globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2016.11.034
论文题名:
Climate variability and lake ecosystem responses in western Scandinavia (Norway) during the last Millennium
作者: Zawiska I.; Luoto T.P.; Nevalainen L.; Tylmann W.; Jensen T.C.; Obremska M.; Słowiński M.; Woszczyk M.; Schartau A.K.; Walseng B.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2017
卷: 466
起始页码: 231
结束页码: 239
语种: 英语
英文关键词: Chironomids ; Cladocera ; Little Ice Age ; North Atlantic Oscillation ; Scandinavia ; Temperature reconstruction
英文摘要: This paper provides a high-resolution temperature reconstruction for the last Millennium from Lake Atnsjøen, SE Norway (61°52'31″N, 10°10'37″E). The sedimentary record reveals strong influence of the large-scale global climate patterns on the local climate in southern part of Eastern Norway. We reconstructed mean July air temperature using Chironomidae-based transfer function and fossil Chironomidae assemblages. The reconstruction was supported by a selection of climate-sensitive geochemical and paleoecological sedimentary proxies of terrestrial and aquatic origin, including Cladocera, pollen and macrofossils. Presented results revealed that summer temperatures were 1–2 °C warmer than the mean Millennial temperatures during the 11th, 13th, 15th and 20th centuries and 1–2 °C lower during the 12th, 14th, 17th–18th centuries. A persistent cold period, the Little Ice Age (LIA), occurred between 1550 and 1800 CE, was interrupted by a short warming at 1650 CE. The recognized regional climate fluctuations during the last Millennium affected the lake and its catchment, of which the strongest impact was caused by the LIA cooling. During the LIA the catchment vegetation was impacted by climate deterioration and the lake productivity reached its lowest level during the last Millennium. The current temperature reconstruction is in agreement with a previous continental scale temperature reconstruction for Europe. From obtained results it emerges that during the LIA the climate of western Scandinavia has been dictated by the atmospheric patterns originating from the North Atlantic. © 2016 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68009
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作者单位: Polish Academy of Sciences, Department of Geoecology and Climatology, Warsaw, Poland; University of Jyväskylä, Department of Biological and Environmental Science, Jyväskylä, Finland; University of Gdańsk, Department of Geomorphology and Quaternary Geology, Gdańsk, Poland; Norwegian Institute for Nature Research, Oslo, Norway; Polish Academy of Sciences, Institute of Geological Sciences, Research Centre in Warsaw, Poland; Polish Academy of Sciences, Department of Environmental Resources and Geohazards, Toruń, Poland; Adam Mickiewicz University, Department of Quaternary Geology and Palaeogeography, Poznań, Poland

Recommended Citation:
Zawiska I.,Luoto T.P.,Nevalainen L.,et al. Climate variability and lake ecosystem responses in western Scandinavia (Norway) during the last Millennium[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2017-01-01,466
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