Parish19991347

Référence

Parish, R., Antos, J.A. and Fortin, M.-J. (1999) Stand development in an old-growth subalpine forest in southern interior British Columbia. Canadian Journal of Forest Research, 29(9):1347-1356. (Scopus )

Résumé

The dynamics of an old-growth Engelmann spruce (Picea engelmannii Parry) - subalpine fir (Abies lasiocarpa (Hook.) Nutt.) forest were investigated using stand-history reconstruction. Age and size structures, tree location, and radial increment patterns were used to link establishment and growth to disturbances. The spatial distribution of trees was used to infer patterns of establishment and mortality. The forest originated in the 1650s, probably after fire. Initial establishment took almost 80 years, after which fir continued to recruit effectively, but spruce did not. The tree-ring record showed no evidence of widespread disturbance during the first 200 years, but from about 1855 to 1900 a major period of canopy mortality caused by bark beetles released suppressed trees and provided opportunities for establishment and rapid growth of seedlings of both species. Most current canopy trees established or released during this period of disturbance; thus, many canopy trees are fairly young in this old-growth forest and canopy turnover is high. A short period of disturbance (1927-1932) caused by the balsam bark beetle (Dryocoetes confusus Swaine) resulted in release of suppressed trees but did not promote seedling establishment. At the time of study (1994), the stand was undergoing another minor disturbance caused by this insect. Bark beetles appear to be of fundamental importance in controlling the dynamics of spruce-fir forests during the long intervals that often occur between fires in cool, wet climates.

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@ARTICLE { Parish19991347,
    AUTHOR = { Parish, R. and Antos, J.A. and Fortin, M.-J. },
    TITLE = { Stand development in an old-growth subalpine forest in southern interior British Columbia },
    JOURNAL = { Canadian Journal of Forest Research },
    YEAR = { 1999 },
    VOLUME = { 29 },
    NUMBER = { 9 },
    PAGES = { 1347-1356 },
    NOTE = { cited By 63 },
    ABSTRACT = { The dynamics of an old-growth Engelmann spruce (Picea engelmannii Parry) - subalpine fir (Abies lasiocarpa (Hook.) Nutt.) forest were investigated using stand-history reconstruction. Age and size structures, tree location, and radial increment patterns were used to link establishment and growth to disturbances. The spatial distribution of trees was used to infer patterns of establishment and mortality. The forest originated in the 1650s, probably after fire. Initial establishment took almost 80 years, after which fir continued to recruit effectively, but spruce did not. The tree-ring record showed no evidence of widespread disturbance during the first 200 years, but from about 1855 to 1900 a major period of canopy mortality caused by bark beetles released suppressed trees and provided opportunities for establishment and rapid growth of seedlings of both species. Most current canopy trees established or released during this period of disturbance; thus, many canopy trees are fairly young in this old-growth forest and canopy turnover is high. A short period of disturbance (1927-1932) caused by the balsam bark beetle (Dryocoetes confusus Swaine) resulted in release of suppressed trees but did not promote seedling establishment. At the time of study (1994), the stand was undergoing another minor disturbance caused by this insect. Bark beetles appear to be of fundamental importance in controlling the dynamics of spruce-fir forests during the long intervals that often occur between fires in cool, wet climates. },
    AFFILIATION = { Research Branch, B.C. Ministry of Forests, Station Provincial Government, P.O. Box 9519, Victoria, BC V8W 9C2, Canada; Department of Biology, University of Victoria, Victoria, BC V8W 3N5, Canada; Dépt. de Géographie, Université de Montréal, Centre-ville Branch, P.O. Box 6128, Montréal, Que. H3C 3J7, Canada },
    DOCUMENT_TYPE = { Article },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-0033305862&partnerID=40&md5=943a2ae687e1ee6fd73fcb64a2ef1cdf },
}

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