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Growth Along the Stems of Full-Crowned Douglas-Fir Trees After Pruning to Specified Heights

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Twenty trees from 22 to 55 feet tall were pruned to 0, 1/3, ½, and 2/3 of their total height. Diameter measurements after one and two years at several points along the bole showed that 1/3 removal affected growth and form little or not at all. Volume growth was reduced by heavier removals but was so distributed that a more nearly cylindrical bole resulted. Height growth was reduced by the 2/3 pruning, but insignificantly by lesser removals.

Document Type: Journal Article

Affiliations: Silviculturist, Weyerhaeuser Company, Forestry Research Center, Centralia, Wash.

Publication date: February 1, 1963

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  • 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.
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