Holocene negative coupling of summer temperature and moisture availability over southeastern arid Central Asia

doi:10.1007/s00382-020-05319-x

IEECAS OpenIR > 古环境研究室

	Holocene negative coupling of summer temperature and moisture availability over southeastern arid Central Asia
	Li, Jianyong 1,2; Wang, Ninglian 1,2,3; Dodson, John 4; Yan, Hong 4,5,6; Zhang, Xiaojian 7; Jia, Peter Weiming 8; Seppa, Heikki 9
通讯作者	Li, Jianyong(lijy@nwu.edu.cn) ; Wang, Ninglian(nlwang@nwu.edu.cn)
	2020-06-11
发表期刊	CLIMATE DYNAMICS
ISSN	0930-7575
页码	22
摘要	The Holocene moisture-temperature correlation on varying spatial-temporal scales in arid Central Asia (ACA) is still controversial. It has been widely reported that ACA experienced multi-centennial alternations between warm/dry and cold/wet climates over the past two millennia. However, less attention has focused on orbital-scale moisture-temperature relationship at a regional scale across ACA. Here, we contribute a framework including a set of quantitative algorithms to acquire reliable pollen-based climatic reconstructions. We apply this methodology to a new pollen record from a wetland in northern Xinjiang (southeastern ACA) for quantitative reconstructions of moisture availability (actual/potential evapotranspiration ratio, AET/PET) and summer temperature (mean temperature of the warmest month, MTWA) over circa the last 10,300 years. We select AET/PET and MTWA because they are evaluated to be most statistically independent and ecologically significant. The effect of differing spatial extents of calibration-sets on model performance is tested to determine the optimal extent. We critically assess the reliability of all reconstructions through calculations of statistical significance, analogue quality and goodness-of-fit statistics. Our final reconstructions are statistically significant with independent features of AET/PET and MTWA, showing an increasing (declining) trend of Holocene moisture (temperature). This anti-phase pattern is consistent with other records and model simulations across southeastern ACA. The data-model consistency postulates that (i) the glacier meltwater from Tien Shan ('Water Tower of Central Asia') is crucial to support major streamflow and watersheds over ACA, and (ii) the Holocene wetting trend may be determined by the interacting effects between decreased summer temperature and increased winter precipitation.
关键词	Southeastern ACA Pollen AET PET MTWA Holocene
DOI	10.1007/s00382-020-05319-x
关键词[WOS]	CLIMATE CALIBRATION-SET ; SOUTHERN ALTAI MOUNTAINS ; NORTHERN XINJIANG ; MODERN POLLEN ; TIEN-SHAN ; ENVIRONMENTAL-CHANGES ; VEGETATION CHANGES ; TIBETAN PLATEAU ; SURFACE-POLLEN ; BOSTEN LAKE
收录类别	SCI ; SCI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20060201] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19070302] ; National Key Research and Development Program of China[2017YFC0404302] ; National Nature Science Foundation of China[41801090] ; West Light Foundation of the Chinese Academy of Sciences[XAB2016B01]
WOS研究方向	Meteorology & Atmospheric Sciences
项目资助者	Strategic Priority Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; National Nature Science Foundation of China ; West Light Foundation of the Chinese Academy of Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000539985000001
出版者	SPRINGER
引用统计	被引频次：33[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/14936
专题	古环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Li, Jianyong; Wang, Ninglian
作者单位	1.Northwest Univ, Coll Urban & Environm Sci, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian 710127, Peoples R China 2.Northwest Univ, Coll Urban & Environm Sci, Inst Earth Surface Syst & Hazards, Xian 710127, Peoples R China 3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 5.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China 6.CAS Ctr Excellence Quaternary Sci & Global Change, Xian, Peoples R China 7.Nanjing Univ, Sch Geog & Oceanog Sci, Nanjing 210093, Peoples R China 8.Univ Sydney, CCANESA, Dept Archaeol, Sydney, NSW 2006, Australia 9.Univ Helsinki, Dept Geosci & Geog, Helsinki 00014, Finland
推荐引用方式 GB/T 7714	Li, Jianyong,Wang, Ninglian,Dodson, John,et al. Holocene negative coupling of summer temperature and moisture availability over southeastern arid Central Asia[J]. CLIMATE DYNAMICS,2020:22.
APA	Li, Jianyong.,Wang, Ninglian.,Dodson, John.,Yan, Hong.,Zhang, Xiaojian.,...&Seppa, Heikki.(2020).Holocene negative coupling of summer temperature and moisture availability over southeastern arid Central Asia.CLIMATE DYNAMICS,22.
MLA	Li, Jianyong,et al."Holocene negative coupling of summer temperature and moisture availability over southeastern arid Central Asia".CLIMATE DYNAMICS (2020):22.