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Phytolith records of flourishing early Holocene Pooideae linked to an 8.2 ka cold event in subtropical China

文献类型：期刊论文

作者Zuo, Xinxin4,5; Lu, Houyuan1,6,7; Li, Zhen2; Song, Bing3; Xu, Deke1,6; Dai, Jinqi4,5
刊名ELEMENTA-SCIENCE OF THE ANTHROPOCENE
出版日期2020
卷号8期号:1页码:14
关键词Response Poaceae Asian monsoon Palaeo-vegetation Phytolith Holocene
ISSN号2325-1026
DOI10.1525/elementa.077
英文摘要The grass subfamily Pooideae originated in a temperate niche during the late Cretaceous; it is the largest Poaceae subfamily, consisting of almost 4,000 species, which are distributed worldwide. Pooideae responses to climate changes at different time scales, and different ecological zones are thus important in understanding Poaceae evolutionary processes and their relationship with climate change. In the study described in this article, we reconstructed Pooideae variability during the early Holocene, as inferred by a phytolith sequence from the Lower Yangtze in subtropical China. The phytolith assemblage was marked by three increases in Pooideae phytoliths, dated to ca 8.4-8.0, 7.8-7.6, and 7.4-7.2 ka BP (before present, 1950 AD), with each representing pronounced increases in Pooideae extent and distribution. All these increases were within age ranges that agreed well with the timing of weak Asian Monsoon events, at 8.2, 7.7, and 7.3 ka BP. The first Pooideae flourishing period in subtropical China was the most significant, lasting for approximately four centuries and being characterized by a double peak, which equated with an event at 8.2 ka. This suggested that cold and/or dry conditions-which occurred over a period of several hundred years and were linked to weakening of the Asian monsoon-probably caused Pooideae to flourish in the Lower Yangtze region. Comparison of two diagnostic trapezoid phytolith types-namely wavy and wavy narrow-which showed different changes between ca 8.4 and 8.0 ka BP, suggested that they responded differently to the climate change represented by the 8.2 ka event. Our phytolith records have provided not only new data clarifying the detailed Pooideae response to the 8.2 ka event but also a reliable index for past cold climates in subtropical China.
WOS关键词YANGTZE-RIVER DELTA ; EAST-ASIAN MONSOON ; ANNUALLY-LAMINATED STALAGMITES ; HIGH-RESOLUTION ; CLIMATE CHANGES ; ENVIRONMENTAL-CHANGES ; POLLEN RECORD ; EARLY MIDHOLOCENE ; SUMMER MONSOON ; STABLE-ISOTOPE
资助项目National Natural Science Foundation of China[41771241] ; National Natural Science Foundation of China[42077407] ; National Natural Science Foundation of China[41830322] ; Innovation Research Team Fund of Fujian Normal University[IRTL1705]
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000615210600019
出版者UNIV CALIFORNIA PRESS
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovation Research Team Fund of Fujian Normal University ; Innovation Research Team Fund of Fujian Normal University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovation Research Team Fund of Fujian Normal University ; Innovation Research Team Fund of Fujian Normal University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovation Research Team Fund of Fujian Normal University ; Innovation Research Team Fund of Fujian Normal University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Innovation Research Team Fund of Fujian Normal University ; Innovation Research Team Fund of Fujian Normal University
源URL[http://ir.iggcas.ac.cn/handle/132A11/100052]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Zuo, Xinxin
作者单位1.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China
2.Univ British Columbia, Dept Earth Ocean & Atmospher Sci, Vancouver, BC, Canada
3.Chinese Acad Sci, Nanjing Inst Geog & Limnol, Nanjing, Peoples R China
4.Fujian Normal Univ, Minist Sci & Technol & Fujian Prov, State Key Lab Subtrop Mt Ecol, Fuzhou, Peoples R China
5.Fujian Normal Univ, Sch Geog Sci, Fuzhou, Peoples R China
6.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China
7.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Zuo, Xinxin,Lu, Houyuan,Li, Zhen,et al. Phytolith records of flourishing early Holocene Pooideae linked to an 8.2 ka cold event in subtropical China[J]. ELEMENTA-SCIENCE OF THE ANTHROPOCENE,2020,8(1):14.
APA Zuo, Xinxin,Lu, Houyuan,Li, Zhen,Song, Bing,Xu, Deke,&Dai, Jinqi.(2020).Phytolith records of flourishing early Holocene Pooideae linked to an 8.2 ka cold event in subtropical China.ELEMENTA-SCIENCE OF THE ANTHROPOCENE,8(1),14.
MLA Zuo, Xinxin,et al."Phytolith records of flourishing early Holocene Pooideae linked to an 8.2 ka cold event in subtropical China".ELEMENTA-SCIENCE OF THE ANTHROPOCENE 8.1(2020):14.

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来源：地质与地球物理研究所

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