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Estimating tree bole and log weights from green densities measured with the Bergstrom Xylodensimeter.Author(s): Dale R. Waddell; Michael B. Lambert; W.Y. Pong
Source: Res. Pap. PNW-RP-322. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 24 p
Publication Series: Research Paper (RP)
Station: Pacific Northwest Research Station
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DescriptionThe performance of the Bergstrom xylodensimeter, designed to measure the green density of wood, was investigated and compared with a technique that derived green densities from wood disk samples. In addition, log and bole weights of old-growth Douglas-fir and western hemlock were calculated by various formulas and compared with lifted weights measured with a load cell attached to a front-end loader. The Bergstrom xylodensimeter accurately measured green wood density and is useful for estimating log weights.
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CitationWaddell, Dale R.; Lambert, Michael B.; Pong, W.Y. 1984. Estimating tree bole and log weights from green densities measured with the Bergstrom Xylodensimeter. Res. Pap. PNW-RP-322. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 24 p
Keywordslog measurements, boles, wood density, cubic volume measure, measuring equipment, old-growth stands
- Wood density-moisture profiles in old-growth Douglas-fir and western hemlock.
- Stereo photo series for quantifying forest residues in the Douglas-Fir-Hemlock type of the Willamette National Forest.
- Water dynamics in conifer logs in early stages of decay in the Pacific Northwest, U.S.A
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