GasserMessierBeaudetEtAl2010

Référence

Gasser, D., Messier, C., Beaudet, M., Lechowicz, M.J. (2010) Sugar maple and yellow birch regeneration in response to canopy opening, liming and vegetation control in a temperate deciduous forest of Quebec. Forest Ecology and Management, 259(10):2006-2014. (Scopus )

Résumé

We examined how the density, growth and survival of sugar maple (Acer saccharum Marsh.) and yellow birch (Betula alleghaniensis Britton) regeneration are influenced by gap size, soil nutrient availability and understory vegetation. We used a factorial combination of (1) three gap sizes (small: <100 m<sup>2</sup>; medium: 100-300 m<sup>2</sup>; large: ~1000 m<sup>2</sup>); (2) presence/absence of liming (92% CaCO<sub>3</sub> at 500 kg ha<sup>-1</sup>, 1st year post-harvest); and (3) presence/absence of vegetation control (weeding twice a year; 1st to 3rd year post-harvest). We monitored height increment and survival of 1500 seedlings and saplings of both species from the 3rd to the 6th year post-harvest, and assessed density 6 years post-harvest. Both species exhibited a complex set of density, growth and survival responses across the combination of treatments. Compared to sugar maple, yellow birch had an overall lower density, greater growth, and similar survival rate; the two species attained maximum values in different gap size for density, and similar gap size for growth and survival. Liming had very little or no effect on the species. The growth of yellow birch was slightly but significantly greater when understory vegetation was controlled, particularly in medium and large gaps. These results suggest that a variety of canopy gap sizes can provide the right combination of understory conditions for regenerating these two functionally different tree species. © 2010 Elsevier B.V. All rights reserved.

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@ARTICLE { GasserMessierBeaudetEtAl2010,
    AUTHOR = { Gasser, D. and Messier, C. and Beaudet, M. and Lechowicz, M.J. },
    TITLE = { Sugar maple and yellow birch regeneration in response to canopy opening, liming and vegetation control in a temperate deciduous forest of Quebec },
    JOURNAL = { Forest Ecology and Management },
    YEAR = { 2010 },
    VOLUME = { 259 },
    PAGES = { 2006-2014 },
    NUMBER = { 10 },
    ABSTRACT = { We examined how the density, growth and survival of sugar maple (Acer saccharum Marsh.) and yellow birch (Betula alleghaniensis Britton) regeneration are influenced by gap size, soil nutrient availability and understory vegetation. We used a factorial combination of (1) three gap sizes (small: <100 m<sup>2</sup>; medium: 100-300 m<sup>2</sup>; large: ~1000 m<sup>2</sup>); (2) presence/absence of liming (92% CaCO<sub>3</sub> at 500 kg ha<sup>-1</sup>, 1st year post-harvest); and (3) presence/absence of vegetation control (weeding twice a year; 1st to 3rd year post-harvest). We monitored height increment and survival of 1500 seedlings and saplings of both species from the 3rd to the 6th year post-harvest, and assessed density 6 years post-harvest. Both species exhibited a complex set of density, growth and survival responses across the combination of treatments. Compared to sugar maple, yellow birch had an overall lower density, greater growth, and similar survival rate; the two species attained maximum values in different gap size for density, and similar gap size for growth and survival. Liming had very little or no effect on the species. The growth of yellow birch was slightly but significantly greater when understory vegetation was controlled, particularly in medium and large gaps. These results suggest that a variety of canopy gap sizes can provide the right combination of understory conditions for regenerating these two functionally different tree species. © 2010 Elsevier B.V. All rights reserved. },
    ADDRESS = { Centre d'étude de la forêt (CEF), Department of Biology, McGill University, 1205 Docteur Penfield, Montréal, Que. H3A 1B1, Canada },
    COMMENT = { Export Date: 11 June 2010 Source: Scopus CODEN: FECMD doi: 10.1016/j.foreco.2010.02.011 },
    ISSN = { 03781127 (ISSN) },
    KEYWORDS = { Calcium, Forest floor disturbance, Light availability, Regeneration, Shade tolerance, Soil nutrient availability, Soil pH, Vegetation cover, Forest floors, Light availability, Shade tolerance, Soil nutrients, Soil pH, Vegetation cover, Calcium, Calcium alloys, Floors, Harvesting, Nutrients, Soils, Sugar (sucrose), Vegetation, Reforestation, calcium, deciduous forest, forest canopy, forest floor, gap dynamics, growth rate, light availability, liming, nutrient availability, pH, regeneration, shade tolerance, soil nutrient, survival, understory, vegetation cover, Alloy, Calcium, Floors, Harvesting, Nutrients, Ph, Plants, Reforestation, Soil, Sugar, Canada, Quebec [Canada], Acer, Acer saccharum, Betula alleghaniensis },
    OWNER = { Luc },
    TIMESTAMP = { 2010.06.11 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-77950061702&partnerID=40&md5=9cd4f621bd1db788c027fef862426995 },
}

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