气候变化领域集成服务门户(CCPortal): Regional drought shifts (1710–2010) in East Central Asia and linkages with atmospheric circulation recorded in tree-ring δ 18 O

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DOI	10.1007/s00382-018-4215-2
	Regional drought shifts (1710–2010) in East Central Asia and linkages with atmospheric circulation recorded in tree-ring δ 18 O
	Xu G.; Liu X.; Trouet V.; Treydte K.; Wu G.; Chen T.; Sun W.; An W.; Wang W.; Zeng X.; Qin D.
发表日期	2019
ISSN	0930-7575
起始页码	713
结束页码	727
卷号	52 期号:2020-01-02
英文摘要	Drought occurrence and duration in central Asia are of important socioeconomic, ecological, and geophysical significance and have received increasing research attention in recent years. Understanding long-term drought trends and their driving forces require reliable records of past drought variability with broad spatial representativeness. Here, we compiled four tree-ring δ 18 O records from eastern central Asia (ECA) and composited them into a drought-sensitive proxy to explore regional ECA moisture variations over the past 301 years (1710–2010 CE). A robust regional standardized precipitation-evapotranspiration index (SPEI) reconstruction was established based on the tree-ring cellulose δ 18 O fractionation mechanism and statistically significant proxy-climate relationships. We identified prominent droughts in 1710–1770, 1810–1830, and the beginning of the twenty-first century, and a regime shift to a persistently wet period from the 1880s to 2000. Our reconstruction reveals the impact of drought and pluvial patterns on the decline of Zhungar Empire, and on historical agricultural and socio-economical activities, including increased migration into ECA during the 1770–1800 pluvial. Our findings also suggest that wet conditions in the twentieth century in ECA were related to a strengthening of the westerly circulation and thus shed light on large-scale atmospheric circulation dynamics in central Asia. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Drought reconstruction; Eastern Central Asia; SPEI; Stable oxygen isotopes; Tree rings
语种	英语
scopus关键词	atmospheric circulation; drought; evapotranspiration; isotopic fractionation; oxygen isotope; precipitation (climatology); proxy climate record; reconstruction; stable isotope; tree ring; Central Asia
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146587
作者单位	State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, 710075, China; Key Laboratory of Tree-ring Physical and Chemical Research of China Meteorological Administration, Urumqi, 830002, China; School of Geography and Tourism, Shaanxi Normal University, Xi’an, Shannxi 710119, China; Laboratory of Tree-Ring Research, University of Arizona, Tucson, 85721, United States; Dendrosciences Group, Swiss Federal Research Institute WSL, Zürcherstrasse 111, Birmensdorf, 8903, Switzerland
推荐引用方式 GB/T 7714	Xu G.,Liu X.,Trouet V.,等. Regional drought shifts (1710–2010) in East Central Asia and linkages with atmospheric circulation recorded in tree-ring δ 18 O[J],2019,52(2020-01-02).
APA	Xu G..,Liu X..,Trouet V..,Treydte K..,Wu G..,...&Qin D..(2019).Regional drought shifts (1710–2010) in East Central Asia and linkages with atmospheric circulation recorded in tree-ring δ 18 O.Climate Dynamics,52(2020-01-02).
MLA	Xu G.,et al."Regional drought shifts (1710–2010) in East Central Asia and linkages with atmospheric circulation recorded in tree-ring δ 18 O".Climate Dynamics 52.2020-01-02(2019).