Asynchronous variations of East Asian summer monsoon, vegetation and soil formation at Yulin (North China) in the Holocene

doi:10.1002/jqs.3415

	Asynchronous variations of East Asian summer monsoon, vegetation and soil formation at Yulin (North China) in the Holocene
	Liang, Chenghong 3; Lu, Huayu 2,3; Gu, Yao 3; Zhao, Cheng 3; Liu, Weiguo 1; Zhang, Xiaojian 3; Zhang, Hongyan 3
刊名	JOURNAL OF QUATERNARY SCIENCE
	2022-03-10
页码	8
关键词	climate change East Asian summer monsoon Holocene loess n-alkanes delta D
ISSN号	0267-8179
DOI	10.1002/jqs.3415
通讯作者	Lu, Huayu(huayulu@nju.edu.cn)
英文摘要	In the East Asian monsoon region, Chinese speleothem delta O-18 records exhibit a maximum monsoon strength during the early Holocene. However, other proxy data from lakes or loess, interpreted as monsoon rainfall, show a mid-Holocene monsoon optimum. This discrepancy may come from specific climate interpretation of different proxies. Here we report multiproxy records from a single loess-palaeosol sequence at Yulin in the monsoon marginal northern China, based on an independent and high-precision chronology. Our long-chain n-alkane delta D values, together with related biomarker proxies including the average chain length and concentration of long-chain n-alkanes, reveal a weakening trend in monsoon strength and less woody vegetation since similar to 6 ka. However, other soil formation-related proxies, such as magnetic susceptibility, grain-size distribution and total organic carbon, show a decreasing trend since 4-3 ka. We find that monsoon and vegetation are controlled by insolation variation, while soil formation is more related to temperature and humidity changes. Our multiple proxy comparison reveals different controlling mechanisms leading to different interpretations in monsoon, vegetation and soil formation reconstructions. This finding suggests that previous debates on Holocene monsoon changes in East Asia probably stem from the specific proxy interpretation. (C) 2022 John Wiley & Sons, Ltd.
资助项目	National Natural Science Foundation of China[41690111] ; National Natural Science Foundation of China[42021001] ; National Natural Science Foundation of China[41920104005]
WOS关键词	WAX N-ALKANES ; OXYGEN ISOTOPIC COMPOSITION ; QINGHAI-TIBET PLATEAU ; LAST GLACIAL MAXIMUM ; LOESS PLATEAU ; LAKE QINGHAI ; PALEOSOL SEQUENCE ; PRECIPITATION ; CARBON ; CLIMATE
WOS研究方向	Physical Geography ; Geology
语种	英语
出版者	WILEY
WOS记录号	WOS:000766686800001
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/17502]
专题	地球环境研究所_现代环境研究室
通讯作者	Lu, Huayu
作者单位	1.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian, Peoples R China 2.Qinghai Normal Univ, Key Lab Tibetan Plateau Land Surface Proc & Ecol, Minist Educ, Xining, Peoples R China 3.Nanjing Univ, Sch Geog & Ocean Sci, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Liang, Chenghong,Lu, Huayu,Gu, Yao,et al. Asynchronous variations of East Asian summer monsoon, vegetation and soil formation at Yulin (North China) in the Holocene[J]. JOURNAL OF QUATERNARY SCIENCE,2022:8.
APA	Liang, Chenghong.,Lu, Huayu.,Gu, Yao.,Zhao, Cheng.,Liu, Weiguo.,...&Zhang, Hongyan.(2022).Asynchronous variations of East Asian summer monsoon, vegetation and soil formation at Yulin (North China) in the Holocene.JOURNAL OF QUATERNARY SCIENCE,8.
MLA	Liang, Chenghong,et al."Asynchronous variations of East Asian summer monsoon, vegetation and soil formation at Yulin (North China) in the Holocene".JOURNAL OF QUATERNARY SCIENCE (2022):8.