Multiproduct Timber Inventory

A timber quality inventory system is presented that measures the basic stem characteristics and defect features influencing quality and quantity for most primary products. Stem defect features measured on sample trees include stem form defects, scar defects, and knot or limb characteristics. Timber inventory data obtained are used in conjunction with standard methods of volume estimation, scaling, and grading to estimate: 1) Gross volume suitable for primary product, 2) probable volume reduction due to visual scaling defects, and 3) quality of timber in terms of existing grading or quality classification systems. The system was developed on southwestern ponderosa pine stands, for the range of primary products for which ponderosa pine is potentially suited. The basic methodology may nevertheless be applied with little difficulty to other areas and other species.

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