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Creator:: Tappeiner, J. C. (John C.), Bell, John F., Brodie, J. Douglas (John Douglas), 1938-, and Oregon State University. Forest Research Laboratory
Abstract:: A 20-year-old Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] stand in the Oregon Coast Range was thinned from about 1,700 to about 350 trees/ac. Subsequent thinnings, under eight different regimes, occurred at ages 23, 27, 30, and 32. Average net periodic cubic-volume growth was strongly influenced by thinning regime, varying from about...
Resource Type:: Technical Report
Full Text:: DOUGLAS-FIR TO 16 YEARS OF INTENSIVE THINNING J.C. TAPPEINER J.F. BELL J.D. BRODIE SCHOOL OF FORESTRY

Creator:: Berg, Alan B. and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: Commercial Thinning in Douglas-Fir with a Horse y Alan

Creator:: Berg, Alan B., Doerksen, Allan, and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: thinning wer ed widely, ed an open canopy- Scattered under the Douglas-fir were 16 sm redcedarpnd ern

Creator:: Kellogg, L. D. (Loren D.), Milota, Ginger, Stringham, Bennett, and Oregon State University. Forest Research Laboratory
Abstract:: Logging planning and layout costs were examined for commercial thinning of 40- to 50-yr-old stands of Douglas-fir on the Willamette National Forest in the Cascade Mountains of Oregon. The study consisted of four replications of three silvicultural treatments. Thinning involved three types of logging systems: mechanized cut-to-length (a combination of...
Resource Type:: Technical Report
Full Text:: thinning, leaving 50 to 55 residual tpa, followed by under- planting with a mixture of Douglas-fir, western

Creator:: Kellogg, L. D. (Loren D.), Davis, Chad T. (Chad Thomas), and Oregon State University. Forest Research Laboratory
Abstract:: Harvesting productivity rates and costs were determined for three silvicultural treatments used in commercial ground-based thinning of young stands to achieve timber management objectives and enhance wildlife habitat. Treatment definitions were based on residual trees per acre (tpa) after thinning. The treatments were light thin (115 residual tpa), light thin...
Resource Type:: Technical Report
Full Text:: i o n 4 8 F o r e s t R e s e a r c h L a b o r a t o r y TracTor Thinning ProducTiviTy and

Creator:: Kellogg, L. D. (Loren D.), Spong, Ben, and Oregon State University. Forest Research Laboratory
Abstract:: Young Douglas-fir stands were commercially thinned to achieve vegetation- and wildlife-related objectives. Harvesting and forwarding production and costs were compared among three mechanized thinning treatments: light thin [(115 residual trees per acre (tpa)], light thin with 0.5-ac openings (92 residual tpa), and heavy thin (53 residual tpa). The sites were...
Resource Type:: Technical Report
Full Text:: . 1997. Soil Compaction and Disturbance Following Thinning of Second Growth Douglas-fir with a Cut-to

Creator:: Kangur, Rudolf and Oregon State University. Forest Research Laboratory
Abstract:: Two intermediate cuttings were made in a Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stand on the Wilark forest management research area in northwestern Oregon. Age of trees in the stand varied from 47 to 62 years at the first cutting. Crawler tractors were used in both extractions. In the first cutting,...
Resource Type:: Technical Report
Full Text:: , for their excellent work and cooperation in the second thinning. 2 Two Thinninge of Douglas-fir

Creator:: Kangur, Rudolf and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: , for their excellent work and cooperation in the second thinning. 2 Two Thinninge of Douglas-fir

Creator:: Noone, Charles S., Bell, John F., and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: - dependent stand model for Douglas-fir. Indices developed by other authors also require data on intertree

Creator:: Morrell, Jeffrey J., Helsing, Guy G., Graham, R. D. (Robert D.), and Oregon State University. Forest Research Laboratory
Resource Type:: Technical Report
Full Text:: MAINTENANCE MANUAL: A GUIDE FOR PROPER USE OF DOUGLAS-FIR IN MARINE EXPOSURES JEFFERY J. MORRELL GUY G

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