GDGTs-based quantitative reconstruction of water level changes and precipitation at Daye Lake, Qinling Mountains (central-east China), over the past 2000 years

doi:10.1016/j.quascirev.2021.107099

IEECAS OpenIR > 古环境研究室

	GDGTs-based quantitative reconstruction of water level changes and precipitation at Daye Lake, Qinling Mountains (central-east China), over the past 2000 years
	Chen, Lin 1; Huang, Zhendong 1; Niu, Lili 1; Dong, Weimiao 2,3; Xiao, Shun 4; Chen, Shengqian 1; Zhao, Jiaju 5; Wu, Duo 1; Zhou, Aifeng 1
通讯作者	Dong, Weimiao(dongwm@fudan.edu.cn) ; Zhou, Aifeng(zhouaf@lzu.edu.cn)
	2021-09-01
发表期刊	QUATERNARY SCIENCE REVIEWS
ISSN	0277-3791
卷号	267 页码:9
摘要	Alpine lakes are natural rain gauges, and reconstructing changes in their water level is a key to understanding the regional hydrological environment, climate change and vegetation evolution. Precipitation in the northern and the southern parts of the eastern monsoon region of China exhibits a centennial scale inverse relationship over the past 2000 years; however, there is substantial uncertainty regarding the temporal range of this dipolar pattern. In order to better understand this north-south pattern of precipitation variation and its driving mechanism, we analyzed isoGDGTs biomarker compounds in a sediment core from alpine Daye Lake, in the Qinling Mountains, in the north-south climatic transition zone of eastern China. Measurements of %Cren were used to reconstruct changes in lake level over the past 2000 years. The results show that, from 240 to 1300 CE, prior to the Little Ice Age, the lake level changes were consistent with the precipitation record for the northern part of eastern China, with the lake reaching its highest level of 25 +/- 7.17 mat 555 CE; subsequently, the lake fell to its lowest level of 12 +/- 7.17 m at 1030 CE. During the Little Ice Age, the water level maintained an increasing trend, especially during the last three centuries, when it remained above 20 +/- 7.17 m, which is consistent with the precipitation record from southern China. The results indicate that the climatically transitional Qinling region has a complex history of climate change. During the early part of the record (240-130 0 CE), the level of Daye Lake and the East Asian summer monsoon precipitation were in phase, controlled mainly by the strength of the East Asian summer monsoon. In contrast, since the Little Ice Age (1300 CE to the present), under the influence of ENSO, the westward extension and southward retreat of the West Pacific Subtropical High caused the rain belt to shift southward, decreasing the water vapor supply to the Qinling Mountains. The ascent of moisture-bearing air over the Qinling Mountains resulted in orographic rainfall, while the weakening of evaporation during the Little Ice Age reduced the evaporation of water vapor and also contributed to the continued rise of the level of Daye Lake. The abundant precipitation in the Qinling region during the Little Ice Age provided water resources to sustain human activities in the downstream Weihe Plain, but was also a major cause of flooding. (C) 2021 Elsevier Ltd. All rights reserved.
关键词	Daye lake Water depth reconstruction Precipitation pattern Little ice age %Cren
DOI	10.1016/j.quascirev.2021.107099
关键词[WOS]	DIALKYL GLYCEROL TETRAETHERS ; TIBETAN PLATEAU IMPLICATIONS ; ENVIRONMENTAL CONTROLS ; LIPID DISTRIBUTIONS ; MEMBRANE-LIPIDS ; ASIAN MONSOON ; QINGHAI ; HOLOCENE ; SOILS ; CLIMATE
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[41771208] ; National Natural Science Foundation of China[41790421]
WOS研究方向	Physical Geography ; Geology
项目资助者	National Natural Science Foundation of China
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000689256400007
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：7[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/361006/16943
专题	古环境研究室
通讯作者	Dong, Weimiao; Zhou, Aifeng
作者单位	1.Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China 2.Fudan Univ, Dept Cultural Heritage & Museol, Shanghai 200433, Peoples R China 3.Fudan Univ, Inst Archaeol Sci, Shanghai 200433, Peoples R China 4.Shaanxi Normal Univ, Dept Environm Sci, Xian 710119, Peoples R China 5.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Chen, Lin,Huang, Zhendong,Niu, Lili,et al. GDGTs-based quantitative reconstruction of water level changes and precipitation at Daye Lake, Qinling Mountains (central-east China), over the past 2000 years[J]. QUATERNARY SCIENCE REVIEWS,2021,267:9.
APA	Chen, Lin.,Huang, Zhendong.,Niu, Lili.,Dong, Weimiao.,Xiao, Shun.,...&Zhou, Aifeng.(2021).GDGTs-based quantitative reconstruction of water level changes and precipitation at Daye Lake, Qinling Mountains (central-east China), over the past 2000 years.QUATERNARY SCIENCE REVIEWS,267,9.
MLA	Chen, Lin,et al."GDGTs-based quantitative reconstruction of water level changes and precipitation at Daye Lake, Qinling Mountains (central-east China), over the past 2000 years".QUATERNARY SCIENCE REVIEWS 267(2021):9.