LegarePareBergeron2004

Référence

Legare, S., Pare, D. and Bergeron, Y. (2004) The responses of black spruce growth to an increased proportion ofaspen in mixed stands. Canadian Journal of Forest Research, 34(2):405-416.

Résumé

In the southeastern boreal forest of Canada, the presence of mixedstands of black spruce (Picea mariana (Mill.) BSP) and tremblingaspen (Populus tremuloides Michx.) growing in similar abiotic conditionsoffers the opportunity to study the influence of aspen on standvolume and spruce growth. A regression analysis performed on fielddata from the ministe?re des Ressources naturelles du Que?bec showeda significant relationship between the relative basal area of aspen(aspen relative basal area was determined by the ratio of aspenbasal area to total basal area of the stand) and the total standmerchantable volume after accounting for stand density. However,the relationship between total black spruce volume and relativebasal area of aspen was not significant, implying that the volumegain was, in fact, aspen fibre. The positive effects of aspen onblack spruce DBH and height were only present when the proportionof aspen in the stand ranged between 0% and 41% of the total standbasal area. These results suggest that aspen uses a different nichethan black spruce. Furthermore, the significant increase in blackspruce dominant height along the aspen gradient suggests that aspenenhances soil fertility by its influence on nutrient availability.The management of mixed stands, which make up an important proportionon the landscape, offers an example as to how commercial managementof the forest can be in agreement with ecosystem management.

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@ARTICLE { LegarePareBergeron2004,
    AUTHOR = { Legare, S. and Pare, D. and Bergeron, Y. },
    TITLE = { The responses of black spruce growth to an increased proportion ofaspen in mixed stands },
    JOURNAL = { Canadian Journal of Forest Research },
    YEAR = { 2004 },
    VOLUME = { 34 },
    PAGES = { 405-416 },
    NUMBER = { 2 },
    ABSTRACT = { In the southeastern boreal forest of Canada, the presence of mixedstands of black spruce (Picea mariana (Mill.) BSP) and tremblingaspen (Populus tremuloides Michx.) growing in similar abiotic conditionsoffers the opportunity to study the influence of aspen on standvolume and spruce growth. A regression analysis performed on fielddata from the ministe?re des Ressources naturelles du Que?bec showeda significant relationship between the relative basal area of aspen(aspen relative basal area was determined by the ratio of aspenbasal area to total basal area of the stand) and the total standmerchantable volume after accounting for stand density. However,the relationship between total black spruce volume and relativebasal area of aspen was not significant, implying that the volumegain was, in fact, aspen fibre. The positive effects of aspen onblack spruce DBH and height were only present when the proportionof aspen in the stand ranged between 0% and 41% of the total standbasal area. These results suggest that aspen uses a different nichethan black spruce. Furthermore, the significant increase in blackspruce dominant height along the aspen gradient suggests that aspenenhances soil fertility by its influence on nutrient availability.The management of mixed stands, which make up an important proportionon the landscape, offers an example as to how commercial managementof the forest can be in agreement with ecosystem management. },
    KEYWORDS = { Picea mariana Populus tremuloides },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.04 },
}

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