Propriétés du bois et qualité des sciages dans les pessières noires de seconde venue issues de coupe et de feu
|Authors:||Spǎtǎcean, Corneliu Adrian|
|Advisor:||Ruel, Jean-Claude; Zhang, S. Y.|
|Abstract:||The objectives of this project were to evaluate the effects of stand origin on lumber grade yield, MSR yield and bending properties and to describe the variability of wood mechanical and physical properties at different hierarchical levels in black spruce. The results indicate that a similar percentage of lumber pieces are graded as No.2 and better in logged stands, but this percentage is 20% lower than in burned stand. The MSR grades yield in logged stands is similar to that from natural stands but partial-cut origin stand has less lumber in superior MSR class due to lower bending properties. For all properties studied the between stands variance is much less important than within stand variance. Moreover, inter-tree variance component of MOE and MOR are lower than intra-tree variance. The stands that showed a more important DBH variance and asymmetrical competition present more important inter-tree variance in wood mechanical properties.|
|Document Type:||Mémoire de maîtrise|
|Open Access Date:||13 April 2018|
|Collection:||Thèses et mémoires|
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