PrevostDumaisPothier2010

Référence

Prevost, M., Dumais, D. and Pothier, D. (2010) Growth and mortality following partial cutting in a trembling aspen - Conifer stand: Results after 10 years. Canadian Journal of Forest Research, 40(5):894-903. (Scopus )

Résumé

We present the effects, 10 years after treatment, of different cutting intensities (removal of 0%, 35%, 50%, 65%, and 100% of basal area (BA)) on the response of residual trees in a 60-year-old mixed aspen-conifer stand in Quebec, Canada. While decennial mortality reached 170 stems·ha<sup>-1</sup> under natural conditions (control, 24 m<sup>2</sup>·ha<sup>-1</sup> BA), the removal of mature trembling aspen (Populus tremuloides Michx.) trees reduced hardwood losses to 125, 105, and 0 stems·ha<sup>-1</sup>, respectively, in the 35%, 50%, and 65% cuttings, without affecting losses of coniferous species (≤25 stems·ha<sup>-1</sup>). The growth response of conifers was generally higher than that of broad-leaved species. For hardwoods, the decennial gains in merchantable BA decreased with respect to the control (3.2 m<sup>2</sup>·ha<sup>-1</sup>), to 1.2 m<sup>2</sup>·ha<sup>-1</sup> in the 35% cut and to 0.9 m<sup>2</sup>·ha<sup>-1</sup> in the 50% cut, but increased under the 65% cut (2.5 m<sup>2</sup>·ha<sup>-1</sup>). For conifers, gains were proportional to removal in partial cuts (2.6-4.9 m<sup>2</sup>·ha<sup>-1</sup>) and lower in the control (1.7 m<sup>2</sup>·ha<sup>-1</sup>). As a whole, our results suggest that partial cutting may be an effective means of increasing growth of the softwood proportion occupying the intermediate and suppressed strata in a mixed aspen-dominated stand.

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@ARTICLE { PrevostDumaisPothier2010,
    AUTHOR = { Prevost, M. and Dumais, D. and Pothier, D. },
    TITLE = { Growth and mortality following partial cutting in a trembling aspen - Conifer stand: Results after 10 years },
    JOURNAL = { Canadian Journal of Forest Research },
    YEAR = { 2010 },
    VOLUME = { 40 },
    PAGES = { 894-903 },
    NUMBER = { 5 },
    ABSTRACT = { We present the effects, 10 years after treatment, of different cutting intensities (removal of 0%, 35%, 50%, 65%, and 100% of basal area (BA)) on the response of residual trees in a 60-year-old mixed aspen-conifer stand in Quebec, Canada. While decennial mortality reached 170 stems·ha<sup>-1</sup> under natural conditions (control, 24 m<sup>2</sup>·ha<sup>-1</sup> BA), the removal of mature trembling aspen (Populus tremuloides Michx.) trees reduced hardwood losses to 125, 105, and 0 stems·ha<sup>-1</sup>, respectively, in the 35%, 50%, and 65% cuttings, without affecting losses of coniferous species (≤25 stems·ha<sup>-1</sup>). The growth response of conifers was generally higher than that of broad-leaved species. For hardwoods, the decennial gains in merchantable BA decreased with respect to the control (3.2 m<sup>2</sup>·ha<sup>-1</sup>), to 1.2 m<sup>2</sup>·ha<sup>-1</sup> in the 35% cut and to 0.9 m<sup>2</sup>·ha<sup>-1</sup> in the 50% cut, but increased under the 65% cut (2.5 m<sup>2</sup>·ha<sup>-1</sup>). For conifers, gains were proportional to removal in partial cuts (2.6-4.9 m<sup>2</sup>·ha<sup>-1</sup>) and lower in the control (1.7 m<sup>2</sup>·ha<sup>-1</sup>). As a whole, our results suggest that partial cutting may be an effective means of increasing growth of the softwood proportion occupying the intermediate and suppressed strata in a mixed aspen-dominated stand. },
    COMMENT = { Export Date: 27 May 2010 Source: Scopus CODEN: CJFRA doi: 10.1139/X10-036 },
    ISSN = { 00455067 (ISSN) },
    OWNER = { Luc },
    TIMESTAMP = { 2010.05.27 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-77952004568&partnerID=40&md5=9d0e1eaeb0cb52fad516377fcc75af73 },
}

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