Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

Dan Hammarlund

Dan Hammarlund

Professor

Dan Hammarlund

Holocene treeline history and climate change across northern Eurasia

Författare

  • GM MacDonald
  • AA Velichko
  • CV Kremenetski
  • OK Borisova
  • AA Goleva
  • AA Andreev
  • LC Cwynar
  • RT Riding
  • SL Forman
  • TWD Edwards
  • R Aravena
  • Dan Hammarlund
  • JM Szeicz
  • VN Gattaulin

Summary, in English

Radiocarbon-dated macrofossils are used to document Holocene treeline history across northern Russia (including Siberia), Boreal forest development in this region commenced by 10,000 yr B.P, Over most of Russia, forest advanced to or near the current arctic coastline between 9000 and 7000 yr B.P. and retreated to its present position by between 4000 and 3000 yr B.P. Forest establishment and retreat was roughly synchronous across most of northern Russia, Treeline advance on the Kola Peninsula, however, appears to have occurred later than in other regions. During the period of maximum forest extension, the mean July temperatures along the northern coastline of Russia may have been 2.5 degrees to 7.0 degrees C warmer than modern. The development of forest and expansion of treeline likely reflects a number of complimentary environmental conditions, including heightened summer insolation, the demise of Eurasian ice sheets, reduced sea-ice cover, greater continentality with eustatically lower sea level, and extreme Arctic penetration of warm North Atlantic waters. The late Holocene retreat of Eurasian treeline coincides with declining summer insolation, cooling arctic waters, and neoglaciation, (C) 2000 University of Washington.

Avdelning/ar

  • Kvartärgeologi

Publiceringsår

2000

Språk

Engelska

Sidor

302-311

Publikation/Tidskrift/Serie

Quaternary Research

Volym

53

Issue

3

Dokumenttyp

Artikel i tidskrift

Förlag

Academic Press

Ämne

  • Geology

Nyckelord

  • treeline
  • climate change
  • Holocene
  • Arctic
  • Russia
  • Siberia
  • macrofossils

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0033-5894