干旱区生态环境知识资源中心(Arid): Joint influence of surface erosion and high-latitude ice-sheet extent on Asian dust cycle during the last glacial maximum

Arid

DOI	10.1017/S0016756819000335
	Joint influence of surface erosion and high-latitude ice-sheet extent on Asian dust cycle during the last glacial maximum
	Li, Xinzhou 1,2; Liu, Xiaodong 1,2; Zhou, Haibo 1
通讯作者	Li, Xinzhou
来源期刊	GEOLOGICAL MAGAZINE
ISSN	0016-7568
EISSN	1469-5081
出版年	2020
卷号	157 期号:5 页码:777-789
英文摘要	The dust cycle plays an important role in the long-term evolution of the climate and environment. In this paper, an improved climate model including aerosol processes was used to carry out a set of sensitivity experiments and comparative analyses of the effects of high-latitude ice-sheet extent and abnormal dust erosion, as well as Earth's orbital parameters and atmospheric greenhouse gas content, on dust activities during the last glacial maximum. The comparative analysis found that incorporating the abnormal surface erosion factor alone could increase dust emissions by 2.77-fold and 3.77-fold of the present-day global and Asian dust emissions, respectively. The high-latitude ice-sheet factor caused global dust emissions to increase by 1.25-fold that of the present day. Sensitivity experiments showed that increased surface erosion in Asia during the last glacial maximum made the greatest contribution to the increased dust emissions in Asia, followed by the high-latitude ice-sheet factor, while the contributions of the greenhouse gas content and orbital parameters were relatively weak. Strong dust emissions during the glacial period were therefore not only dependent on the development of the high-latitude ice sheets but were strongly associated with the underlying surface characteristics of local dust source regions.
英文关键词	dust activity ice sheet erosion factor last glacial maximum climate model
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000534526500008
WOS关键词	CLIMATE ; PACIFIC ; DESERT ; OCEAN ; DEPOSITION ; TRANSPORT ; EMISSION ; AEROSOLS ; REGIONS ; CORES
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
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/2XILL650/319014
作者单位	1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China; 2.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Li, Xinzhou,Liu, Xiaodong,Zhou, Haibo. Joint influence of surface erosion and high-latitude ice-sheet extent on Asian dust cycle during the last glacial maximum[J]. 中国科学院地球环境研究所,2020,157(5):777-789.
APA	Li, Xinzhou,Liu, Xiaodong,&Zhou, Haibo.(2020).Joint influence of surface erosion and high-latitude ice-sheet extent on Asian dust cycle during the last glacial maximum.GEOLOGICAL MAGAZINE,157(5),777-789.
MLA	Li, Xinzhou,et al."Joint influence of surface erosion and high-latitude ice-sheet extent on Asian dust cycle during the last glacial maximum".GEOLOGICAL MAGAZINE 157.5(2020):777-789.