globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2017.04.008
Scopus记录号: 2-s2.0-85017561982
论文题名:
Holocene high-resolution quantitative summer temperature reconstruction based on subfossil chironomids from the southeast margin of the Qinghai-Tibetan Plateau
作者: Zhang E.; Chang J.; Cao Y.; Sun W.; Shulmeister J.; Tang H.; Langdon P.G.; Yang X.; Shen J.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2017
卷: 165
起始页码: 1
结束页码: 12
语种: 英语
Scopus关键词: Atmospheric temperature ; Atmospheric thermodynamics ; Incident solar radiation ; Solar energy ; Solar radiation ; Asian summer monsoons ; Centennial scale variability ; Insolation forcing ; Qinghai-Tibetan plateau ; Statistical reconstruction ; Surrounding regions ; Temperature reconstruction ; Temporal resolution ; Climate change ; Bacillariophyta ; Chironomidae
英文摘要: This paper reports the first quantitative summer (mean July) temperature reconstruction based on subfossil chironomids from the southeast margin of the Qinghai-Tibetan Plateau (QTP) covering the end of the last deglaciation and the entire Holocene, spanning 11,800 cal yr BP to the present. The record is based on 223 chironomid samples throughout a 927 cm sediment core providing a temporal resolution of ∼50 years per sample. We validate the record by applying several statistical reconstruction diagnostics and comparing with pollen and diatom records from the same sediment core. The record suggests the summer temperature varies by ∼2.5 °C across the entire period. A generally warmer period occurred between c.8500 and c.6000 cal yr BP and a cooling trend was initiated from c.5500 cal yr BP. The overall pattern broadly matches the summer insolation at 30°N and the Asian Summer Monsoon records from the surrounding regions suggesting that summer temperatures from the southeast margin of the QTP respond to insolation forcing and monsoon driven variability on a multi-millennial time scale. Modifications of this overall trend are observed on the finer temporal resolution and we suggest that solar activity could be an important mechanism driving the centennial-scale variability. It may have a strengthened effect in the late Holocene when the monsoon influence weakened. Further detailed investigation is needed to disentangle these effects on the climate change over the highlands of southwestern China. © 2017 Elsevier Ltd
资助项目: We thank X.Y. Xiao, Y.L. Li, X Chen, E.F. Liu, J.J. Wang, and Y. Wang (Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences) for field assistance. This research was supported by the Program of Global Change and Mitigation (2016YFA0600502), the National Natural Science Foundation of China (No. 41572337). We thank Dr Dayou Zhai and the other anonymous reviewer for providing detailed comments on the manuscript.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59227
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作者单位: State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China; School of Earth and Environmental Sciences, The University of Queensland, St Lucia, Brisbane, Qld, Australia; College of Resources and Environmental Science, South-Central University for Nationalities, Wuhan, China; Research Centre of Hydrobiology, Jinan University, Guangzhou, China; Geography and Environment, University of Southampton, Southampton, United Kingdom

Recommended Citation:
Zhang E.,Chang J.,Cao Y.,et al. Holocene high-resolution quantitative summer temperature reconstruction based on subfossil chironomids from the southeast margin of the Qinghai-Tibetan Plateau[J]. Quaternary Science Reviews,2017-01-01,165
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