Canadian Forest Service Publications
Acoustic-Based Non-Destructive Estimation of Wood Quality Attributes within Standing Red Pine Trees. 2017. Newton, P.F. Forests 8(10):380.
Issued by: Great Lakes Forestry Centre
Catalog ID: 39228
Availability: PDF (download)
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Plain Language Summary
The relationship between acoustic velocity and the dynamic modulus of elasticity, wood density, microfibril angle, tracheid wall thickness, radial and tangential diameters, fibre coarseness and specific surface area, within standing red pine trees, was investigated. The data acquisition phase involved 3 basic steps: (1) random selection of 54 sample trees from 2 intensively-managed 80-year-old plantations in central Canada; (2) attainment of cardinal-based acoustic velocity measurements transecting the breast-height position on each sample tree; and (3) felling, sectioning and obtaining cross-sectional samples from the first 5.3 m sawlog from which Silviscan-based area-weighted mean attribute estimates were determined. The data analysis phase consisted of applying graphical and correlation analyses to specify regression models for each of the 8 attribute-acoustic velocity relationships. Collectively, the proposed approach and associated results provide the foundation for the development of a comprehensive and precise end-product segregation strategy for use in red pine management.