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Recovery of forest-floor vegetation after a wildfire in a Picea mariana forest

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Title: Recovery of forest-floor vegetation after a wildfire in a Picea mariana forest
Authors: Tsuyuzaki, Shiro Browse this author →KAKEN DB
Narita, Kenji Browse this author
Sawada, Yuki Browse this author
Harada, Koichiro Browse this author →KAKEN DB
Keywords: Burned ground surface
Deciduous trees
Mosses
Revegetation
Slope gradient
Issue Date: Nov-2013
Publisher: Springer Japan KK
Journal Title: Ecological research
Volume: 28
Issue: 6
Start Page: 1061
End Page: 1068
Publisher DOI: 10.1007/s11284-013-1087-0
Abstract: We aimed to detect the trajectories of forest-floor vegetation recovery in a Picea mariana forest after a wildfire. Since fire severity in boreal forests is expected to increase because of climate changes, we investigated the effects of ground-surface burn severity, a surrogate for overall fire severity, on the revegetation. We annually monitored vegetation < 1.3 m high in 80 1 m x 1 m quadrats at Poker Flat Research Range (65A degrees 12'N, 147A degrees 46'W, 650 m a.s.l.) near Fairbanks, interior Alaska, where a large wildfire occurred in the summer of 2004, from 2005 to 2009. Sphagnum mosses were predominant on the unburned ground surface. In total, 66 % of the ground surface was burned completely by the wildfire. Total plant cover increased from 48 % in 2005 to 83 % in 2009. The increase was derived mostly by the vegetative reproduction of shrubs on the unburned surface and by the immigration of non-Sphagnum mosses and deciduous trees on the burned surface. Deciduous trees, which had not been established before the wildfire, colonized only on the burned surface and grew faster than P. mariana. Although species richness decreased with increasing slope gradient, these deciduous trees became established even on steep slopes. The wildfire that completely burned the ground surface distorted the revegetation, particularly on steep slopes. The restoration of the Sphagnum surface was a prerequisite after the severe wildfire occurred, although the Sphagnum cover had difficulty returning to predominance in the short term.
Rights: The final publication is available at link.springer.com.
Type: article (author version)
URI: http://hdl.handle.net/2115/57303
Appears in Collections:環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 露崎 史朗

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