Megacycles of climate and vegetation in East Asia since 3 Ma

doi:10.1016/j.catena.2023.107195

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	Megacycles of climate and vegetation in East Asia since 3 Ma
	Zhou, Xinying1,2,3 ; Yang, Jilong 4; Xiao, Guoqiao 5; Wang, Jian 1,2; Hu, Yunzhuang 4; Zheng, Yan 1,2,3; Liu, Junchi 1,2,3; Li, Xiaoqiang1,2,3
	2023-08-01
发表期刊	CATENA
ISSN	0341-8162
卷号	229 期号:0 页码:12
摘要	Although there are numerous long-term terrestrial climate records based on biological and other indicators spanning the last 3 Myr in Asia, there are few studies on the vegetation evolution on a continental scale. Here we present a long (-3 Myr) pollen record from core LN-1 from the North China Plain. The record shows that during the interval of 3.0-1.2 Ma, prior to the Mid-Pleistocene transition, the vegetation of the North China Plain was mainly open deciduous broadleaved forest, and that there were five cool and dry phases when conifers and herbs expanded: during 2.7-2.6 Ma, 2.2-2.1 Ma, 1.75-1.85 Ma, 1.5-1.6 Ma, and 1.3-1.4 Ma. Comparison with other pollen records from the East Asian monsoon region reveals a similar series of cool and dry intervals. These extended cool and dry intervals occurred during a period of high Earth orbital eccentricity, and were most likely related to the status of the global ocean carbon reservoir, under eccentricity forcing. We suggest that feedback from the terrestrial vegetation may have interrupted the dominant 41-kyr climatic cyclicity associated with middle and high latitudes of the Northern Hemisphere that had persisted since the Late Pliocene. After 1.2 Ma, the vegetation of the North China Plain changed to steppe and shrub steppe, while at the same time grassland expansion and forest recession occurred in northern China. The associated global cooling led to decreases in ocean temperatures, land-sea exchanges, and monsoon precipitation, which together drove the aridification of the Asian interior. We combined our data with eight published pollen records, and the zonal vegetation maps for East Asia since 3 Ma were generated.
关键词	Pliocene-pleistocene North China Plain Vegetation evolution Climate change
DOI	10.1016/j.catena.2023.107195
关键词[WOS]	AFRICAN CLIMATE ; POLLEN RECORD ; PLEISTOCENE ; MONSOON ; LOESS ; RHYTHMS ; TRENDS ; CALIBRATION ; INSOLATION ; EVOLUTION
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; CAS Project for Young Scientists in Basic Research[YSBR-019] ; National Natural Sci-ence Foundation of China (NSFC)[T2192952] ; National Key RD Projects[2022YFF0801102] ; Youth Innova-tion Promotion Association of the Chinese Academy of Sciences[2022071]
WOS研究方向	Geology ; Agriculture ; Water Resources
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS记录号	WOS:001005753100001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/22683
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Zhou, Xinying; Yang, Jilong; Xiao, Guoqiao
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China 4.China Geol Survey, Tianjin Ctr, Key Lab Coast Geo Environm, Tianjin, Peoples R China 5.Univ Geosci, Sch Geog & Informat Engn, Wuhan, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Xinying,Yang, Jilong,Xiao, Guoqiao,et al. Megacycles of climate and vegetation in East Asia since 3 Ma[J]. CATENA,2023,229(0):12.
APA	Zhou, Xinying.,Yang, Jilong.,Xiao, Guoqiao.,Wang, Jian.,Hu, Yunzhuang.,...&Li, Xiaoqiang.(2023).Megacycles of climate and vegetation in East Asia since 3 Ma.CATENA,229(0),12.
MLA	Zhou, Xinying,et al."Megacycles of climate and vegetation in East Asia since 3 Ma".CATENA 229.0(2023):12.

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