Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern
Help
 

GeoTreesearch


Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

(1.7 MB)

Title: Fossil organic matter characteristics in permafrost deposits of the northeast Siberian Arctic

Author: Schirrmeister, Lutz; Grosse, Guido; Wetterich, Sebastian; Overduin, Pier Paul; Straub, Jens; Schuur, Edward A.G.; Hubberton, Hans-Wolfgang.

Date: 2011

Source: Journal of Geophysical Research. 116: G00M02. 16 p. doi:10.1029/2011JG001647.

Publication Series: Journal/Magazine Article (JRNL)

Description: Permafrost deposits constitute a large organic carbon pool highly vulnerable to degradation and potential carbon release due to global warming. Permafrost sections along coastal and river bank exposures in NE Siberia were studied for organic matter (OM) characteristics and ice content. OM stored in Quaternary permafrost grew, accumulated, froze, partly decomposed, and refroze under different periglacial environments, reflected in specific biogeochemical and cryolithological features. OM in permafrost is represented by twigs, leaves, peat, grass roots, and plant detritus. The vertical distribution of total organic carbon (TOC) in exposures varies from 0.1 wt % of the dry sediment in fluvial deposits to 45 wt % in Holocene peats. Based on TOC data and updated information on bulk densities, we estimate average organic carbon inventories for ten different stratigraphic units in northeast Siberia, ranging from 7.2 kg C m-3 for Early Weichselian fluvial deposits, to 33.2 kg C m-3 for Middle Weichselian Ice Complex deposits, to 74.7 kg C m-3 for Holocene peaty deposits. The resulting landscape average is likely about 25% lower than previously published permafrost carbon inventories.

Keywords: permafrost thaw, climate change, carbon

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

XML: View XML

Citation:


Schirrmeister, Lutz; Grosse, Guido; Wetterich, Sebastian; Overduin, Pier Paul; Straub, Jens; Schuur, Edward A.G.; Hubberton, Hans-Wolfgang. 2011. Fossil organic matter characteristics in permafrost deposits of the northeast Siberian Arctic. Journal of Geophysical Research. 116: G00M02. 16 p. doi:10.1029/2011JG001647.

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.