Stepwise expansions of C-4 biomass and enhanced seasonal precipitation and regional aridity during the Quaternary on the southern Chinese Loess Plateau | |
Sun, JM (Sun, Jimin)[1]; Lu, TY (Lu, Tongyan)[1]; Zhang, ZQ (Zhang, Zhenqing)[2]; Wang, X (Wang, Xu)[1]; Liu, WG (Liu, Weiguo)[3] | |
2012-02-21 | |
发表期刊 | QUATERNARY SCIENCE REVIEWS |
卷号 | 34页码:57-65 |
文章类型 | 期刊论文 |
摘要 | The expansion of C-4 plants is one of the most prominent vegetation changes in the global ecosystem during the Cenozoic Era. Although C-4 plant expansions in the latest Miocene have been widely reported, factors driving the expansions are still in debate, and the details of vegetation changes during the Quaternary have not been well studied. Here we present high-resolution carbon isotope time series of both organic matter and bulk carbonates, covering the past 2.58 Ma, derived from the loess-soil successions on the southern Chinese Loess Plateau. The organic matter delta C-13 values indicate stepwise C-4 plant expansions initiated at similar to 1.6 and at similar to 0.43 Ma, respectively. We conclude that such tectonic time scale C-4 plant expansions are controlled by enhanced seasonality of precipitation (relatively more precipitation in the warm growing season) as well as regional aridity, and this long-term fluctuation superimposes on the orbital scale variations of C-4 plants, while the latter appears phase-locked with cyclical changes of summer monsoon circulations. |
关键词 | Organic Matter Carbon Isotope Carbonate Isotope Aeolian Deposits Quaternary Paleovegetation |
DOI | 10.1016/j.quascirev.2011.12.007 |
收录类别 | SCI ; EI |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/10194 |
专题 | 加速器质谱中心 |
通讯作者 | Sun, JM (Sun, Jimin)[1] |
作者单位 | 1.Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, P. O. Box 9825, Beijing 100029, China; 2.Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012, China; 3.Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, China |
推荐引用方式 GB/T 7714 | Sun, JM ,Lu, TY ,Zhang, ZQ ,et al. Stepwise expansions of C-4 biomass and enhanced seasonal precipitation and regional aridity during the Quaternary on the southern Chinese Loess Plateau[J]. QUATERNARY SCIENCE REVIEWS,2012,34:57-65. |
APA | Sun, JM ,Lu, TY ,Zhang, ZQ ,Wang, X ,&Liu, WG .(2012).Stepwise expansions of C-4 biomass and enhanced seasonal precipitation and regional aridity during the Quaternary on the southern Chinese Loess Plateau.QUATERNARY SCIENCE REVIEWS,34,57-65. |
MLA | Sun, JM ,et al."Stepwise expansions of C-4 biomass and enhanced seasonal precipitation and regional aridity during the Quaternary on the southern Chinese Loess Plateau".QUATERNARY SCIENCE REVIEWS 34(2012):57-65. |
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Stepwise expansions (1788KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 请求全文 |
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