6533b7dafe1ef96bd126edfc
RESEARCH PRODUCT
Timber Logging in Central Siberia is the Main Source for Recent Arctic Driftwood
Jan EsperFritz H. SchweingruberAlexander V. KirdyanovLena HellmannAnatoly N. NikolaevAnne VerstegeL. I. AgafonovOlga V. Churakova (Sidorova)Ulf BüntgenAnastasia A. KnorreWilly TegelDaniel NievergeltVladimir S. MyglanÓLafur Eggertssonsubject
010506 paleontologyGlobal and Planetary Changegeographygeography.geographical_feature_category010504 meteorology & atmospheric sciencesbiologyLoggingDrainage basinDriftwoodbiology.organism_classification01 natural sciencesArcticBorealClimatology550 Earth sciences & geologySea icePhysical geographyLarchEcology Evolution Behavior and SystematicsGeologyHolocene0105 earth and related environmental sciencesEarth-Surface Processesdescription
Abstract 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 dendro...
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-08-01 |