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• 1. [Article] Conservation plans for the northern spotted owl and other forest management proposals in Oregon : the economics of changing timber availability

  Gerald W. Williams Collection

  Citation × Citation Citation Abstract Copy Title: Conservation plans for the northern spotted owl and other forest management proposals in Oregon : the economics of changing timber availability Author: Lettman, Gary, Greber, Brian J., Oregon State University. Forest Research Laboratory, Johnson, K. Norman Gerald W. Williams Collection Title: Conservation plans for the northern spotted owl and other forest management proposals in Oregon : the economics of changing timber availability Author: Lettman, Gary, Greber, Brian J., Oregon State University. Forest Research Laboratory, Johnson, K. Norman Gerald W. Williams Collection Close

• 2. [Article] Users manual for the FLEX2 and FLEX3 model processors for the FLEX modelling paradigm

  Citation × Citation Citation Abstract Copy Title: Users manual for the FLEX2 and FLEX3 model processors for the FLEX modelling paradigm Author: White, Curtis, Oregon State University. Forest Research Laboratory, Oregon State University. School of Forestry, Overton, W. Scott Title: Users manual for the FLEX2 and FLEX3 model processors for the FLEX modelling paradigm Author: White, Curtis, Oregon State University. Forest Research Laboratory, Oregon State University. School of Forestry, Overton, W. Scott Close

• 3. [Article] Wood pole maintenance manual

  The specification, inspection, and remedial treatment of utility poles are addressed. Included are discussions of enhancing specifications for improved performance, techniques for detecting decay and other ...

  Citation × Citation Citation Abstract Copy Title: Wood pole maintenance manual Author: Morrell, Jeffrey J., Oregon State University. Forest Research Laboratory The specification, inspection, and remedial treatment of utility poles are addressed. Included are discussions of enhancing specifications for improved performance, techniques for detecting decay and other defects, and chemical treatments available for arresting decay of poles in service. Title: Wood pole maintenance manual Author: Morrell, Jeffrey J., Oregon State University. Forest Research Laboratory The specification, inspection, and remedial treatment of utility poles are addressed. Included are discussions of enhancing specifications for improved performance, techniques for detecting decay and other defects, and chemical treatments available for arresting decay of poles in service. Close

• 4. [Article] Predicting height for undamaged and damaged trees in southwest Oregon

  Equations for predicting tree height as a function of diameter outside bark at breast height are presented for various tree species common to southwest Oregon. Data for damaged and undamaged trees were ...

  Citation × Citation Citation Abstract Copy Title: Predicting height for undamaged and damaged trees in southwest Oregon Author: Hanus, Mark L., Oregon State University. Forest Research Laboratory, Hann, David W., Marshall, David D. Equations for predicting tree height as a function of diameter outside bark at breast height are presented for various tree species common to southwest Oregon. Data for damaged and undamaged trees were analyzed with weighted nonlinear regression techniques. The effects of specific damaging agents and their severity on the height-diameter relationship were explored. Damage correction multipliers were estimated, then used to correct predicted height where damage was noted. Because the relationship between height and diameter changes with the competitive position of the tree in a stand, alternative equations are presented that include the average height and diameter of the 40 largest-diameter undamaged conifer trees per acre. Foresters can use these "height-diameter" equations to reduce the time-consuming task of measuring heights of every tree in an inventory, stand exam, or timber cruise. They can also use these equations to estimate the change in height as diameter changes. These equations will be incorporated into the new southwest Oregon version of ORGANON, which extends the model to older stands and stands with a heavier component of hardwood species. Title: Predicting height for undamaged and damaged trees in southwest Oregon Author: Hanus, Mark L., Oregon State University. Forest Research Laboratory, Hann, David W., Marshall, David D. Equations for predicting tree height as a function of diameter outside bark at breast height are presented for various tree species common to southwest Oregon. Data for damaged and undamaged trees were analyzed with weighted nonlinear regression techniques. The effects of specific damaging agents and their severity on the height-diameter relationship were explored. Damage correction multipliers were estimated, then used to correct predicted height where damage was noted. Because the relationship between height and diameter changes with the competitive position of the tree in a stand, alternative equations are presented that include the average height and diameter of the 40 largest-diameter undamaged conifer trees per acre. Foresters can use these "height-diameter" equations to reduce the time-consuming task of measuring heights of every tree in an inventory, stand exam, or timber cruise. They can also use these equations to estimate the change in height as diameter changes. These equations will be incorporated into the new southwest Oregon version of ORGANON, which extends the model to older stands and stands with a heavier component of hardwood species. Close

• 5. [Article] Enhanced mortality equations for trees in the mixed conifer zone of Southwest Oregon

  Equations for predicting the probability of a tree's dying in the next 5 years are presented for eight conifer and eight hardwood tree species from southwest Oregon. A logistic equation form was used to ...

