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Some Strength Properties of Second-Growth Douglas Fir

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Abstract:

Increasing use of second-growth Douglas-fir focuses interest on the physical properties of such wood in relation to those of old-growth timber. Test data are presented on specific gravity, modulus of rupture, and modulus of elasticity of wood samples sawn from various heights and radial zones from three sample second-growth trees grown on Sites II, III, and IV.

Document Type: Journal Article

Affiliations: Assistant Professor of Forestry, Yale University School of Forestry, New Haven, Conn.

Publication date: January 1, 1949

More about this publication?
  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.

    2015 Impact Factor: 1.476
    Ranking: 22 of 66 in forestry

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