CoteLupiGagnonEtAl2014

Référence

Cote, D., Lupi, C., Gagnon, R., Lord, D., Morin, H. (2014) Growth dynamics of successive post-fire cohorts of black spruce: Is site potential reduced? Forestry Chronicle, 90(1):96-104.

Résumé

Black spruce is one of the main commercial species in boreal forests of North America. It usually forms large and single-species natural stands in eastern Canada, yet in recent years, parts of this area have undergone forest cover regression and the conversion of closed-crown forests to open lichen woodlands, partly due to successive disturbances and regeneration accidents. We studied two successive post-fire cohorts growing at the same site, for which a clear forest cover regression trajectory has already been demonstrated, to assess possible changes in the site potential. The Wilcoxon nonparametric test found significant differences in mean diameter and height growth between cohorts, compared by cambial age, generally with higher mean values for the most recent cohort. There were no indications of growth reduction between the previous and the current cohorts. This paper sets the ball rolling for a discussion on the pertinence of reforestation in this type of recently established open formation, where growth potential (as expressed by diameter and height) seems, at least, maintained.

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@ARTICLE { CoteLupiGagnonEtAl2014,
    AUTHOR = { Cote, D. and Lupi, C. and Gagnon, R. and Lord, D. and Morin, H. },
    TITLE = { Growth dynamics of successive post-fire cohorts of black spruce: Is site potential reduced? },
    JOURNAL = { Forestry Chronicle },
    YEAR = { 2014 },
    VOLUME = { 90 },
    PAGES = { 96-104 },
    NUMBER = { 1 },
    MONTH = { JAN-FEB },
    ABSTRACT = { Black spruce is one of the main commercial species in boreal forests of North America. It usually forms large and single-species natural stands in eastern Canada, yet in recent years, parts of this area have undergone forest cover regression and the conversion of closed-crown forests to open lichen woodlands, partly due to successive disturbances and regeneration accidents. We studied two successive post-fire cohorts growing at the same site, for which a clear forest cover regression trajectory has already been demonstrated, to assess possible changes in the site potential. The Wilcoxon nonparametric test found significant differences in mean diameter and height growth between cohorts, compared by cambial age, generally with higher mean values for the most recent cohort. There were no indications of growth reduction between the previous and the current cohorts. This paper sets the ball rolling for a discussion on the pertinence of reforestation in this type of recently established open formation, where growth potential (as expressed by diameter and height) seems, at least, maintained. },
    ADDRESS = { C/O CANADIAN ECOLOGY CENTRE, PO BOX 430, 6905 HWY 17 W, MATTAWA, ONTARIO P0H 1V0, CANADA },
    AFFILIATION = { Lupi, C (Reprint Author), Minist Ressources Nat, Direct Affaires Reg Saguenay Lac St Jean, 3950 Blvd Harvey, Jonquiere, PQ G7H 8L6, Canada. Cote, D., Univ Quebec Chicoutimi, Dept Sci Fondamentales, Lab Ecol Vegetale \& Anim, Chicoutimi, PQ G7H 2B1, Canada. Lupi, C.; Gagnon, R.; Lord, D.; Morin, H., Minist Ressources Nat, Direct Affaires Reg Saguenay Lac St Jean, Jonquiere, PQ G7H 8L6, Canada. },
    AUTHOR-EMAIL = { carlo.lupi@uqac.ca },
    DOC-DELIVERY-NUMBER = { AA5LC },
    DOI = { 10.5558/tfc2014-015 },
    EISSN = { 1499-9315 },
    FUNDING-ACKNOWLEDGEMENT = { Commercial Boreal Forest Research Consortium (UQAC); Saguenay-Lac-Saint-Jean regional division of the Natural Resources Ministry (MRN) },
    FUNDING-TEXT = { We'd like to thank Boris Dufour, Francois Gionest, Frank Grenon, Valerie Levasseur, Patrick Nadeau and Germain Savard for their help with field and lab work. We also thank Mathieu Cusson and Denis Walsh for statistical advice and Pierre-Yves Plourde and Pascal Tremblay. We thank A. Garside for checking the English text. Funding was provided by the Commercial Boreal Forest Research Consortium (UQAC) and Saguenay-Lac-Saint-Jean regional division of the Natural Resources Ministry (MRN). },
    ISSN = { 0015-7546 },
    JOURNAL-ISO = { For. Chron. },
    KEYWORDS = { open lichen woodland; closed-crown forest; black spruce; successive disturbance; reforestation },
    KEYWORDS-PLUS = { REGENERATION FOLLOWING FIRE; CROWN BOREAL FOREST; EASTERN CANADA; PICEA-MARIANA; ARTIFICIAL REGENERATION; LICHEN WOODLANDS; JUVENILE GROWTH; MOSS FORESTS; QUEBEC; NITROGEN },
    LANGUAGE = { English },
    NUMBER-OF-CITED-REFERENCES = { 59 },
    OWNER = { nafon9 },
    PUBLISHER = { CANADIAN INST FORESTRY },
    RESEARCH-AREAS = { Forestry },
    TIMES-CITED = { 0 },
    TIMESTAMP = { 2014.03.20 },
    TYPE = { Article },
    WEB-OF-SCIENCE-CATEGORIES = { Forestry },
}

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