干旱区生态环境知识资源中心(Arid): Atmospheric Dust Variations in the Ili Basin, Northwest China, During the Last Glacial Period as Revealed by a High Mountain Loess-Paleosol Sequence

Arid

DOI	10.1029/2019JD030470
	Atmospheric Dust Variations in the Ili Basin, Northwest China, During the Last Glacial Period as Revealed by a High Mountain Loess-Paleosol Sequence
	Li, Yue 1,2,3; Song, Yougui 1,2; Qiang, Mingrui 4; Miao, Yunfa 5; Zeng, Mengxiu 6
通讯作者	Song, Yougui
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN	2169-897X
EISSN	2169-8996
出版年	2019
卷号	124 期号:15 页码:8449-8466
英文摘要	Atmospheric dust emission is closely related to conditions in the source area. Typically, loess deposits represent the accumulation of locally derived dust, providing the opportunity to reconstruct past variations in dust emission and hence insights into dust-climate linkages and the underlying mechanisms of dust mobilization, transport, and deposition. As yet, however, information on patterns of dust emission in Central Asia is sparse. Here we present the last glacial sedimentological data of a loess section from the Ili Basin, northwest China. Our results show that the variations in sand-sized fraction can indicate frequencies of occurring strong winds, which was likely driven by the Eurasian ice sheets during Marine Isotope Stage Stage 2 (MIS2) and MIS4 and by the boreal summer insolation during MIS3. The mass accumulation rate (MAR) reflects an integration of sediment availability in the provenance, vegetation cover in the deposition area, and wind regime. The differences of driving factors potentially explain the observed mismatches between variations in grain size and MAR. Comparison of dust fluxes observed in Greenland ice core and the North Pacific deep-sea sediment with the Central/East Asian MAR records supports the idea that the high flux of long-distance export of Asian dust is closely associated with the Siberian High and also influenced by changes in the atmospheric transport efficiency and likely by the source strength.
英文关键词	Central Asia loess last glacial dust-climate linkage dynamic mechanism
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000482475000005
WOS关键词	ARID CENTRAL-ASIA ; CHRONOLOGICALLY ORDERED SAMPLES ; HOLOCENE MOISTURE EVOLUTION ; QINGHAI-TIBETAN PLATEAU ; ABRUPT CLIMATIC EVENTS ; MASS ACCUMULATION RATE ; LATE QUATERNARY LOESS ; GREENLAND ICE-CORE ; GRAIN-SIZE ; NORTHERN CHINA
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	中国科学院地球环境研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217075
作者单位	1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Shaanxi, Peoples R China; 2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian, Shaanxi, Peoples R China; 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China; 4.South China Normal Univ, Sch Geog, Guangzhou, Guangdong, Peoples R China; 5.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou, Gansu, Peoples R China; 6.Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Li, Yue,Song, Yougui,Qiang, Mingrui,et al. Atmospheric Dust Variations in the Ili Basin, Northwest China, During the Last Glacial Period as Revealed by a High Mountain Loess-Paleosol Sequence[J]. 中国科学院地球环境研究所,2019,124(15):8449-8466.
APA	Li, Yue,Song, Yougui,Qiang, Mingrui,Miao, Yunfa,&Zeng, Mengxiu.(2019).Atmospheric Dust Variations in the Ili Basin, Northwest China, During the Last Glacial Period as Revealed by a High Mountain Loess-Paleosol Sequence.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(15),8449-8466.
MLA	Li, Yue,et al."Atmospheric Dust Variations in the Ili Basin, Northwest China, During the Last Glacial Period as Revealed by a High Mountain Loess-Paleosol Sequence".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.15(2019):8449-8466.