Synchronous growth releases in peatland pine chronologies as an indicator for regional climate dynamics-a multi-site study including estonia, Belarus and Sweden

Research output: Contribution to journalArticle

Abstract

Fourteen tree-ring chronologies developed from 788 peatland Scots pines sampled at sites in Estonia, Belarus and Sweden were compared for common growth trends and possible links to regional climate dynamics. Several synchronous growth release events were detected, especially during the 1910s, 1930s, and around 1970 and 1990, indicating that hydrological shifts and associated tree growth responses have been governed by similar forcing mechanisms, at least during the 20th century. In general, the best agreements were observed between the tree populations from Estonia and Belarus, but synchronous growth changes could also be detected between the Swedish and Estonian material. Trends detected in single tree-ring chronologies may be linked to local peatland management or land-use changes, whereas common variations detected at multiple sites are more likely linked to hydrological changes in the peatlands associated with regional climate dynamics. Understanding the links between climate and processes that involve peatland hydrology and vegetation responses is important since peatland ecosystems are key players in the global carbon cycle.

Details

Authors
  • Aleksei Potapov
  • Sandra Toomik
  • Maxim Yermokhin
  • Johannes Edvardsson
  • Ando Lilleleht
  • Andres Kiviste
  • Tanel Kaart
  • Sandra Metslaid
  • Arvo Järvet
  • Maris Hordo
Organisations
External organisations
  • Estonian University of Life Sciences - EMÜ
  • University of Tartu
  • National Academy of Sciences of Belarus (NASB)
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Climate Research

Keywords

  • Dendrochronology, Growth release, Hydrological variability, Peatlands, Pinus sylvestris, Scots pine
Original languageEnglish
Article number1097
JournalForests
Volume10
Issue number12
Publication statusPublished - 2019 Dec 2
Publication categoryResearch
Peer-reviewedYes