LavoiePareBergeron2006

Référence

Lavoie, M., Pare, D. and Bergeron, Y. (2006) Unusual effect of controlling aboveground competition by Ledum groenlandicumon black spruce (Picea mariana) in boreal forested peatland. Canadian Journal of Forest Research, 36(8):2058-2062.

Résumé

Poor growth of black spruce (Picea mariana (Mill.) BSP) has been associatedwith the presence of Ledum groenlandicum L. (Ledum) on some sitesin the eastern boreal forest in Canada. To increase black spruceproductivity on lowland sites, a study was carried out to test theeffect of mechanical control of Ledum (by clipping) on black sprucegrowth on forested peatland in northwestern Quebec. We comparedthe growth and foliar nutrient concentrations of advance-regenerationblack spruce seedlings with and without Ledum control. Contraryto our expectations, our results showed that 3-year control of abovegroundcompetition by Ledum decreased rather than increased black sprucegrowth and had no effect on foliar nutrient concentrations. Ledumgrows on a variety of site types; therefore, the mere presence ofthis species does not necessarily indicate that there will be aproblem with conifer regeneration (growth and germination). © 2006NRC.

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@ARTICLE { LavoiePareBergeron2006,
    AUTHOR = { Lavoie, M. and Pare, D. and Bergeron, Y. },
    TITLE = { Unusual effect of controlling aboveground competition by Ledum groenlandicumon black spruce (Picea mariana) in boreal forested peatland },
    JOURNAL = { Canadian Journal of Forest Research },
    YEAR = { 2006 },
    VOLUME = { 36 },
    PAGES = { 2058-2062 },
    NUMBER = { 8 },
    ABSTRACT = { Poor growth of black spruce (Picea mariana (Mill.) BSP) has been associatedwith the presence of Ledum groenlandicum L. (Ledum) on some sitesin the eastern boreal forest in Canada. To increase black spruceproductivity on lowland sites, a study was carried out to test theeffect of mechanical control of Ledum (by clipping) on black sprucegrowth on forested peatland in northwestern Quebec. We comparedthe growth and foliar nutrient concentrations of advance-regenerationblack spruce seedlings with and without Ledum control. Contraryto our expectations, our results showed that 3-year control of abovegroundcompetition by Ledum decreased rather than increased black sprucegrowth and had no effect on foliar nutrient concentrations. Ledumgrows on a variety of site types; therefore, the mere presence ofthis species does not necessarily indicate that there will be aproblem with conifer regeneration (growth and germination). © 2006NRC. },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.04 },
}

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