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Production and costs of cut-to-length thinning : experience from the Willamette Young Stand Project

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dc.coverage.spatial Willamette National Forest (Oregon) en
dc.creator Kellogg, L. D. (Loren D.)
dc.creator Spong, Ben
dc.creator Oregon State University. Forest Research Laboratory
dc.date.accessioned 2008-02-13T18:23:27Z
dc.date.available 2008-02-13T18:23:27Z
dc.date.issued 2004
dc.identifier.uri http://hdl.handle.net/1957/7884
dc.description 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 40- to 50-yr-old stands in the Willamette National Forest in the Cascade Mountains of central western Oregon. Using multiple linear regression equations with indicator variables, we compared both harvesting and forwarding cycle times among treatments. We conducted detailed time studies on a harvester and a forwarder and used these data to develop two regression equations to predict delay-free harvest cycle times and delay-free forwarding cycle times. Delay information was gathered from both shift-level and detailed time studies. Total costs for each treatment were obtained by combining costs for harvesting, forwarding, and moving equipment in and out for the entire operation. Harvesting and forwarding costs did not differ significantly between light and heavy treatments, but were higher in the light-thin-with- openings treatment. Total thinning costs among the three treatments ranged from $28.08 to $34.62/100 ft³. en
dc.format.extent 955749 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Corvallis, Or. : Oregon State University, Forest Research Laboratory en
dc.relation Explorer Site -- Oregon Explorer en
dc.relation Explorer Site -- Forest Explorer en
dc.relation.ispartofseries Research contribution (Oregon State University. Forest Research Laboratory) en
dc.relation.ispartofseries 47 en
dc.subject.lcsh Douglas fir -- Thinning -- Oregon -- Willamette National Forest en
dc.subject.lcsh Logging -- Oregon -- Willamette National Forest -- Planning en
dc.subject.lcsh Forest thinning -- Economic aspects -- Oregon -- Willamette National Forest en
dc.subject.lcsh Forest management -- Economic aspects -- Oregon -- Willamette National Forest en
dc.title Production and costs of cut-to-length thinning : experience from the Willamette Young Stand Project en
dc.type Technical Report en
dc.coverage.spatialecoregion Cascades en

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