PowerSchneiderBerninger2014

Référence

Power, H., Schneider, R. and Berninger, F. (2014) Understanding changes in black (Picea mariana) and white spruce (Picea glauca) foliage biomass and leaf area characteristics. Trees - Structure and Function, 28(2):345-357. (Scopus )

Résumé

Key message: Growth conditions related to inter-tree competition greatly influence black and white spruce foliage biomass and projected leaf area characteristics. Foliage characteristics such as biomass and area are important among other reasons because they can be related to tree growth. Despite their economic and ecologic importance, equations to characterize foliage biomass and projected area of black (Picea mariana (Miller) BSP) and white (Picea glauca (Moench) Voss) spruces are sparse. Total foliage biomass and projected leaf area, foliage biomass and leaf area density, and relative vertical distribution of black and white spruces foliage biomass and leaf area were modelled with linear and nonlinear mixed effect models. A total of 65 white spruces and 57 black spruces were destructively sampled at four different locations in Alberta, Québec, and Ontario, Canada. Our results show that for each species, total tree foliage biomass and projected leaf area is proportional to stem diameter, total height, and crown length. The addition of crown length in the equations improved the precision of the predictions of total foliage biomass for both species and diminishes greatly the site level random effect. An increase in DBH for black spruce and in the DBH to total height ratio for white spruce skewed the relative vertical foliage biomass distribution toward the base of the living crown. According to our results, growth conditions or tree development stage influence both foliage biomass and leaf area characteristics of black and white spruces. Our results emphasize the importance of inter-tree competition on foliage biomass characteristics. © 2013 Springer-Verlag Berlin Heidelberg.

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 { PowerSchneiderBerninger2014,
    AUTHOR = { Power, H. and Schneider, R. and Berninger, F. },
    TITLE = { Understanding changes in black (Picea mariana) and white spruce (Picea glauca) foliage biomass and leaf area characteristics },
    JOURNAL = { Trees - Structure and Function },
    YEAR = { 2014 },
    VOLUME = { 28 },
    PAGES = { 345-357 },
    NUMBER = { 2 },
    ABSTRACT = { Key message: Growth conditions related to inter-tree competition greatly influence black and white spruce foliage biomass and projected leaf area characteristics. Foliage characteristics such as biomass and area are important among other reasons because they can be related to tree growth. Despite their economic and ecologic importance, equations to characterize foliage biomass and projected area of black (Picea mariana (Miller) BSP) and white (Picea glauca (Moench) Voss) spruces are sparse. Total foliage biomass and projected leaf area, foliage biomass and leaf area density, and relative vertical distribution of black and white spruces foliage biomass and leaf area were modelled with linear and nonlinear mixed effect models. A total of 65 white spruces and 57 black spruces were destructively sampled at four different locations in Alberta, Québec, and Ontario, Canada. Our results show that for each species, total tree foliage biomass and projected leaf area is proportional to stem diameter, total height, and crown length. The addition of crown length in the equations improved the precision of the predictions of total foliage biomass for both species and diminishes greatly the site level random effect. An increase in DBH for black spruce and in the DBH to total height ratio for white spruce skewed the relative vertical foliage biomass distribution toward the base of the living crown. According to our results, growth conditions or tree development stage influence both foliage biomass and leaf area characteristics of black and white spruces. Our results emphasize the importance of inter-tree competition on foliage biomass characteristics. © 2013 Springer-Verlag Berlin Heidelberg. },
    ADDRESS = { Department of Forest Sciences, University of Helsinki, P.O. Box 27, 00014 Helsinki, Finland },
    COMMENT = { Export Date: 31 March 2014 Source: Scopus },
    KEYWORDS = { Crown characteristics, Foliage density, Foliage distribution, Nonlinear mixed-effects models },
    OWNER = { Luc },
    TIMESTAMP = { 2014.03.31 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-84896400201&partnerID=40&md5=2b124267d12c2760b46bbd42cd1c64ea },
}

********************************************************** ***************** Facebook Twitter *********************** **********************************************************

Abonnez-vous à
l'Infolettre du CEF!

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

Écoles d'été et formations

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

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

CEF-Référence
La référence vedette !

Jérémie Alluard (2016) Les statistiques au moments de la rédaction 

  • Ce document a pour but de guider les étudiants à intégrer de manière appropriée une analyse statistique dans leur rapport de recherche.

Voir les autres...