干旱区生态环境知识资源中心(Arid): Holocene vegetation dynamics of Horqin Sandy Land in northern China inferred from the phytolith record of a sand-paleosol section

Arid

DOI	10.1016/j.palaeo.2023.111571
	Holocene vegetation dynamics of Horqin Sandy Land in northern China inferred from the phytolith record of a sand-paleosol section
	Yang, Zhuo; Gao, Guizai; Jie, Dongmei; Wang, Jiangyong; Niu, Honghao; Liu, Ziping; Meng, Meng; Song, Lina; Chen, Niankang; Wei, Yuanxiang; Yu, Jihuai
通讯作者	Gao, GZ ; Jie, DM
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
EISSN	1872-616X
出版年	2023
卷号	622
英文摘要	Ecosystems in arid regions with sandy substrates are vulnerable to various environmental challenges. Understanding the vegetation evolution of such regions over a long timescale and the possible drivers of change is important for optimizing ecological restoration. In this paper, we present multi-proxy data to understand Holocene vegetation dynamics and their drivers in the Horqin Sandy Land in northern China. Phytoliths are used to reconstruct vegetation; grain size and magnetic susceptibility are used to reconstruct the climate; and sedimentary charcoal contents and the numbers of regional archaeological sites are used to reconstruct the fire activity and human activity intensity, respectively. Results indicate that the Horqin Sandy Land was covered mainly by grassland vegetation during the Holocene, and that the trajectory of vegetation evolution was as follows: sparse and species-poor Leymus chinensis grassland from 9300 to 6150 cal yr BP, relatively sparse and species-rich mesophytic herb grassland from 6150 to 2300 cal yr BP, and dense and species-rich L. chinensis grassland from 2300 to 250 cal yr BP. Climate change was the main driver of vegetation evolution, but fire and human activities also influenced the vegetation to varying degrees. Fire made the greatest contribution to the vegetation change during the 6150-2300 cal yr BP interval, and human activities contributed throughout the 8200-2300 cal yr BP interval. The evolution of plant species richness and the number of C-3 plants show a significant similar to 1000-yr periodicity during 9300-4500 cal yr BP, which we speculate was caused by the effect of solar activity on East Asian monsoon intensity, which likely controlled the vegetation change on a millennial timescale.
英文关键词	Phytoliths Sand-paleosol Paleovegetation Horqin Sandy Land Holocene
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001058801800001
WOS关键词	HIGH-RESOLUTION ; DUNE EVOLUTION ; CLIMATE ; HISTORY ; MONSOON ; POLLEN ; DESERTIFICATION ; MECHANISMS ; DUNEFIELD ; CHARCOAL
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS研究方向	Physical Geography ; Geology ; Paleontology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397960
推荐引用方式 GB/T 7714	Yang, Zhuo,Gao, Guizai,Jie, Dongmei,et al. Holocene vegetation dynamics of Horqin Sandy Land in northern China inferred from the phytolith record of a sand-paleosol section[J],2023,622.
APA	Yang, Zhuo.,Gao, Guizai.,Jie, Dongmei.,Wang, Jiangyong.,Niu, Honghao.,...&Yu, Jihuai.(2023).Holocene vegetation dynamics of Horqin Sandy Land in northern China inferred from the phytolith record of a sand-paleosol section.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,622.
MLA	Yang, Zhuo,et al."Holocene vegetation dynamics of Horqin Sandy Land in northern China inferred from the phytolith record of a sand-paleosol section".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 622(2023).