globalchange  > 气候减缓与适应
DOI: 10.1016/j.quascirev.2018.07.032
Scopus记录号: 2-s2.0-85050808167
论文题名:
Woodlands and steppes: Pleistocene vegetation in Yakutia's most continental part recorded in the Batagay permafrost sequence
作者: Ashastina K.; Kuzmina S.; Rudaya N.; Troeva E.; Schoch W.H.; Römermann C.; Reinecke J.; Otte V.; Savvinov G.; Wesche K.; Kienast F.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2018
卷: 196
起始页码: 38
结束页码: 61
语种: 英语
英文关键词: Beringia ; Eemian ; Ground squirrel nest ; Invertebrates ; Last cold stage ; Modern analogues ; Palaeo-vegetation ; Plant macrofossils ; Pollen
Scopus关键词: Animals ; Biological materials preservation ; Charcoal ; Forestry ; Permafrost ; Beringia ; Eemian ; Ground squirrels ; Invertebrates ; Modern analogues ; Plant macrofossils ; Pollen ; Vegetation ; Beringia ; Eemian ; environmental history ; fossil assemblage ; Holocene ; invertebrate ; Last Glacial Maximum ; Last Interglacial ; marine isotope stage ; meadow ; nest ; paleobotany ; permafrost ; Pleistocene ; pollen ; rodent ; steppe ; vegetation history ; woodland ; Russian Federation ; Sakha ; Siberia ; Invertebrata ; Larix ; Spermophilus ; Urtica dioica
英文摘要: Based on fossil organism remains including plant macrofossils, charcoal, pollen, and invertebrates preserved in syngenetic deposits of the Batagay permafrost sequence in the Siberian Yana Highlands, we reconstructed the environmental history during marine isotope stages (MIS) 6 to 2. Two fossil assemblages, exceptionally rich in plant remains, allowed for a detailed description of the palaeo-vegetation during two climate extremes of the Late Pleistocene, the onset of the last glacial maximum (LGM) and the last interglacial. In addition, altogether 41 assemblages were used to outline the vegetation history since the penultimate cold stage of MIS 6. Accordingly, meadow steppes analogue to modern communities of the phytosociological order Festucetalia lenensis formed the primary vegetation during the Saalian and Weichselian cold stages. Cold-resistant tundra-steppe communities (Carici rupestris-Kobresietea bellardii) as they occur above the treeline today were, in contrast to more northern locations, mostly lacking. During the last interglacial, open coniferous woodland similar to modern larch taiga was the primary vegetation at the site. Abundant charcoal indicates wildfire events during the last interglacial. Zoogenic disturbances of the local vegetation were indicated by the presence of ruderal plants, especially by abundant Urtica dioica, suggesting that the area was an interglacial refugium for large herbivores. Meadow steppes, which formed the primary vegetation during cold stages and provided potentially suitable pastures for herbivores, were a significant constituent of the plant cover in the Yana Highlands also under the full warm stage conditions of the last interglacial. Consequently, meadow steppes occurred in the Yana Highlands during the entire investigated timespan from MIS 6 to MIS 2 documenting a remarkable environmental stability. Thus, the proportion of meadow steppe vegetation merely shifted in response to the respectively prevailing climatic conditions. Their persistence indicates low precipitation and a relatively warm growing season throughout and beyond the late Pleistocene. The studied fossil record also proves that modern steppe occurrences in the Yana Highlands did not establish as late as in the Holocene but instead are relicts of a formerly continuous steppe belt extending from Central Siberia to Northeast Yakutia during the Pleistocene. The persistence of plants and invertebrates characteristic of meadow steppe vegetation in interior Yakutia throughout the late Quaternary indicates climatic continuity and documents the suitability of this region as a refugium also for other organisms of the Pleistocene mammoth steppe including the iconic large herbivores. © 2018 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112077
Appears in Collections:气候减缓与适应

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作者单位: Senckenberg Research Institute and Natural History Museum, Research Station of Quaternary Palaeontology, Am Jakobskirchhof 4, Weimar, 99423, Germany; Friedrich Schiller University Jena, Institute for Ecology and Evolution, Philosophenweg 16, Jena, 07743, Germany; Palaeontological Institute, Russian Academy of Sciences, Ul. Profsoyuznaya 123, Moscow, 117868, Russian Federation; Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, Department of Periglacial Research, Telegraphenberg A43, Potsdam, 14401, Germany; Institute for Biological Problems of Cryolithozone, Siberian Branch of RAS, 41, Lenina Ave, Yakutsk, 677980, Russian Federation; Laboratory for Ancient Wood Research, Unterrütistrasse 17, Langnau, CH-8135, Switzerland; Senckenberg Museum of Natural History, Am Museum 1, Görlitz, 02826, Germany; Federal State Autonomous Educational Institution of Higher Education “M. K. Ammosov North-Eastern Federal University”, 43 Lenin Prospekt, Yakutsk, 677980, Russian Federation; Kazan State University, Department of Bioresources and Aquaculture, Ul. Kremlyovskaya 18, Kazan, 420000, Russian Federation; University of Potsdam, Institute of Earth and Environmental Science, Karl-Liebknecht-Straße 24–25, Golm, Potsdam, 14476, Germany; International Institute Zittau, Technische Universität Dresden, Markt 23, Zittau, 02763, Germany; German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Pl. 5E, Leipzig, 04103, Germany; Ice Age Museum, Pr. Mira 119, Moscow, 129223, Russian Federation

Recommended Citation:
Ashastina K.,Kuzmina S.,Rudaya N.,et al. Woodlands and steppes: Pleistocene vegetation in Yakutia's most continental part recorded in the Batagay permafrost sequence[J]. Quaternary Science Reviews,2018-01-01,196
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