  Citation × Citation Citation Abstract Copy Title: Enhanced mortality equations for trees in the mixed conifer zone of Southwest Oregon Author: Hanus, Mark L., Oregon State University. Forest Research Laboratory, Hann, David W. Equations for predicting the probability of a tree's dying in the next 5 years are presented for eight conifer and eight hardwood tree species from southwest Oregon. A logistic equation form was used to characterize the probability of mortality. The parameters of the equation were estimated using weighted, maximum likelihood procedures. These equations are being incorporated into the new southwest Oregon version of ORGANON, a model for predicting stand development. In particular, the equations extend the previous model to older stands and and stands with a heavier component of hardwood tree species. Title: Enhanced mortality equations for trees in the mixed conifer zone of Southwest Oregon Author: Hanus, Mark L., Oregon State University. Forest Research Laboratory, Hann, David W. Equations for predicting the probability of a tree's dying in the next 5 years are presented for eight conifer and eight hardwood tree species from southwest Oregon. A logistic equation form was used to characterize the probability of mortality. The parameters of the equation were estimated using weighted, maximum likelihood procedures. These equations are being incorporated into the new southwest Oregon version of ORGANON, a model for predicting stand development. In particular, the equations extend the previous model to older stands and and stands with a heavier component of hardwood tree species. Close

• 6. [Article] Landscape Management Policy Simulator (LAMPS) : version 1.1 : user guide

  The LAndscape Management Policy Simulator (LAMPS) model, version 1.1, is a spatial simulation model developed to provide forest landscape planning simulations for the Coastal Landscape Analysis and Modeling ...

  Citation × Citation Citation Abstract Copy Title: Landscape Management Policy Simulator (LAMPS) : version 1.1 : user guide Author: Lennette, Marie, Oregon State University. Forest Research Laboratory, Bettinger, Pete, 1962- The LAndscape Management Policy Simulator (LAMPS) model, version 1.1, is a spatial simulation model developed to provide forest landscape planning simulations for the Coastal Landscape Analysis and Modeling Study (CLAMS). It is designed to help policymakers, managers, and planners think through alternative management scenarios and their potential effects on the ecological and economic resources of Oregon's Coast Range forests. LAMPS simulates changes to landscape structure over time, incorporating the management intentions of the four major landowner groups and vegetation dynamics. Socioeconomic and ecological information is used to track and allocate activities across the landscape. LAMPS projects, with relatively high resolution, forest conditions across broad areas, all ownership groups, and a planning horizon of 100 yr. This user guide provides instructions on how to use LAMPS for forest landscape simulations of alternative forest policies for the Coast Range of Oregon. Title: Landscape Management Policy Simulator (LAMPS) : version 1.1 : user guide Author: Lennette, Marie, Oregon State University. Forest Research Laboratory, Bettinger, Pete, 1962- The LAndscape Management Policy Simulator (LAMPS) model, version 1.1, is a spatial simulation model developed to provide forest landscape planning simulations for the Coastal Landscape Analysis and Modeling Study (CLAMS). It is designed to help policymakers, managers, and planners think through alternative management scenarios and their potential effects on the ecological and economic resources of Oregon's Coast Range forests. LAMPS simulates changes to landscape structure over time, incorporating the management intentions of the four major landowner groups and vegetation dynamics. Socioeconomic and ecological information is used to track and allocate activities across the landscape. LAMPS projects, with relatively high resolution, forest conditions across broad areas, all ownership groups, and a planning horizon of 100 yr. This user guide provides instructions on how to use LAMPS for forest landscape simulations of alternative forest policies for the Coast Range of Oregon. Close

• 7. [Article] A key to the literature presenting tree volume and taper equations for species in the Pacific Northwest and California

  Summaries from 49 published articles on tree volume and taper equations are presented for 39 tree species found in California, Oregon, Washington, British Columbia, southeast Alaska, Idaho, and western ...

  Citation × Citation Citation Abstract Copy Title: A key to the literature presenting tree volume and taper equations for species in the Pacific Northwest and California Author: Oregon State University. Forest Research Laboratory, Hann, David W. Summaries from 49 published articles on tree volume and taper equations are presented for 39 tree species found in California, Oregon, Washington, British Columbia, southeast Alaska, Idaho, and western Montana. The summaries are organized by species and then by type of equation (volume or taper). Each summary describes the types of dependent variables predicted by the equations and the geographic location, number of trees, range in DBH, and range in total height for trees in the sample used to develop the equations. Title: A key to the literature presenting tree volume and taper equations for species in the Pacific Northwest and California Author: Oregon State University. Forest Research Laboratory, Hann, David W. Summaries from 49 published articles on tree volume and taper equations are presented for 39 tree species found in California, Oregon, Washington, British Columbia, southeast Alaska, Idaho, and western Montana. The summaries are organized by species and then by type of equation (volume or taper). Each summary describes the types of dependent variables predicted by the equations and the geographic location, number of trees, range in DBH, and range in total height for trees in the sample used to develop the equations. Close

• 8. [Article] Statistical comparison of methods used in harvesting work studies

  Work-study guidelines were developed using field data from thinning sites in the Oregon Cascade Range. Regression of detailed time study and shift-level data predicted harvesting production rates. Statistical ...

