AutyAchim2008

Référence

Auty, D., Achim, A. (2008) The relationship between standing tree acoustic assessment and timber quality in Scots pine and the practical implications for assessing timber quality from naturally regenerated stands. Forestry, 81(4):475-487.

Résumé

This paper describes studies that were conducted to test the hypotheses that acoustic tools provide reliable non-destructive predictions of mechanical properties of Scots pine (Pinus sylvestris L.) and that these allow comparisons of the timber quality between stands with different silvicultural histories. Acoustic testing was carried out in two plantations (Mount High and Seafield Estate) and one naturally regenerated stand (Glengarry Forest) in North Scotland. One hundred trees were assessed at Mount High and Seafield Estate and 11 trees were felled for cutting into 40 small clear specimens. These were then subjected to static three-point bending tests. Linear regression analysis demonstrated a good correlation between acoustic velocity and modulus of elasticity (MoE) (R-2 = 0.53) and between acoustic velocity and modulus of rupture (MoR) (R-2 = 0.59). A non-linear model was applied to take into account the effect of age on MoE (R-2 = 0.58) and MoR (R-2 = 0.54), and the data from all three sites were compared taking into account the biases that could be attributable to differences in age. The predicted mean MoE and MoR values indicated that the mechanical properties of the clear wood from the naturally regenerated trees are at least comparable with those from the plantation-grown trees.

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 { AutyAchim2008,
    AUTHOR = { Auty, D. and Achim, A. },
    TITLE = { The relationship between standing tree acoustic assessment and timber quality in Scots pine and the practical implications for assessing timber quality from naturally regenerated stands },
    JOURNAL = { Forestry },
    YEAR = { 2008 },
    VOLUME = { 81 },
    PAGES = { 475-487 },
    NUMBER = { 4 },
    NOTE = { Auty, David Achim, Alexis },
    ABSTRACT = { This paper describes studies that were conducted to test the hypotheses that acoustic tools provide reliable non-destructive predictions of mechanical properties of Scots pine (Pinus sylvestris L.) and that these allow comparisons of the timber quality between stands with different silvicultural histories. Acoustic testing was carried out in two plantations (Mount High and Seafield Estate) and one naturally regenerated stand (Glengarry Forest) in North Scotland. One hundred trees were assessed at Mount High and Seafield Estate and 11 trees were felled for cutting into 40 small clear specimens. These were then subjected to static three-point bending tests. Linear regression analysis demonstrated a good correlation between acoustic velocity and modulus of elasticity (MoE) (R-2 = 0.53) and between acoustic velocity and modulus of rupture (MoR) (R-2 = 0.59). A non-linear model was applied to take into account the effect of age on MoE (R-2 = 0.58) and MoR (R-2 = 0.54), and the data from all three sites were compared taking into account the biases that could be attributable to differences in age. The predicted mean MoE and MoR values indicated that the mechanical properties of the clear wood from the naturally regenerated trees are at least comparable with those from the plantation-grown trees. },
    OWNER = { amriv2 },
    TIMESTAMP = { 2012.06.28 },
}

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

Abonnez-vous à
l'Infolettre du CEF!

********************************************************** ***************** 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...