DOI: 10.1016/j.quascirev.2013.03.006
Scopus记录号: 2-s2.0-84877802486
论文题名: Spatio-temporal patterns in Lateglacial and Holocene vegetation and climate of Finnmark, northernmost Europe
作者: Huntley B. ; Long A.J. ; Allen J.R.M.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2013
卷: 70 起始页码: 158
结束页码: 175
语种: 英语
英文关键词: Barents Sea
; North Cape Current
; Periodicity
; Pinus-Betula ecotone
; Treeline
Scopus关键词: Barents sea
; North Cape Current
; Periodicity
; Pinus-Betula ecotone
; Treeline
; Forestry
; Lakes
; Submarine geology
; Vegetation
; climate variation
; Hypsithermal
; Last Glacial
; paleobotany
; spatiotemporal analysis
; treeline
; vegetation history
; vegetation index
; Arctic Ocean
; Barents Sea
; Europe
; Finnmark
; New Zealand
; North Cape
; North Island
; Northland
; Norway
英文摘要: Precisely-dated records of palaeovegetation and reconstructed palaeoclimate are presented from three lakes in northernmost Finnmark. The lakes lie adjacent to the southern shore of the Barents Sea and are located along a west-east transect. The three records are used to reconstruct spatial patterns in regional vegetation and climatic history since 13,900calyr BP. Longer-term shifts in treeline position and in the position of the Pinus-Betula ecotone are recorded. In addition, especially during the regional Holocene thermal maximum, the latter exhibited strong periodic fluctuations. The number and strength of these fluctuations that were recorded at each of the three sites differed systematically, with fewer and weaker fluctuations seen at the easternmost site, in particular. The patterns revealed are used to test the hypothesis that variations in the strength of the North Cape Current have been of primary importance as the proximal driver of climatic variability in the region since deglaciation. The results provide strong support for this hypothesis during the Holocene, the strong periodic fluctuations during the regional Holocene thermal maximum in particular being consistent with the proposed mechanism. During the Lateglacial and earliest Holocene the patterns are less clear, but nonetheless also consistent with the proposed mechanism. Further work on precisely-dated marine sediment cores will be necessary to understand the factors leading to the periodic and longer-term variations in strength of the North Cape Current. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60628
Appears in Collections: 过去全球变化的重建
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作者单位: School of Biological and Biomedical Sciences, Durham University, South Road, Durham DH1 3LE, United Kingdom; Department of Geography, Durham University, South Road, Durham DH1 3LE, United Kingdom
Recommended Citation:
Huntley B.,Long A.J.,Allen J.R.M.. Spatio-temporal patterns in Lateglacial and Holocene vegetation and climate of Finnmark, northernmost Europe[J]. Quaternary Science Reviews,2013-01-01,70