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Black spruce stand at Arctic Chalet, Inuvik, NT Spruce-pine-fir (SPF) is a classification of lumber that can be traded on commodities exchanges.. In Canada, and parts of the United States, most of the spruce tree species, pine tree species, and fir tree species share similar physical and mechanical characteristics, to the point where lumber derived from any of these species are interchangeable ...
Growth and yield of balsam fir and black spruce in Quebec. Department of Forestry and rural development, Forest Research Laboratory, Quebec Region, Information Report Q-X-2, 58p. Boudoux's empirical yield tables: Stand yield model: Quebec: Boreal, Great Lakes-St.Lawrence: Eastern SPF: Even-aged: Unmanaged stands: 2, 5 No No: Boudoux,M. 1978.
An estimate of the value and possible uses of timber is an important part of the broader information required to sustain ecosystems. [1] When taking forest inventory the following are important things to measure and note: species, diameter at breast height (DBH), height, site quality , age, and defects.
Finished lumber is supplied in standard sizes, mostly for the construction industry – primarily softwood, from coniferous species, including pine, fir and spruce (collectively spruce-pine-fir), cedar, and hemlock, but also some hardwood, for high-grade flooring. It is more commonly made from softwood than hardwoods, and 80% of lumber comes ...
) SDI of 277 for lodgepole pine and 416 for subalpine fir. This meant 277 lodgepole pines at 10 inches (250 mm) diameter at DBH per acre in western Oregon on a typical site. However, if a mixed stand was wanted, which is most likely to reduce risk of bark beetles or some other disturbance, then adjustments need to be made to the SDIs. This can ...
US Forest Products Laboratory, "Characteristics and Availability of Commercially Important Wood" from the Wood Handbook Archived 2021-01-18 at the Wayback Machine PDF 916K International Wood Collectors Society
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Site index is a term used in forestry to describe the potential for forest trees to grow at a particular location or "site". Site is defined as "The average age of dominate and/or codominate trees of an even-aged, undisturbed site of intolerant trees at a base age"; [1] furthermore, the word site is used in forestry to refer to a distinct area where trees are found. [2]