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Estimating volume and value on standing timber in hybrid poplar plantations using terrestrial laser scanning : a case study

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dc.contributor.advisor Murphy, Glen
dc.creator Barnett, Jennifer S.
dc.date.accessioned 2012-06-27T15:36:03Z
dc.date.available 2012-06-27T15:36:03Z
dc.date.copyright 2012-05-25
dc.date.issued 2012-05-25
dc.identifier.uri http://hdl.handle.net/1957/30216
dc.description Graduation date: 2012 en_US
dc.description.abstract Terrestrial laser scanning (TLS) may provide a way to increase timber value recovery by replacing manual timber cruising with a simple-to-use, cost-effective alternative. TLS has been studied in several trials worldwide. Past studies have not compared TLS based estimates with mill estimates of stem value and volume. Three differently stocked stands of hybrid poplar were selected for diameter, stem sinuosity and height measurement using manual cruising and TLS. Selected trees were harvested and transported to a mill where they were scanned and then processed into lumber and chips. Data gathered using both manual and TLS methods were used to obtain stem volume and value estimates to compare with mill estimates. Results indicated that TLS diameter measurements were more accurately matched to mill and manual measurements up to about 7.5 meters on the stem than above 7.5 meters on the stem in all three stands. Stem curvature comparisons indicated that the variation between TLS and mill centerline measurements was similar to the variation between repeat mill scan measurements of the same stems. Using TLS as a pre-harvest inventory tool showed that additional revenue could be obtained from the reallocation of saw-log and chip log volume to veneer logs of various sizes in all three stands. It was also shown that the sampling error required to estimate stand value was greater than was required to estimate stand volume within the same error limits. en_US
dc.language.iso en_US en_US
dc.subject.lcsh Optical radar en_US
dc.subject.lcsh Forests and forestry -- Remote sensing en_US
dc.subject.lcsh Forests and forestry -- Measurement -- Economic aspects en_US
dc.subject.lcsh Forests and forestry -- Valuation en_US
dc.subject.lcsh Poplar -- Remote sensing en_US
dc.title Estimating volume and value on standing timber in hybrid poplar plantations using terrestrial laser scanning : a case study en_US
dc.type Thesis/Dissertation en_US
dc.degree.name Master of Science (M.S.) in Forest Engineering en_US
dc.degree.level Master's en_US
dc.degree.discipline Forestry en_US
dc.degree.grantor Oregon State University en_US
dc.contributor.committeemember Hailemariam, Temesgen
dc.contributor.committeemember Lachenbruch, Barb
dc.contributor.committeemember Harper, Stacey
dc.description.peerreview no en_us

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