Timber logging in central Siberia is the main source for recent Arctic driftwood

Тип публикации: статья из журнала

Год издания: 2015

Идентификатор DOI: 10.1657/AAAR0014-063

Ключевые слова: boreal forest, catchment, dendrochronology, discharge, Holocene, logging (timber), sea ice, spatiotemporal analysis, Angara River, Arctic, Faroe Islands, Russian Federation, Siberia, Svalbard, Svalbard and Jan Mayen, Larix, Picea, Pinus sylvestris

Аннотация: Recent findings indicated spruce from North America and larch from eastern Siberia to be the dominating tree species of Arctic driftwood throughout the Holocene. However, changes in source region forest and river characteristics, as well as ocean current dynamics and sea ice extent likely influence its spatiotemporal composition. Here, we present 2556 driftwood samples from Greenland, Iceland, Svalbard, and the Faroe Islands. A total of 498 out of 969 Pinus sylvestris ring width series were cross-dated at the catchment level against a network of Eurasian boreal reference chronologies. The central Siberian Yenisei and Angara Rivers account for 91% of all dated pines, with their outermost rings dating between 1804 and 1999. Intensified logging and timber rafting along the Yenisei and Angara in the mid-20th century, together with high discharge rates, explain the vast quantity of material from this region and its temporal peak ca. 1960. Based on the combined application of wood-anatomical and dendrochronological techniques on a well-replicated data set, our results question the assumption that Arctic driftwood mainly consists of millennial-old larch and spruce. Nevertheless, data from other species and regions, together with longer boreal reference chronologies, are needed for generating reliable proxy archives at the interface of marine and terrestrial environments.

Ссылки на полный текст

Издание

Журнал: ARCTIC ANTARCTIC AND ALPINE RESEARCH

Выпуск журнала: Vol. 47, Is. 3

Номера страниц: 449-460

ISSN журнала: 15230430

Место издания: BOULDER

Издатель: INST ARCTIC ALPINE RES

Авторы

  • Hellmann L. (Oeschger Centre for Climate Change Research)
  • Agafonov L. (Institute of Plant and Animal Ecology, UDRAS)
  • Nikolaev A.N. (Melnikov Permafrost Institute)
  • Knorre A.A. (Stolby National Wildlife Nature Reserve)
  • Myglan V.S. (Siberian Federal University)
  • Sidorova O.C. (ETH Zurich, Institute of Terrestrial Ecosystems)
  • Schweingruber F.H. (Swiss Federal Research Institute, WSL)
  • Nievergelt D. (Swiss Federal Research Institute, WSL)
  • Verstege A. (Swiss Federal Research Institute, WSL)
  • Buntgen U. (Global Change Research Centre, ASCR)
  • Tegel W. (Institute for Forest Sciences, University of Freiburg)
  • Kirdyanov A.V. (V.N. Sukachev Institute of Forest, SBRAS)
  • Eggertsson O. (Iceland Forest Service)
  • Esper J. (Johannes Gutenberg University)

Вхождение в базы данных

Информация о публикациях загружается с сайта службы поддержки публикационной активности СФУ. Сообщите, если заметили неточности.

Вы можете отметить интересные фрагменты текста, которые будут доступны по уникальной ссылке в адресной строке браузера.