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To understand the effects of silvicultural treatments on tree and product modulus of elasticity (MOE), an intensive study along the stand-tree-product value chain was conducted. Acoustic tests were performed on 460 Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) trees from two sites in the US Pacific Northwest. Trees on a site in Washington were 51 years(More)
Acoustic tools have simplified estimation of wood modulus of elasticity (MOE). Strong relationships between acoustic velocity and MOE of logs have encouraged use of acoustics at earlier points in the value chain, culminating in the development of acoustic harvesting systems. With accurate estimates of MOE of individual trees, improvements in efficiency(More)
New Zealand-grown cypresses are typically harvested at 35–40 years of age; however, shorter rotations have been proposed. The objective of this study was to evaluate the feasibility of producing structural products from shorter rotations through examination of wood properties of younger cypress trees. A detailed examination of radial wood property trends(More)
Nectria flute canker is a fungal disease that results in cankers on Pinus radiata stems. The disease, caused by the pathogen Neonectria fuckeliana, is associated with commercial pruning operations that limit knot defect to a central core to promote growth of high-quality clearwood. Nectria flute canker is present in commercial plantation forests in parts of(More)
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