DOI: 10.1016/j.quascirev.2015.07.021
Scopus记录号: 2-s2.0-84939441802
论文题名: Holocene vegetation and climate dynamics of NE China based on the pollen record from Sihailongwan Maar Lake
作者: Stebich M. ; Rehfeld K. ; Schlütz F. ; Tarasov P.E. ; Liu J. ; Mingram J.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2015
卷: 124 起始页码: 275
结束页码: 289
语种: 英语
英文关键词: Biomes and climate reconstruction
; East Asian summer monsoon
; Holocene pollen
; Spectral analysis
Scopus关键词: Arid regions
; Atmospheric thermodynamics
; Climate change
; Frequency domain analysis
; Lakes
; Least squares approximations
; Moisture
; Power spectrum
; Spectrum analysis
; Vegetation
; Climate reconstruction
; East Asian summer monsoon
; Holocenes
; Laminated sediments
; Moisture conditions
; Palynological analysis
; Partial least squares regression
; Power spectra analysis
; Plants (botany)
; atmosphere-ocean coupling
; biome
; chronology
; climate variation
; Holocene
; least squares method
; paleoclimate
; paleoecology
; paleoenvironment
; palynology
; plant residue
; quantitative analysis
; radiocarbon dating
; reconstruction
; spectral analysis
; vegetation dynamics
; vegetation history
; China
; Jilin
; Lake Sihailongwan
; Pacific Ocean
英文摘要: High-resolution palynological analysis on annually laminated sediments of Sihailongwan Maar Lake (SHL) provides new insights into the Holocene vegetation and climate dynamics of NE China. The robust chronology of the presented record is based on varve counting and AMS radiocarbon dates from terrestrial plant macro-remains. In addition to the qualitative interpretation of the pollen data, we provide quantitative reconstructions of vegetation and climate based on the method of biomization and weighted averaging partial least squares regression (WA-PLS) technique, respectively. Power spectra were computed to investigate the frequency domain distribution of proxy signals and potential natural periodicities. Pollen assemblages, pollen-derived biome scores and climate variables as well as the cyclicity pattern indicate that NE China experienced significant changes in temperature and moisture conditions during the Holocene. Within the earliest phase of the Holocene, a large-scale reorganization of vegetation occurred, reflecting the reconstructed shift towards higher temperatures and precipitation values and the initial Holocene strengthening and northward expansion of the East Asian summer monsoon (EASM). Afterwards, summer temperatures remain at a high level, whereas the reconstructed precipitation shows an increasing trend until approximately 4000 cal. yr BP. Since 3500 cal. yr BP, temperature and precipitation values decline, indicating moderate cooling and weakening of the EASM. A distinct periodicity of 550-600 years and evidence of a Mid-Holocene transition from a temperature-triggered to a predominantly moisture-triggered climate regime are derived from the power spectra analysis. The results obtained from SHL are largely consistent with other palaeoenvironmental records from NE China, substantiating the regional nature of the reconstructed vegetation and climate patterns. However, the reconstructed climate changes contrast with the moisture evolution recorded in S China and the mid-latitude (semi-)arid regions of N China. Whereas a clear insolation-related trend of monsoon intensity over the Holocene is lacking from the SHL record, variations in the coupled atmosphere-Pacific Ocean system can largely explain the reconstructed changes in NE China. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59852
Appears in Collections: 过去全球变化的重建
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作者单位: Senckenberg Research Station, Quaternary Palaeontology Weimar, Am Jakobskirchhof 4, Weimar, Germany; Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Telegrafenberg A43, Potsdam, Germany; Lower Saxony Institute for Historical Coastal Research, Viktoriastr. 26/28, Wilhelmshaven, Germany; Institute of Geological Sciences, Palaeontology Section, Free University Berlin, Malteserstr. 74-100, Haus D, Berlin, Germany; Institute of Geology and Geophysics, Chinese Academy of Sciences, No. 19 Beitucheng West Road, Chaoyang District, Beijing, China; GFZ German Research Centre for Geosciences, Section 5.2 - Climate Dynamics and Landscape Evolution, Telegrafenberg C109, Potsdam, Germany
Recommended Citation:
Stebich M.,Rehfeld K.,Schlütz F.,et al. Holocene vegetation and climate dynamics of NE China based on the pollen record from Sihailongwan Maar Lake[J]. Quaternary Science Reviews,2015-01-01,124