Index Catalog // ScholarsArchive@OSU

Conservation plans for the northern spotted owl and other forest management proposals in Oregon : the economics of changing timber availability

Creator:: Greber, Brian J., Johnson, K. Norman, and Lettman, Gary
Abstract:: The goal of this study is to analyze how the ISC Conservation Strategy may influence Oregon's timber availability and economy in the context of overall changes in public land management. Two themes are important: first, how the state's future will differ from today and second, how the state's future will...
Resource Type:: Technical Report

Evaluation of nonspatial approaches and equation forms used to predict tree crown recession

Creator:: Hann, David W. and Hanus, Mark L.
Abstract:: Two nonspatial approaches for modeling tree crown recession (ΔHCB) were evaluated by using 5341 observations from Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco). The first approach applies a static height-to-crown-base (HCB) equation at the start and end of the growth period and uses the difference in these predictions as an estimate of...
Resource Type:: Article
Full Text:: predict tree crown recession David W. Hann and Mark L. Hanus Abstract: Two nonspatial approaches for

From forest plan development to implementation: how the forest service's publics are changing

Creator:: Wilhelm, Robert W.
Abstract:: Successful implementation of a forest plan depends in large part on 1) the quality of that plan, 2) the amount of public ownership in it and 3) the ability of the Forest Service to effectively involve the public in the process of putting it into action. The first two'points are...
Resource Type:: Capstone Project

Challenges to Gray Wolf Recovery in Washington, Oregon, and Northern California

Creator:: Kriz, Matthew A.
Abstract:: Gray wolves (Canis lupus) are the most socially polarizing species listed under the Endangered Species Act. Wildlife management practices at local, state, and federal levels include lethal control to resolve stakeholder and wolf conflicts as a last resort. There is little experimental evidence that lethal control is effective in this...
Resource Type:: Capstone Project
Full Text:: : Nicole Duplaix Daniel W. Edge Joe Kerkvliet Gray wolves (Canis lupus) are the most socially

Pathogenicity to Douglas-fir of Ophiostoma pseudotsugae and Leptographium abietinum, fungi associated with the Douglas-fir beetle

Creator:: Ross, Darrell W. and Solheim, Halvor
Abstract:: Pole-size Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) were inoculated with two fungi (Ophiostoma pseudotsugae (Rumb.) von Arx and Leptographium abietinum (Peck) Wingf.) associated with the Douglas-fir beetle (Dendroctonus pseudotsugae Hopkins) to evaluate their pathogenicity. Pruning the lowermost 30% of the live crown had no effect on host tree defenses. Inoculation with...
Resource Type:: Article
Full Text:: Leptographium abietinum, fungi associated with the Douglas-fir beetle Darrell W. Ross and Halvor Solheim

Unbalanced particle flux budgets in Crater Lake, Oregon: Implications for edge effects and sediment focusing in lakes

Creator:: Dymond, Jack, Collier, Robert W., McManus, James, and Larson, Gary L.
Abstract:: Flux estimates show that upward mixing of the deep-water nitrate pool accounts for more than 85% of the total new nitrogen input to the euphotic zone of Crater Lake. Because measured primary productivity (360 mg C m-2 d-1) is 10–30 times higher than a level supported solely by the input...
Resource Type:: Article
Full Text:: DYMOND, JACK, ROBERT COLLIER, JAMES MCMANUS, AND GARY L

Height-diameter equations for six species in the coastal regions of the Pacific Northwest

Creator:: Hanus, Mark L., Marshall, David D., and Hann, David W.
Abstract:: Three equations for predicting tree height as a function of diameter (outside bark) at breast height are presented for six species found in coastal regions of the Pacific Northwest. Foresters can use these “height–diameter” equations to avoid the time-consuming task of measuring heights of all individual trees in an inventory,...
Resource Type:: Technical Report
Full Text:: SPECIES IN THE COASTAL REGIONS OF THE PACIFIC NORTHWEST by Mark L Hanus David D Marshall David W Hann

Enhanced mortality equations for trees in the mixed conifer zone of Southwest Oregon

Creator:: Hann, David W., Hanus, Mark L., and Oregon State University. Forest Research Laboratory
Abstract:: 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...
Resource Type:: Technical Report
Full Text:: THE MIXED CONIFER ZONE OF SOUTHWEST OREGON by David W. Hann Mark L. Hanus Editing, word

Enhanced height-growth-rate equations for undamaged and damaged trees in southwest Oregon

Creator:: Hann, David W., Hanus, Mark L., and Oregon State University. Forest Research Laboratory
Abstract:: Equations for predicting the 5-yr height growth rate of a tree are presented for six conifer species from southwest Oregon. Equations for the combination of undamaged and damaged trees were estimated with weighted nonlinear regression techniques. These equations are being incorporated into the new southwest Oregon version of ORGANON, a...
Resource Type:: Technical Report
Full Text:: - RATE EQUATIONS FOR UNDAMAGED AND DAMAGED TREES IN SOUTHWEST OREGON by David W Hann Mark L Hanus

Enhanced diameter-growth-rate equations for undamaged and damaged trees in southwest Oregon

Creator:: Hann, David W., Hanus, Mark L., and Oregon State University. Forest Research Laboratory
Abstract:: Equations for predicting the 5-yr diameter-growth rate of a tree are presented for eight conifer and nine hardwood tree species from southwest Oregon. Equation parameters for undamaged and damaged trees combined were estimated by weighted nonlinear regression. The resulting equation for Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] explained more than 71%...
Resource Type:: Technical Report
Full Text:: -RATE EQUATIONS FOR UNDAMAGED AND DAMAGED TREES IN SOUTHWEST OREGON by David W Hann Mark L Hanus

ScholarsArchive@OSU

Conservation plans for the northern spotted owl and other forest management proposals in Oregon : the economics of changing timber availability

Evaluation of nonspatial approaches and equation forms used to predict tree crown recession

From forest plan development to implementation: how the forest service's publics are changing

Challenges to Gray Wolf Recovery in Washington, Oregon, and Northern California

Pathogenicity to Douglas-fir of Ophiostoma pseudotsugae and Leptographium abietinum, fungi associated with the Douglas-fir beetle

Unbalanced particle flux budgets in Crater Lake, Oregon: Implications for edge effects and sediment focusing in lakes

Height-diameter equations for six species in the coastal regions of the Pacific Northwest

Enhanced mortality equations for trees in the mixed conifer zone of Southwest Oregon

Enhanced height-growth-rate equations for undamaged and damaged trees in southwest Oregon

Enhanced diameter-growth-rate equations for undamaged and damaged trees in southwest Oregon

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