Hydrological dynamics and fire history of the last 1300years in western Siberia reconstructed from a high-resolution, ombrotrophic peat archive

• Published in: Quaternary Research
• Main Authors: Lamentowicz, Mariusz, Słowiński, Michał, Marcisz, Katarzyna, Zielińska, Małgorzata, Kaliszan, Karolina, Lapshina, Elena, Gilbert, Daniel, Buttler, Alexandre, Fiałkiewicz-Kozieł, Barbara, Jassey, Vincent E.J., Laggoun-Défarge, Fatima, Kołaczek, Piotr
• Other Authors: Laboratory of Wetland Ecology and Monitoring, Uniwersytet im. Adama Mickiewicza w Poznaniu = Adam Mickiewicz University in Poznań (UAM), Department of Biogeography and Paleoecology, German Research Centre for Geosciences - Helmholtz-Centre Potsdam (GFZ), Department of Environmental Resources and Geohazards, Institute of Geography and Spatial Organization, Polish Academy of Sciences, Yugra State University, Laboratoire Chrono-environnement (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC), Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Ecole Polytechnique Fédérale de Lausanne (EPFL), Institut des Sciences de la Terre d'Orléans - UMR7327 (ISTO), Bureau de Recherches Géologiques et Minières (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), RE-FIRE SCIEX project 12.286 and grant PSPB-013/2010 from Switzerland through the Swiss Contribution to the enlarged European Union, as well as by grant 2011/01/D/ST10/02579 from the National Centre of Science (NCN)., International Network for Terrestrial Research and Monitoring in the Arctic INTERACT that funded the project: “Functioning of Siberian mire ecosystems and their response to climate changes” Project acronym: CliMireSiber (PI: Fatima Laggoun-Defarge).
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2015
• Subjects:  Testate amoebae; Pollen; Macrofossils; Transfer function; Peat; Siberia; Charcoal; [SDU]Sciences of the Universe [physics]; [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces; environment; Arctic; khanty
• Online Access: https://insu.hal.science/insu-01240109; https://insu.hal.science/insu-01240109/document; https://insu.hal.science/insu-01240109/file/1_Mukhrino_Lamentowicz_etal.pdf; https://doi.org/10.1016/j.yqres.2015.09.002

International audience Siberian peatlands provide records of past changes in the continental climate of Eurasia. We analyzed a core from Mukhrino mire in western Siberia to reconstruct environmental change in this region over the last 1300 years. The pollen analysis revealed little variation of local pine-birch forests. A testate amoebae transfer function was used to generate a quantitative water-table reconstruction; pollen, plant macrofossils, and charcoal were analyzed to reconstruct changes in vegetation and fire activity. The study revealed that Mukhrino mire was wet until the Little Ice Age (LIA), when drought was recorded. Dry conditions during the LIA are consistent with other studies from central and eastern Europe, and with the pattern of carbon accumulation across the Northern Hemisphere. A significant increase in fire activity between ca. AD 1975 and 1990 may be associated with the development of the nearby city of Khanty-Mansiysk, as well as with the prevailing positive Arctic Oscillation.