globalchange  > 过去全球变化的重建
DOI: 10.1371/journal.pone.0121532
论文题名:
Changes in the Radiocarbon Reservoir Age in Lake Xingyun, Southwestern China during the Holocene
作者: Aifeng Zhou; Yuxin He; Duo Wu; Xiaonan Zhang; Can Zhang; Zhonghui Liu; Junqing Yu
刊名: PLOS ONE
ISSN: 1932-6203
出版年: 2015
发表日期: 2015-3-27
卷: 10, 期:3
语种: 英语
英文关键词: Lakes ; Radioactive carbon dating ; Carbonates ; Paleoclimatology ; Sediment ; Surface water ; Paleobotany ; Holocene epoch
英文摘要: Chronology is a necessary component of paleoclimatology. Radiocarbon dating plays a central role in determining the ages of geological samples younger than ca. 50 ka BP. However, there are many limitations for its application, including radiocarbon reservoir effects, which may cause incorrect chronology in many lakes. Here we demonstrate temporal changes in the radiocarbon reservoir age of Lake Xingyun, Southwestern China, where radiocarbon ages based on bulk organic matter have been reported in previous studies. Our new radiocarbon ages, determined from terrestrial plant macrofossils suggest that the radiocarbon reservoir age changed from 960 to 2200 years during the last 8500 cal a BP years. These changes to the reservoir effect were associated with inputs from either pre-aged organic carbon or 14C-depleted hard water in Lake Xingyun caused by hydrological change in the lake system. The radiocarbon reservoir age may in return be a good indicator for the carbon source in lake ecosystems and depositional environment.
URL: http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0121532&type=printable
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/20186
Appears in Collections:过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响

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作者单位: MOE Key Laboratory of Western China’s Environmental Systems, Collaborative Innovation Centre for Arid Environments and Climate Change, Lanzhou University, Lanzhou, China;Department of Earth Sciences, Zhejiang University, Hangzhou, China;Department of Earth Sciences, The University of Hong Kong, Hong Kong Special Administrative Region, China;MOE Key Laboratory of Western China’s Environmental Systems, Collaborative Innovation Centre for Arid Environments and Climate Change, Lanzhou University, Lanzhou, China;MOE Key Laboratory of Western China’s Environmental Systems, Collaborative Innovation Centre for Arid Environments and Climate Change, Lanzhou University, Lanzhou, China;MOE Key Laboratory of Western China’s Environmental Systems, Collaborative Innovation Centre for Arid Environments and Climate Change, Lanzhou University, Lanzhou, China;Department of Earth Sciences, The University of Hong Kong, Hong Kong Special Administrative Region, China;Qinghai-Institute of Salt Lakes, China Academy of Sciences, Xining, China

Recommended Citation:
Aifeng Zhou,Yuxin He,Duo Wu,et al. Changes in the Radiocarbon Reservoir Age in Lake Xingyun, Southwestern China during the Holocene[J]. PLOS ONE,2015-01-01,10(3)
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