Plio-Pleistocene vegetation changes in the North China Plain: Magnetostratigraphy, oxygen and carbon isotopic composition of pedogenic carbonates

doi:10.1016/j.palaeo.2010.09.003

	Plio-Pleistocene vegetation changes in the North China Plain: Magnetostratigraphy, oxygen and carbon isotopic composition of pedogenic carbonates
	Yao, Zhengquan 1,2; Xiao, Guoqiao 2,3; Wu, Haibin 4; Liu, Weiguo 2; Chen, Yukun 5
刊名	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
	2010-11-10
卷号	297 期号:2 页码:502-510
关键词	Magnetostratigraphy Paleosol Stable Carbon And Oxygen Isotopes C-3 And C-4 Plants Monsoon
ISSN号	0031-0182
DOI	10.1016/j.palaeo.2010.09.003
文献子类	Article
英文摘要	The Plio-Pleistocene history of C-4 plant biomass in northwestern China has been documented from the loess-soil sequences of the Loess Plateau region. However, how C-4 plants evolved in the warmer and low-elevation eastern China monsoon zone is still poorly known mainly because of the unavailability of well-dated geological records. In this study, a 203.6-m core of floodplain deposits was recovered from the North China Plain near Tianjin and dated magnetostratigraphically. The results define a chronosequence for the last 3.3 Ma. The late Quaternary portion of the core consists of fluvio-marine sediments while the rest of the section (3.3-0.6 Ma) contains abundant paleosols formed on the floodplain, as confirmed by soil micromorphological evidence. The stable carbon and oxygen isotopic composition of pedogenic carbonates was measured to document vegetation and climate changes. The results reveal mixed C-3 and C-4 vegetation with an estimated C-4 abundance of similar to 40-60% from similar to 3.1 to similar to 2.2 Ma, and a subsequent gradual decline to similar to 25% until similar to 0.6 Ma. This trend is consistent with the data from the loess-soil sequences further west on the Loess Plateau, suggesting they are regionally significant changes. The lowering of growing-season temperature and/or drier conditions induced by global cooling would explain this overall decline. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
WOS关键词	GLACIAL-INTERGLACIAL VARIATIONS ; LATE MIOCENE ; LOESS PLATEAU ; C-4 PHOTOSYNTHESIS ; ATMOSPHERIC CO2 ; EAST-ASIA ; TERRESTRIAL ECOSYSTEM ; ENVIRONMENTAL-CHANGE ; STABLE-ISOTOPES ; PLANT ABUNDANCE
WOS研究方向	Physical Geography ; Geology ; Paleontology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000284340500021
资助机构	National Basic Research Program of China (973 Program)(2010CB950200) ; National Basic Research Program of China (973 Program)(2010CB950200) ; National Science Foundation of China(40730104) ; National Science Foundation of China(40730104) ; Chinese Academy of Sciences(kzcx3-sw-139 ; Chinese Academy of Sciences(kzcx3-sw-139 ; Tianjin active fault surveying and seismic risk estimation project ; Tianjin active fault surveying and seismic risk estimation project ; kzcx2-yw-117) ; kzcx2-yw-117) ; National Basic Research Program of China (973 Program)(2010CB950200) ; National Basic Research Program of China (973 Program)(2010CB950200) ; National Science Foundation of China(40730104) ; National Science Foundation of China(40730104) ; Chinese Academy of Sciences(kzcx3-sw-139 ; Chinese Academy of Sciences(kzcx3-sw-139 ; Tianjin active fault surveying and seismic risk estimation project ; Tianjin active fault surveying and seismic risk estimation project ; kzcx2-yw-117) ; kzcx2-yw-117) ; National Basic Research Program of China (973 Program)(2010CB950200) ; National Basic Research Program of China (973 Program)(2010CB950200) ; National Science Foundation of China(40730104) ; National Science Foundation of China(40730104) ; Chinese Academy of Sciences(kzcx3-sw-139 ; Chinese Academy of Sciences(kzcx3-sw-139 ; Tianjin active fault surveying and seismic risk estimation project ; Tianjin active fault surveying and seismic risk estimation project ; kzcx2-yw-117) ; kzcx2-yw-117) ; National Basic Research Program of China (973 Program)(2010CB950200) ; National Basic Research Program of China (973 Program)(2010CB950200) ; National Science Foundation of China(40730104) ; National Science Foundation of China(40730104) ; Chinese Academy of Sciences(kzcx3-sw-139 ; Chinese Academy of Sciences(kzcx3-sw-139 ; Tianjin active fault surveying and seismic risk estimation project ; Tianjin active fault surveying and seismic risk estimation project ; kzcx2-yw-117) ; kzcx2-yw-117)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/73232]
专题	中国科学院地质与地球物理研究所
通讯作者	Yao, Zhengquan
作者单位	1.State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710075, Peoples R China 3.China Univ Geosci, Minist Educ, Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China 5.Earthquake Adm Tianjin Municipal, Tianjin 300201, Peoples R China
推荐引用方式 GB/T 7714	Yao, Zhengquan,Xiao, Guoqiao,Wu, Haibin,et al. Plio-Pleistocene vegetation changes in the North China Plain: Magnetostratigraphy, oxygen and carbon isotopic composition of pedogenic carbonates[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2010,297(2):502-510.
APA	Yao, Zhengquan,Xiao, Guoqiao,Wu, Haibin,Liu, Weiguo,&Chen, Yukun.(2010).Plio-Pleistocene vegetation changes in the North China Plain: Magnetostratigraphy, oxygen and carbon isotopic composition of pedogenic carbonates.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,297(2),502-510.
MLA	Yao, Zhengquan,et al."Plio-Pleistocene vegetation changes in the North China Plain: Magnetostratigraphy, oxygen and carbon isotopic composition of pedogenic carbonates".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 297.2(2010):502-510.