WaldronAutyTongEtAl2020

Référence

Waldron, K., Auty, D., Tong, T., Ward, C., Pothier, D., Torquato, L.P., Achim, A. (2020) Fire as a driver of wood mechanical traits in the boreal forest. Forest Ecology and Management, 476. (Scopus )

Résumé

In boreal forests where the fire return interval is long, the high structural variability of stands may affect wood traits. Here, we build on earlier work that revealed a difference in wood mechanical traits of black spruce between regular (regenerated from fire in the last 200 years) and irregular (undisturbed by fire for at least 200 years) stands. This study aimed to identify the ecological drivers of this variation in wood traits. To do so, we first sought to corroborate existing results on the effects of stand structure induced by the time since the last stand-replacing fire (TSLF) on wood mechanical stiffness in the eastern boreal forest of Canada. Results confirmed that black spruce from regular stands tend to produce wood with higher modulus of elasticity (MOE) than those from irregular stands. For both regular and irregular stands, we compared a set of linear models that were defined a priori to determine the structural and site productivity variables having the largest influence on MOE. The ‘growth efficiency index’ (aboveground woody biomass production per unit leaf area) was the best predictor of MOE variation among regular stands. For irregular stands, the model with TSLF as the sole explanatory variable was a better predictor of MOE than any other candidate model. However, we did not find strong evidence of a direct relationship between TSLF and wood traits, since our best models explained a relatively small proportion of the variance. Our results suggest that differences in wood traits could be attributable to the seed or layer origin of the trees and/or to the length of time trees remain in the understory. We propose that intensive wood production strategies focus on stands of the first post-fire cohort. © 2020 Elsevier B.V.

Format EndNote

Vous pouvez importer cette référence dans EndNote.

Format BibTeX-CSV

Vous pouvez importer cette référence en format BibTeX-CSV.

Format BibTeX

Vous pouvez copier l'entrée BibTeX de cette référence ci-bas, ou l'importer directement dans un logiciel tel que JabRef .

@ARTICLE { WaldronAutyTongEtAl2020,
    AUTHOR = { Waldron, K. and Auty, D. and Tong, T. and Ward, C. and Pothier, D. and Torquato, L.P. and Achim, A. },
    JOURNAL = { Forest Ecology and Management },
    TITLE = { Fire as a driver of wood mechanical traits in the boreal forest },
    YEAR = { 2020 },
    NOTE = { cited By 0 },
    VOLUME = { 476 },
    ABSTRACT = { In boreal forests where the fire return interval is long, the high structural variability of stands may affect wood traits. Here, we build on earlier work that revealed a difference in wood mechanical traits of black spruce between regular (regenerated from fire in the last 200 years) and irregular (undisturbed by fire for at least 200 years) stands. This study aimed to identify the ecological drivers of this variation in wood traits. To do so, we first sought to corroborate existing results on the effects of stand structure induced by the time since the last stand-replacing fire (TSLF) on wood mechanical stiffness in the eastern boreal forest of Canada. Results confirmed that black spruce from regular stands tend to produce wood with higher modulus of elasticity (MOE) than those from irregular stands. For both regular and irregular stands, we compared a set of linear models that were defined a priori to determine the structural and site productivity variables having the largest influence on MOE. The ‘growth efficiency index’ (aboveground woody biomass production per unit leaf area) was the best predictor of MOE variation among regular stands. For irregular stands, the model with TSLF as the sole explanatory variable was a better predictor of MOE than any other candidate model. However, we did not find strong evidence of a direct relationship between TSLF and wood traits, since our best models explained a relatively small proportion of the variance. Our results suggest that differences in wood traits could be attributable to the seed or layer origin of the trees and/or to the length of time trees remain in the understory. We propose that intensive wood production strategies focus on stands of the first post-fire cohort. © 2020 Elsevier B.V. },
    AFFILIATION = { Faculté de foresterie, de géographie et de géomatique, Département des sciences du bois et de la forêt, Pavillon Abitibi-Price, Université Laval, 2405 rue de la Terrasse, Québec, QC G1V 0A6, Canada; Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, 1055 rue du P.E.P.S., P.O. Box 10380, Stn. Sainte-Foy, Québec, QC G1V 4C7, Canada; Northern Arizona University, School of Forestry, 200 E. Pine Knoll Dr., Flagstaff, AZ 86005, United States; FPInnovations, 2665 East Mall, Vancouver, BC V6T 1Z4, Canada; Direction de la recherche forestière, Ministère des Forêts, de la Faune et des Parcs du Québec, 2700 rue Einstein, Québec, QC G1P 3W8, Canada },
    ART_NUMBER = { 118460 },
    AUTHOR_KEYWORDS = { Black spruce; Forest productivity; Old-growth; Post-fire chronosequence; Stand structure; Wood stiffness; Wood traits },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1016/j.foreco.2020.118460 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85088915396&doi=10.1016%2fj.foreco.2020.118460&partnerID=40&md5=5137b909044039d2d7ff07af34b2356b },
}

********************************************************** *************************** FRQNT ************************ **********************************************************

Le CEF est un
regroupement stratégique du

********************************************************** *********************** Infolettre *********************** **********************************************************

Abonnez-vous à
l'Infolettre du CEF!

********************************************************** ***************** Pub - Colloque du CEF ****************** **********************************************************

********************************************************** ************* Écoles d'été et formation **************************** **********************************************************

Formations et Écoles d'été

********************************************************** ***************** Pub - Congrès Mycelium ****************** **********************************************************

Septembre 2021

********************************************************** ***************** Pub - IWTT ****************** **********************************************************

Reporté en 2021

**********************************************************

***************** Pub - Symphonies_Boreales ****************** **********************************************************

********************************************************** ***************** Boîte à trucs *************** **********************************************************

CEF-Référence
La référence vedette !

  • Voici une liste (clairement incomplète) des packages R axés sur l'écologie! N'hésitez pas à ajouter à la liste

Voir les autres...