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Johannes Edvardsson

Johannes Edvardsson

Researcher

Johannes Edvardsson

Recent advances in long-term climate and moisture reconstructions from the Baltic region: Exploring the potential for a new multi- millennial tree-ring chronology

Author

  • Johannes Edvardsson
  • Christophe Corona
  • Jonas Mazeika
  • Rutile Pukiene
  • Markus Stoffel

Summary, in English

This study presents the first results from an ongoing initiative to develop a multi-millennial Baltic tree-ring width (TRW) chronology consisting of 12 floating records from subfossil Scots pines (Pinus sylvestris L.) extracted from three Lithuanian peat-mining areas. The floating series have been complemented with absolutely dated TRW chronologies which were obtained from living trees growing in unmanaged and unexploited peatland areas adjacent to each of the above study sites. The subfossil material has been dated by radiocarbon and shows a temporal spread over the last 6000 years, with assemblages of trees during the Holocene Thermal Maximum (HTM; 8000-4000 BP) and the onset of the Medieval Warm Period (MWP, AD 900-1350). Annual tree growth and sample replication of peatland pines reflect moisture variations and long-term climate variability. The importance of extending the TRW chronologies should not therefore be underestimated as (1) climate records of comparable length and resolution do not exist for the Baltic region, but also as (2) a result of a widespread lack of detailed moisture proxies spanning several millennia. Our data clearly show that a 6000-yr, continuous pine chronology from the Baltic region is a realistic objective, and would doubtlessly fill a major geographic gap in an ecologically sensitive region located at the interface between the temperate and boreal vegetation zones.

Publishing year

2016-01-20

Language

English

Pages

118-126

Publication/Series

Quaternary Science Reviews

Volume

131

Document type

Journal article

Publisher

Elsevier

Topic

  • Environmental Sciences
  • Climate Research

Status

Published

ISBN/ISSN/Other

  • ISSN: 0277-3791