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Impacts of wildfire on the permafrost in the boreal forests of Interior Alaska

Dates

Year
2002

Citation

Yoshikawa, Kenji, Bolton, William R., Romanovsky, Vladimir E., Fukuda, Masami, and Hinzman, Larry D., 2002, Impacts of wildfire on the permafrost in the boreal forests of Interior Alaska: Journal of Geophysical Research: Atmospheres, v. 107, no. D1, p. - 8148.

Summary

The impact to the permafrost during and after wildfire was studied using 11 boreal forest fire sites including two controlled burns. Heat transfer by conduction to the permafrost was not significant during fire. Immediately following fire, ground thermal conductivity may increase 10-fold and the surface albedo can decrease by 50% depending on the extent of burning of the surficial organic soil. The thickness of the remaining organic layer strongly affects permafrost degradation and aggradation. If the organic layer thickness was not reduced during the burn, then the active layer (the layer of soil above permafrost that annually freezes and thaws) did not change after the burn in spite of the surface albedo decrease. Any significant [...]

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  • LC MAP - Landscape Conservation Management and Analysis Portal
  • Northwest Boreal Landscape Conservation Cooperative

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Reference Item
NWBLCC20160627

Additional Information

Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.1029/2001JD000438
ISSN http://sciencebase.gov/vocab/identifierScheme 2156-2202

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