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Wetland succession in a permafrost collapse; interactions between fire and thermokarst

Dates

Year
2008

Citation

Myers-Smith, I. H., Harden, J. W., Wilmking, M., Fuller, C. C., McGuire, A. D., and Chapin, F. S., III, 2008, Wetland succession in a permafrost collapse; interactions between fire and thermokarst: Biogeosciences, v. 5, no. 5; 5, p. 1273-1286.

Summary

To determine the influence of fire and thermokarst in a boreal landscape, we investigated peat cores within and adjacent to a permafrost collapse feature on the Tanana River Floodplain of Interior Alaska. Radioisotope dating, diatom assemblages, plant macrofossils, charcoal fragments, and carbon and nitrogen content of the peat profile indicate approximately 600 years of vegetation succession with a transition from a terrestrial forest to a sedge-dominated wetland over 100 years ago, and to a Sphagnum-dominated peatland in approximately 1970. The shift from sedge to Sphagnum, and a decrease in the detrended tree-ring width index of black spruce trees adjacent to the collapse coincided with an increase in the growing season temperature [...]

Contacts

Tags

Provenance

Data source
File Processing
File Process
Type
End Note
Reference Item
4001 records
Reference File
nwblcc-20160306.xml

Additional Information

Identifiers

Type Scheme Key
ISSN http://sciencebase.gov/vocab/identifierScheme 17264170; 17264189

Citation Extension

journalBiogeosciences
parts
typeNotes
value3117
typePages
value1273-1286
typeVolume
value5
typeNumber
value5; 5
citationTypeJournal Article

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