BescondFentonBergeron2011

Reference

Bescond, H., Fenton, N.J., Bergeron, Y. (2011) Partial harvests in the boreal forest: Response of the understoryvegetation five years after harvest. Forestry Chronicle, 87(1):86-98. (Scopus )

Abstract

In the eastern boreal forest of Canada long fire cycles allow fora significant portion of stands to become old growth. These old-growthboreal forest stands are subjected to secondary disturbances thatcreate uneven structure, which supports a variety of types of organisms.In order to maintain the proportion of stands with uneven structureon the landscape, partial cuts have been suggested as a managementtechnique that could create or maintain these uneven structures.This study compares the effects of partial and low-retention harvestsand un-harvested control on understory plants in four sites fiveyears after harvest. The relative abundance of species was examinedby a habitat group. While richness did not vary among treatments,increasing severity of harvest favoured pioneer species that preferdisturbed mineral soil and high light levels. Sites with thickerorganic layers that were harvested in the winter were significantlyless impacted by both partial and lowretention harvest. Canopy openingalone had little impact in the three most northern sites. As old-growthblack spruce forests are open by nature, this suggests that soilperturbation is a bigger driver of community change after harvestthan proportion of canopy removed for this forest type.

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@ARTICLE { BescondFentonBergeron2011,
    AUTHOR = { Bescond, H. and Fenton, N.J. and Bergeron, Y. },
    TITLE = { Partial harvests in the boreal forest: Response of the understoryvegetation five years after harvest },
    JOURNAL = { Forestry Chronicle },
    YEAR = { 2011 },
    VOLUME = { 87 },
    PAGES = { 86-98 },
    NUMBER = { 1 },
    ABSTRACT = { In the eastern boreal forest of Canada long fire cycles allow fora significant portion of stands to become old growth. These old-growthboreal forest stands are subjected to secondary disturbances thatcreate uneven structure, which supports a variety of types of organisms.In order to maintain the proportion of stands with uneven structureon the landscape, partial cuts have been suggested as a managementtechnique that could create or maintain these uneven structures.This study compares the effects of partial and low-retention harvestsand un-harvested control on understory plants in four sites fiveyears after harvest. The relative abundance of species was examinedby a habitat group. While richness did not vary among treatments,increasing severity of harvest favoured pioneer species that preferdisturbed mineral soil and high light levels. Sites with thickerorganic layers that were harvested in the winter were significantlyless impacted by both partial and lowretention harvest. Canopy openingalone had little impact in the three most northern sites. As old-growthblack spruce forests are open by nature, this suggests that soilperturbation is a bigger driver of community change after harvestthan proportion of canopy removed for this forest type. },
    COMMENT = { Export Date: 4 March 2011Source: ScopusCODEN: FRCRA },
    ISSN = { 00157546 (ISSN) },
    KEYWORDS = { Harvest, Picea mariana, Quebec, Structural retention, Sustainableforest management, Understory, Variable retention, Vegetation },
    OWNER = { Luc },
    TIMESTAMP = { 2011.03.04 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-79951696705&partnerID=40&md5=decf6c20e7751fcde2c213c211c0a8b4 },
}

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