PaquetteFontaineMessierEtAl2010

Référence

Paquette, A., Fontaine, B., Messier, C. and Brisson, J. (2010) Homogeneous light in shade-house experiment overestimates carbon gains in tree seedlings. Journal of Horticulture and Forestry, 2(6):117-121. (URL )

Résumé

We set up a shade-house experiment with Norway maple growing at two light intensities typical of a disturbed and undisturbed forest canopy from either a homogeneous or a dynamic regime that mimics sunflecks. We show that although horticultural-grade shade-cloths can be finely tuned to provide daily averages of any light intensity, they do not appropriately mimic natural forest understories which are characterized by dynamic light environments composed of intense but short direct light events interspaced with prolonged period of low diffuse light. The results suggest that replicating the dynamic light environment of forests could be very important in experiments aimed at identifying the traits responsible for invasiveness in exotic species in forest understories, such as Norway maple in North America.

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@ARTICLE { PaquetteFontaineMessierEtAl2010,
    AUTHOR = { Paquette, A. and Fontaine, B. and Messier, C. and Brisson, J. },
    TITLE = { Homogeneous light in shade-house experiment overestimates carbon gains in tree seedlings },
    JOURNAL = { Journal of Horticulture and Forestry },
    YEAR = { 2010 },
    VOLUME = { 2 },
    PAGES = { 117-121 },
    NUMBER = { 6 },
    ABSTRACT = { We set up a shade-house experiment with Norway maple growing at two light intensities typical of a disturbed and undisturbed forest canopy from either a homogeneous or a dynamic regime that mimics sunflecks. We show that although horticultural-grade shade-cloths can be finely tuned to provide daily averages of any light intensity, they do not appropriately mimic natural forest understories which are characterized by dynamic light environments composed of intense but short direct light events interspaced with prolonged period of low diffuse light. The results suggest that replicating the dynamic light environment of forests could be very important in experiments aimed at identifying the traits responsible for invasiveness in exotic species in forest understories, such as Norway maple in North America. },
    OWNER = { Luc },
    TIMESTAMP = { 2012.08.07 },
    URL = { http://www.academicjournals.org/jhf/abstracts/abstracts/abstracts2010/Jul/Paquette%20et%20al.htm },
}

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