Similarity of vegetation dynamics during interglacial periods

被引:63
作者
Cheddadi, R [1 ]
de Beaulieu, JL
Jouzel, J
Andrieu-Ponel, V
Laurent, JM
Reille, M
Raynaud, D
Bar-Hen, A
机构
[1] CNRS, Inst Sci Evolut, UMR 5554, F-34090 Montpellier, France
[2] Fac Sci & Tech St Jerome, CNRS, Inst Mediterraneen Ecol & Paleoecol, UMR 6116, F-13397 Marseille, France
[3] CNRS, Comis Nacl Energia Atom, Lab Sci Climat & Environm, F-91198 Gif Sur Yvette, France
[4] CNRS, Lab Glaciol & Geophys Environm, F-38402 St Martin Dheres, France
[5] Univ Aix Marseille 3, Lab Analyse, Fac Sci & Tech St Jerome, F-13397 Marseille, France
关键词
climatic cycles; interglacials; pollen records;
D O I
10.1073/pnas.0501752102
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The Velay sequence (France) provides a unique, continuous, palynological record spanning the last four climatic cycles. A pollen-based reconstruction of temperature and precipitation displays marked climatic cycles. An analysis of the climate and vegetation changes during the interglacial periods reveals comparable features and identical major vegetation successions. Although Marine Isotope Stage (MIS) 11.3 and the Holocene had similar earth precessional variations, their correspondence in terms of vegetation dynamics is low. MIS 9.5, 7.5, and especially 5.5 display closer correlation to the Holocene than MIS 11.3. Ecological factors, such as the distribution and composition of glacial refugia or postglacial migration patterns, may explain these discrepancies. Comparison of ecosystem dynamics during the past five interglacials suggests that vegetation development in the current interglacial has no analogue from the past 500,000 years.
引用
收藏
页码:13939 / 13943
页数:5
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