种: 英语
英文关键词: eolian activity
; Holocene
; lake sediment
; northeastern Qinghai-Tibetan Plateau
; sand mobility
Scopus关键词: Atmospheric thermodynamics
; Dust
; Asian summer monsoons
; Atmospheric circulation patterns
; Dust source areas
; Holocenes
; Lake sediments
; Moisture balance
; Northeastern Qinghai-Tibetan Plateau
; Sand-sized particles
; Lakes
; atmospheric circulation
; cooling
; deposition
; dust
; eolian process
; grain size
; Holocene
; lacustrine deposit
; mobility
; moisture content
; paleoatmosphere
; sediment transport
; vegetation cover
; Atlantic Ocean
; Atlantic Ocean (North)
; China
; Genggahai Lake
; Qinghai
; Qinghai-Xizang Plateau
英文摘要: The history of dust emission and eolian activity in dust source areas remains unclear due to the scarcity of geological archives. Grain-size data from Genggahai Lake on the northeastern Qinghai-Tibetan Plateau show that sand-sized particles in the lake sediments were transported primarily by strong winds to the lake and therefore can be used as a proxy for eolian activity. Eolian activity was weak from 10.3 to 6.3 ka, which may be a response to increased vegetation cover due to the strengthened Asian summer monsoon. In contrast, eolian activity occurred episodically when the summer monsoon weakened. The abrupt, intense sand deposition events are likely to have resulted from strong wind regimes, in turn linked to cooling events in the North Atlantic. Our results suggest that changes in atmospheric circulation patterns may have strongly affected the moisture balance and wind strength in the dust source area and hence dust emissions. ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84893206250&doi=10.1002%2f2013GL058806&partnerID=40&md5=081befe995a049b6d48a5ef087566af7
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7742
Appears in Collections: 气候减缓与适应
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作者单位: MOE Key Laboratory of Western China's Environmental Systems, Lanzhou University, Lanzhou, China
Recommended Citation:
Qiang M.,Liu Y.,Jin Y.,et al. Holocene record of eolian activity from Genggahai Lake, northeastern Qinghai-Tibetan Plateau, China[J]. Geophysical Research Letters,2014-01-01,41(2).