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Johannes Edvardsson

Johannes Edvardsson

Forskare

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

Författare

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

Summary, in Swedish

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 900e1350). Annual tree growth and sample replication of peatland pines reflect moisture variations and long-term climate variability. The importance of extending the TRW chronolo- gies 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.

Publiceringsår

2016-01-20

Språk

Engelska

Sidor

118-126

Publikation/Tidskrift/Serie

Quaternary Science Reviews

Volym

131

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Environmental Sciences
  • Climate Research

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0277-3791