干旱区生态环境知识资源中心(Arid): Holocene lake level, vegetation, and climate at the East Asian summer monsoon margin: A record from the Lake Wulanhushao basin, southern Inner Mongolia

Arid

DOI	10.1016/j.palaeo.2020.110051
	Holocene lake level, vegetation, and climate at the East Asian summer monsoon margin: A record from the Lake Wulanhushao basin, southern Inner Mongolia
	Chen, Chunzhu; Tao, Shuxian; Zhao, Wenwei; Jin, Ming; Wang, Zhong; Li, Huan; Ren, Haiyun; Li, Guoqiang
通讯作者	Zhao, WW (corresponding author), Nantong Univ, Sch Geog Sci, Nantong 210093, Peoples R China. ; Li, GQ (corresponding author), Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China.
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
EISSN	1872-616X
出版年	2021
卷号	561
英文摘要	Understanding the impact of Holocene climate variations in arid northern China will provide important insights into a better prediction of future water availability in this region. In this study, we present paleoenvironment data from the lacustrine-aeolian deposit sections and a lake sediment core from the Lake Wulanhushao basin, southern Inner Mongolia. Optically Stimulated Luminescence dating and elevation measurements on the outcrop sections provide an estimation of lake-level changes for the past 10.1 kyr. For the sediment core, multi-proxy analyses of pollen, grain size, loss-on-ignition, element, and chroma were undertaken. The pollen result indicates a tendency of moisture increase from 10.6 to 9.1 cal kyr B.P., providing moderate conditions for the gradual expansion of trees in the mountains. The highest moisture availability was reached from 9.1 to 5.6 cal kyr B.P. leading to the maximal arboreal extent. After then, aridification in the region was evidenced by the declined trees and the increase of desert components. Comparing with the pollen result, non-pollen proxies from the lake sediment core and the outcrop sections indicate a slightly different climate pattern. That is, the initiation of Holocene climate optimum in the lake catchment, suggested by a high lake level, increased biological production, and an enhanced chemical weathering occurred about 1.5 kyr earlier than the arboreal expansion in the distal mountains. While the climate patterns were more or less consistent as inferred from the lacustrine pollen records at the East Asian Summer Monsoon margin, catchment-specific responses to regional climate variations might explain this perplexing discrepancy between pollen and non-pollen proxies. Our study emphasizes the importance of multi-proxy analyses from various perspectives when investigating the local and regional responses to Holocene climate variations.
英文关键词	Asian monsoon Climate optimum Lake level change Pollen Luminescence dating
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000595639600008
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS研究方向	Physical Geography ; Geology ; Paleontology
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348081
作者单位	[Chen, Chunzhu; Zhao, Wenwei; Li, Huan] Nantong Univ, Sch Geog Sci, Nantong 210093, Peoples R China; [Tao, Shuxian; Jin, Ming; Wang, Zhong; Li, Guoqiang] Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China; [Ren, Haiyun] Shanxi Prov Inst Archaeol, Taiyuan 030001, Peoples R China
推荐引用方式 GB/T 7714	Chen, Chunzhu,Tao, Shuxian,Zhao, Wenwei,et al. Holocene lake level, vegetation, and climate at the East Asian summer monsoon margin: A record from the Lake Wulanhushao basin, southern Inner Mongolia[J]. 兰州大学,2021,561.
APA	Chen, Chunzhu.,Tao, Shuxian.,Zhao, Wenwei.,Jin, Ming.,Wang, Zhong.,...&Li, Guoqiang.(2021).Holocene lake level, vegetation, and climate at the East Asian summer monsoon margin: A record from the Lake Wulanhushao basin, southern Inner Mongolia.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,561.
MLA	Chen, Chunzhu,et al."Holocene lake level, vegetation, and climate at the East Asian summer monsoon margin: A record from the Lake Wulanhushao basin, southern Inner Mongolia".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 561(2021).