Forest fires and vegetation during the Holocene in central Yakutia, eastern Siberia |
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Authors: | Fumitaka Katamura Masami Fukuda Nikolai P Bosikov Roman V Desyatkin |
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Institution: | (1) Graduate School of Agriculture, Kyoto Prefectural University, 1-5 Shimogamo Hangi-cho, Sakyo-ku, Kyoto 606-8522, Japan;(2) International Arctic Research Center, University of Alaska, Fairbanks, AK, USA;(3) Permafrost Institute, Siberian Division, Russian Academy of Science, Yakutsk, Russia;(4) Institute for Biological Problems of Cryolithozone, Siberian Division, Russian Academy of Science, Yakutsk, Russia |
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Abstract: | In order to investigate the relationship between vegetation change and fire history in the Siberian boreal forest, fossil
pollen and charcoal from two lakes in central Yakutia, eastern Siberia, were analyzed. The vegetation change inferred from
the pollen analysis was similar to that found in previous research in the region. Open larch forest covered this region during
the late Glacial and early Holocene periods. Later, during the mid-Holocene, Scots pine expanded its range. The low levels
of charcoal in the lake deposits represent surface forest fires, suggesting that the present-day surface fire regime has been
taking place since at least 6,500 calibrated years before the present (cal yr BP) and that stand-replacing fire has not occurred
during the Holocene. Larch and Scots pine forests, which are characterized by surface fire regimes, have been predominant
since the early Holocene. |
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Keywords: | Charcoal Eastern Siberia Forest fire history Pollen Vegetation history |
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