  Citation × Citation Citation Abstract Copy Title: Statistical comparison of methods used in harvesting work studies Author: Oregon State University. Forest Research Laboratory, Miller, Mark E., Hossain, Mohammad M., Olsen, Eldon D. Work-study guidelines were developed using field data from thinning sites in the Oregon Cascade Range. Regression of detailed time study and shift-level data predicted harvesting production rates. Statistical analysis showed the relative difference in the discriminating power between shift-level studies versus detailed time studies. Indicator variables tested if there were significant differences between harvesting treatments. Confidence intervals demonstrated the improved effect of longer study lengths for both shift-level and detailed time studies. Title: Statistical comparison of methods used in harvesting work studies Author: Oregon State University. Forest Research Laboratory, Miller, Mark E., Hossain, Mohammad M., Olsen, Eldon D. Work-study guidelines were developed using field data from thinning sites in the Oregon Cascade Range. Regression of detailed time study and shift-level data predicted harvesting production rates. Statistical analysis showed the relative difference in the discriminating power between shift-level studies versus detailed time studies. Indicator variables tested if there were significant differences between harvesting treatments. Confidence intervals demonstrated the improved effect of longer study lengths for both shift-level and detailed time studies. Close

• 9. [Article] The reproductive ecology of broadleaved trees and shrubs

  a. Overview -- b. Vine maple : Acer circinatum Pursh -- c. Red alder : Alnus rubra Bong. -- d. Tanoak : Lithocarpus densiflorus (Hook & Arn.) Rehd. -- e. Salmonberry : Rubus spectabilis Pursh -- f. Glossary ...

  Citation × Citation Citation Abstract Copy Title: The reproductive ecology of broadleaved trees and shrubs Author: Jensen, Edward C., Oregon State University. Forest Research Laboratory, Anderson, Debra J. a. Overview -- b. Vine maple : Acer circinatum Pursh -- c. Red alder : Alnus rubra Bong. -- d. Tanoak : Lithocarpus densiflorus (Hook & Arn.) Rehd. -- e. Salmonberry : Rubus spectabilis Pursh -- f. Glossary -- g. Associated literature. Title: The reproductive ecology of broadleaved trees and shrubs Author: Jensen, Edward C., Oregon State University. Forest Research Laboratory, Anderson, Debra J. a. Overview -- b. Vine maple : Acer circinatum Pursh -- c. Red alder : Alnus rubra Bong. -- d. Tanoak : Lithocarpus densiflorus (Hook & Arn.) Rehd. -- e. Salmonberry : Rubus spectabilis Pursh -- f. Glossary -- g. Associated literature. Close

• 10. [Article] Optimal bucking : two trials with commercial OSU BUCK software

  Trials to achieve optimal bucking were made with updated OSU-BUCK software in an eastern and a western Oregon location during the summers of 1993 and 1994. The commercial version of the software allows ...

  Citation × Citation Citation Abstract Copy Title: Optimal bucking : two trials with commercial OSU BUCK software Author: Pilkerton, Stephen J., Stringham, Bennett, Oregon State University. Forest Research Laboratory, Olsen, Eldon D. Trials to achieve optimal bucking were made with updated OSU-BUCK software in an eastern and a western Oregon location during the summers of 1993 and 1994. The commercial version of the software allows tagging of each log with bar-code identification numbers and therefore provides tracking from stump to customer. Data management is enhanced by automatic creation of input and output files in spreadsheet format. The software allows a choice of scaling rules, and accommodates multiple species while increasing measurement accuracy. The trials showed that, as with previous software, preferred-length requirements are a stumbling block to achieving the most effectiveness. Value and volume increases achieved with OSU-BUCK were moderate. Pairing a Log-Quality Technician with a faller appears to be a promising method for users of optimal-bucking software. Title: Optimal bucking : two trials with commercial OSU BUCK software Author: Pilkerton, Stephen J., Stringham, Bennett, Oregon State University. Forest Research Laboratory, Olsen, Eldon D. Trials to achieve optimal bucking were made with updated OSU-BUCK software in an eastern and a western Oregon location during the summers of 1993 and 1994. The commercial version of the software allows tagging of each log with bar-code identification numbers and therefore provides tracking from stump to customer. Data management is enhanced by automatic creation of input and output files in spreadsheet format. The software allows a choice of scaling rules, and accommodates multiple species while increasing measurement accuracy. The trials showed that, as with previous software, preferred-length requirements are a stumbling block to achieving the most effectiveness. Value and volume increases achieved with OSU-BUCK were moderate. Pairing a Log-Quality Technician with a faller appears to be a promising method for users of optimal-bucking software. Close