干旱区生态环境知识资源中心(Arid): New evidence for Holocene vegetation variations and their drivers in an East Asian sandy land: A perspective from aeolian sand-paleosol deposits

Arid

DOI	10.1016/j.palaeo.2022.111375
	New evidence for Holocene vegetation variations and their drivers in an East Asian sandy land: A perspective from aeolian sand-paleosol deposits
	Niu, Honghao; Sack, Dorothy; Gao, Guizai; Wang, Jiangyong; Meng, Meng; Jie, Dongmei
通讯作者	Jie, DM
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
EISSN	1872-616X
出版年	2023
卷号	611
英文摘要	Past vegetation responses to climate change in semi-arid and arid regions are not yet well understood, especially in northeastern China. This study provides new evidence for long-term vegetation changes and their possible driving forces in northeastern China's Songnen sandy lands by employing a multiproxy approach applied to well -dated aeolian sand-paleosol sediments. Pollen analyses and data on total organic carbon (TOC) are used to reconstruct paleovegetation dynamics whereas grain size data are used for interpreting independent paleo-climate changes. Results show that Chenopodiaceae and Ephedra plants dominated in a brief early period that was followed by an abrupt transition to Artemisia and Asteraceae plants with the encroachment of dry steppes between 9000 and 7000 cal yr BP. From 7000 to 3200 cal yr BP, Chenopodiaceae plant dominated the region. During the 3200 to 400 cal yr BP interval Ulmus, Salix, and Tribulus abundance increased while Chenopodiaceae abundance decreased. After 400 cal yr BP, Poaceae plants generally expanded and the regional landscape alternated between dry steppe and steppe. In addition, changes in the regional vegetation exhibit 1000 yr pe-riodic oscillations especially during 9000 to 4500 cal yr BP. By comparing these features with regional climate change, we suggest that regional paleovegetation dynamics were linked to East Asia Summer Monsson (EASM) circulation. These findings reveal a pronounced long-term relationship between vegetation and climate change in semi-arid regions worldwide.
英文关键词	Pollen Grain-size Arid regions Holocene EASM
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000973838600001
WOS关键词	EMPIRICAL MODE DECOMPOSITION ; ARID CENTRAL-ASIA ; POLLEN RECORD ; MONSOON CLIMATE ; LOESS PLATEAU ; QAIDAM BASIN ; HUMAN IMPACT ; NE CHINA ; MOUNTAINS ; HISTORY
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/2XILL650/397953
推荐引用方式 GB/T 7714	Niu, Honghao,Sack, Dorothy,Gao, Guizai,et al. New evidence for Holocene vegetation variations and their drivers in an East Asian sandy land: A perspective from aeolian sand-paleosol deposits[J],2023,611.
APA	Niu, Honghao,Sack, Dorothy,Gao, Guizai,Wang, Jiangyong,Meng, Meng,&Jie, Dongmei.(2023).New evidence for Holocene vegetation variations and their drivers in an East Asian sandy land: A perspective from aeolian sand-paleosol deposits.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,611.
MLA	Niu, Honghao,et al."New evidence for Holocene vegetation variations and their drivers in an East Asian sandy land: A perspective from aeolian sand-paleosol deposits".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 611(2023).