2008
DOI: 10.1139/x08-038
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Predicting selected wood properties of jack pine following commercial thinning

Abstract: This paper examined the impact of commercial thinning on selected wood properties of jack pine (Pinus banksiana Lamb.). Wood properties evaluated include wood density (ring density, earlywood ring density, and latewood ring density), percentage of latewood in the ring, and wood bending properties. Nonlinear, mixed-effect models have been developed using data from three commercially thinned sites in eastern Canada. Ring density followed the same pattern as percentage of latewood, in which cambial age, relative … Show more

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Cited by 61 publications
(32 citation statements)
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“…The differing annual growth rate between plantation spacings seems to be insufficient to generate a noticeable difference in mechanical properties, but different results could be obtained by testing larger size samples [65]. On small clear samples, our results are partially in accordance with the work of Schneider et al [66] for jack pine where the MOR, but not MOE, was affected by ring width. However, the higher values of branch diameter and larger number of overall branches (living and dead ones) at a wider spacing can affect mechanical properties when tested on pieces of commercial dimensions [67].…”
Section: Spacing and Wood Quality Attributessupporting
confidence: 87%
“…The differing annual growth rate between plantation spacings seems to be insufficient to generate a noticeable difference in mechanical properties, but different results could be obtained by testing larger size samples [65]. On small clear samples, our results are partially in accordance with the work of Schneider et al [66] for jack pine where the MOR, but not MOE, was affected by ring width. However, the higher values of branch diameter and larger number of overall branches (living and dead ones) at a wider spacing can affect mechanical properties when tested on pieces of commercial dimensions [67].…”
Section: Spacing and Wood Quality Attributessupporting
confidence: 87%
“…; Pape, 1999), le pin gris (Pinus banksiana Lamb. ; Schneider et al, 2008), le sapin baumier (Abies balsamea (L.) Mill. ; Raulier et al, 2003;Bourgeois et al, 2004) et sur des peuplements mixtes de sapin baumier avec l'épinette noire (Liu et al, 2007a).…”
Section: Liste Des Tableauxunclassified
“…De plus, les résultats sont en accord avec l'hypothèse de juvénilité, celui-ci étant caractérisé par une proportion de bois final moindre (Panshin et Zeeuw, 1980;Mansfield et al, 2009 (Pothier et al, 1989). De ce fait, l'aire du lumen des trachéides doit être plus importante afin de compenser cette perte de conductivité causée par la longueur réduite des trachéides (Schneider et al, 2008).…”
Section: Qualité Du Bois Proportion De Bois Final Et Masse Volumique unclassified
“…Density is also recognized as one of the most important properties of wood in regard to mechanical resistance and varies according to the structure of the tracheids (Lindstrom, 1997). The changes in the conifer tree-ring density integrate the variation in the anatomy of the rings; in particular in the thickness of the cell wall, cell diameter and lumen diameter, but also in the proportion of the ring occupied by latewood (Biermann, 1996;Lindstrom, 1997;Vaganov, 1996;Vaganov and Sviderskaya, 1990) Cambial age has an influence on the quality of wood (Antal and Micko, 1994;Forest Products Laboratory, 2010;Haygreen and Bowyer, 1989;Panshin and De Zeeuw, 1970;Schneider et al, 2008;Spicer and Gartner, 2001;Yang and Hazenberg, 1994). Cambial maturation describes a developmental process that results in a change of dimensions of cambial initials over time, which in turn affects the dimensions of xylem cells produced by the cambium (Barnett and Jeronimidis, 2003).…”
Section: Introductionmentioning
confidence: 99%
“…During this period the xylem production is called "juvenile wood" and characterized by lower wood density associated with larger tracheid diameters and larger lumen to ensure appropriate sap flow. During the first few years, mechanical support is not required because the cells produced in the juvenile phase act more in transporting water, carbon and nutrients than in supporting the stem (Schneider et aL, 2008). In contrast, xylem produced by a mature cambium is referred to "mature wood" and characterized by relatively uniform anatomical properties (Cown, 1992;Panshin and De Zeeuw, 1970;Senft et ai, 1985;Spicer and Gartner, 2001;Zobel and Buijtenen, 1989).…”
Section: Introductionmentioning
confidence: 99%