PowerRaymondPrevostEtAl2019
Référence
Power, H., Raymond, P., Prévost, M., Roy, V., Berninger, F. (2019) Basal area and diameter growth in high-graded eastern temperate mixedwood forests: The influence of acceptable growing stock, species, competition and climate. Forestry, 92(5):659-669. (Scopus 
)
Résumé
Harvesting practices in temperate mixedwoods of eastern North America have a history of diameter-limit cuts, which have often resulted in degraded residual stands. In this study, we examined the factors influencing stand basal area (BA) and tree diameter growth in previously high-graded mixedwood forests, to understand which stands are more likely to recover from high-grading. Over 15 years, we monitored tree growth, recruitment and stem quality of 532 sample plots that were located in high-graded stands of Quebec's mixedwood forest. We found that diameter growth rates were positively correlated with precipitation-related variables for balsam fir (Abies balsamea) and for yellow birch (Betulla alleghaniensis) but opposing trends for temperature-related variables were found. Conversely to balsam fir, yellow birch growth was positively correlated to temperature variables. Our results also show that BA growth was greater for plots with a larger acceptable growing stock (AGS: Trees with potential sawlog production) and that the increase in AGS was greater for plots with larger amount of conifer BA. These result highlights the importance to maintain a proportion of conifer trees in these mixed stands. Moreover, the significant effect of asymmetric competition in our study underscores the relevance of considering the spatial distribution when choosing crop trees. © 2019 Institute of Chartered Foresters. All rights reserved.
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@ARTICLE { PowerRaymondPrevostEtAl2019,
AUTHOR = { Power, H. and Raymond, P. and Prévost, M. and Roy, V. and Berninger, F. },
JOURNAL = { Forestry },
TITLE = { Basal area and diameter growth in high-graded eastern temperate mixedwood forests: The influence of acceptable growing stock, species, competition and climate },
YEAR = { 2019 },
NOTE = { cited By 1 },
NUMBER = { 5 },
PAGES = { 659-669 },
VOLUME = { 92 },
ABSTRACT = { Harvesting practices in temperate mixedwoods of eastern North America have a history of diameter-limit cuts, which have often resulted in degraded residual stands. In this study, we examined the factors influencing stand basal area (BA) and tree diameter growth in previously high-graded mixedwood forests, to understand which stands are more likely to recover from high-grading. Over 15 years, we monitored tree growth, recruitment and stem quality of 532 sample plots that were located in high-graded stands of Quebec's mixedwood forest. We found that diameter growth rates were positively correlated with precipitation-related variables for balsam fir (Abies balsamea) and for yellow birch (Betulla alleghaniensis) but opposing trends for temperature-related variables were found. Conversely to balsam fir, yellow birch growth was positively correlated to temperature variables. Our results also show that BA growth was greater for plots with a larger acceptable growing stock (AGS: Trees with potential sawlog production) and that the increase in AGS was greater for plots with larger amount of conifer BA. These result highlights the importance to maintain a proportion of conifer trees in these mixed stands. Moreover, the significant effect of asymmetric competition in our study underscores the relevance of considering the spatial distribution when choosing crop trees. © 2019 Institute of Chartered Foresters. All rights reserved. },
AFFILIATION = { Direction de la Recherche Forestière, Ministère des Forêts, de la Faune et des Parcs du Québec, Québec, QC G1P3W8, Canada; Centre Canadien sur la Fibre de Bois, Ressources Naturelles Canada, Québec, QC G1V4C7, Canada; Department of Environmental and Biological Sciences, University of Eastern Finland, Joensuu, Finland },
DOCUMENT_TYPE = { Article },
DOI = { 10.1093/forestry/cpz029 },
SOURCE = { Scopus },
URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85082793944&doi=10.1093%2fforestry%2fcpz029&partnerID=40&md5=c9f719c32a42dbf130f9879ecc429947 },
}
