干旱区生态环境知识资源中心(Arid): Differential ice volume and orbital modulation of Quaternary moisture patterns between Central and East Asia

Arid

DOI	10.1016/j.epsl.2019.115901
	Differential ice volume and orbital modulation of Quaternary moisture patterns between Central and East Asia
	Li, Guoqiang 1; Yang, He 1; Stevens, Thomas 3; Zhang, Xiaojian 4; Zhang, Haixia 1; Wei, Haitao 1; Zheng, Weipeng 5,8; Li, Lijuan 5; Liu, Xiangjun 6; Chen, Jianhui 1; Xia, Dunsheng 1; Oldknow, Chris 1; Ye, Wei 7; Chen, Fahu1,2
通讯作者	Li, Guoqiang
来源期刊	EARTH AND PLANETARY SCIENCE LETTERS
ISSN	0012-821X
EISSN	1385-013X
出版年	2020
卷号	530
英文摘要	Desertification is of pressing environmental concern in large parts of Asia and directly affects millions of people. Arid Central Asia (ACA) in particular is highly sensitive to desertification and environmental change. Climate change in ACA may be driven by westerly circulation or monsoon variation. However, no consensus exists over their relative importance during the Quaternary and this greatly restricts our understanding of how this region may be affected by future climate change. Here we use the most detailed luminescence dating age model yet produced for ACA for three loess records in the Tianshan Mountains spanning the past 250 ka to show a sharp dichotomy in moisture variation between lowland and high mountain areas. The lowland areas of ACA are subjected to persistent aridity during past 250 ka, while highland areas clearly show dry-glacial and moist-interglacial changes, synchronous to moisture variability in monsoonal East Asia, and both co-varying with global ice volume and greenhouse gas (GHG) variation. In contrast, moisture variability across ACA within interglacials varies inversely with insolation-driven precessional changes. This is directly out of phase with the moisture changes of East Asia, which co-vary with precessional insolation changes, and indicates the influence of Westerly circulation in ACA. Our Flexible Global Ocean-Atmosphere-Land System model simulations further reveal that coupled ice volume and GHG variations dominated climatic variability in both ACA and East Asia over glacial interglacial cycles. However, the out of phase relationship between the intensity of the Westerly and East Asian monsoon systems during interglacial periods indicates that precessional forcing is responsible for differences in moisture patterns between ACA and East Asia. These observations indicate that moisture levels will not increase even in high altitude regions of ACA over the next several millennia; rather desertification is likely to worsen resulting from stabilization of the Westerlies as a result of low summer insolation. (C) 2019 Elsevier B.V. All rights reserved.
英文关键词	arid central Asia luminescence dating loess climatic changes Tianshan Mountains glacial-interglacial cycles, interglacial
类型	Article
语种	英语
国家	Peoples R China ; Sweden
收录类别	SCI-E
WOS记录号	WOS:000508747300026
WOS关键词	ARID CENTRAL-ASIA ; TIANSHAN MOUNTAINS ; K-FELDSPAR ; LOESS ; HOLOCENE ; CLIMATE ; LUMINESCENCE ; MONSOON ; RECORD ; MODEL
WOS类目	Geochemistry & Geophysics
WOS研究方向	Geochemistry & Geophysics
EI主题词	2020-01-15
来源机构	兰州大学 ; 中国科学院大气物理研究所 ; 南京大学 ; 中国科学院青藏高原研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/312482
作者单位	1.Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Gansu, Peoples R China; 2.Chinese Acad Sci, Inst Tibetan Plateau Res, CAS Ctr Excellence Tibetan Plateau Earth Sci, Key Lab Alpine Ecol LAE, Beijing 100101, Peoples R China; 3.Uppsala Univ, Dept Earth Sci, SE-75236 Uppsala, Sweden; 4.Nanjing Univ, Sch Geog & Oceanog Sci, Nanjing 210023, Jiangsu, Peoples R China; 5.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing 100029, Peoples R China; 6.Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Gansu, Peoples R China; 7.Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua 321004, Peoples R China; 8.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Guoqiang,Yang, He,Stevens, Thomas,et al. Differential ice volume and orbital modulation of Quaternary moisture patterns between Central and East Asia[J]. 兰州大学, 中国科学院大气物理研究所, 南京大学, 中国科学院青藏高原研究所,2020,530.
APA	Li, Guoqiang.,Yang, He.,Stevens, Thomas.,Zhang, Xiaojian.,Zhang, Haixia.,...&Chen, Fahu.(2020).Differential ice volume and orbital modulation of Quaternary moisture patterns between Central and East Asia.EARTH AND PLANETARY SCIENCE LETTERS,530.
MLA	Li, Guoqiang,et al."Differential ice volume and orbital modulation of Quaternary moisture patterns between Central and East Asia".EARTH AND PLANETARY SCIENCE LETTERS 530(2020).