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Timber Stand Improvement: Thinning Guidelines for Douglas-Fir

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Abstract:

Thinning, both precommercial and commercial, has increased rapidly since 1958 in the national forests of Oregon and Washington. Precommercial thinning of west side Douglas-fir was begun in 1961 and carried out on 8,000 acres during Fiscal Year 1966. To aid those engaged in such practices thinning guides were prepared for use on national forests, within the Douglas-fir subregion.

Document Type: Journal Article

Affiliations: Principal Assistant in Silviculture, Pacific North-west Region, Forest Service, U.S. Dept. Agric. Portland, Ore.

Publication date: 1969-01-01

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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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