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Abstract
This study used ring width correlations to examine the effects of tree-growth suppression on within-tree local wood density and tracheid anatomical properties. A wood core sample was taken from a 70-yr-old Douglas-fir that grew under various degrees of suppression in a natural forest setting. SilviScan and an imaging technique were used to obtain wood density and tracheid cross-section dimensions. The results indicated that wood and tracheid properties correlate to annual-ring width very well. The results also reveal that growth suppression may increase the uniformity of wood density and tracheid cell-wall thickness in both radial and tangential directions.
Keywords
SilviScan,
tracheid,
wood density,
diameter,
wall thickness,
anisotropy,
image analysis,
resolution,
suppressed growth,
small diameter,
thinnings,
pulp,
pulping,
Douglas fir,
wood anatomy,
image analysis,
tree-rings,
stand density,
pulpwood,
Ring profiler,
small timbers,
utilization,
smallwood,
small-diameter timber
Citation
Zhu, J.Y.; Vahey, David W.; Scott, C. Tim. 2008. Some observations of wood density and anatomical properties in a Douglas-fir sample with suppressed growth. Wood and Fiber Science. 40(2): 225-232.
