Index Catalog // ScholarsArchive@OSU

The timber harvesting behavior of family forest owners

Creator:: Butler, Brett J.
Abstract:: To increase our understanding of the timber harvesting behavior of family forest owners, I developed theoretical and empirical timber harvesting models for family forest owners in the southeastern United States. An individual-choice model was the basis for the models. Family forest owners were modeled as utility-maximizers who made harvesting decisions...
Resource Type:: Dissertation
Full Text:: Brett J. Butler A DISSERTATION submitted to Oregon State University in partial fufi1lment of the

Characterization of fire effects on forest ecosystems in the Tillamook Forest, Oregon

Creator:: Chen, Shu-Huei
Abstract:: From the 1920's through 1951 several severe fires occurred in the predominantly conifer forest ecosystems of the northern Oregon Coast Range. Of the 211,151 ha. of mapped area, 57 percent was burned. The effects of frequent fires with high severity on forest ecosystems over time at the landscape level is...
Resource Type:: Masters Thesis
Full Text:: conditions appear to be closely tied to catastrophic fire events. Since 1911, the Oregon Board of Forestry

Growth and yield, structure, composition, and soil compaction in a Western Oregon Douglas-fir forest after 35 years of modified selection thinning

Creator:: Stringer, Darin S.
Abstract:: Modified selection thinning has been utilized by some non-industrial foresters in Douglas-fir forests of Western Oregon and Washington for at least 35 years. This silvicultural strategy has not been tested, but has often been associated with reduced volume production and other undesirable effects. It continues to be used on many...
Resource Type:: Masters Thesis

Disturbance and landscape history as a reference for evaluating forest management effects at a regional scale : examples from the Coast Range of Oregon, USA

Creator:: Nonaka, Etsuko
Abstract:: History is an invaluable source of information to understand and evaluate management influences on contemporary ecosystems and landscapes. The first two chapters (Chapters 2 and 3) explored the concept of historical range of variability (HRV) in landscape structure and stand structure using a stochastic fire simulation model to simulate presettlement...
Resource Type:: Masters Thesis
Full Text:: Etsuko Nonaka A THESIS submitted to Oregon State University in partial fulfillment of the

A new index for describing the structural complexity of forests

Creator:: Zenner, Eric K.
Abstract:: Despite the critical ecological roles of structural features in forests, ecologically relevant quantitative measures of structure that allow comparisons among forest stands are still limited. A new index, the structural complexity index (SCI), was developed to characterize and compare the structural complexity of different forests. Point patterns of stem-mapped trees...
Resource Type:: Dissertation

Songbird populations of precommercially thinned and unthinned stands of ponderosa pine in east-central Washington

Creator:: Putnam, Betsy June
Abstract:: Populations of breeding birds and forest composition and structure were examined in preconimercially thinned and unthinned ponderosa pine (Pinus ponderosa Laws.) stands in east-central Washington. Stands were composed of predominantly ponderosa pine with a multi-aged structure made up of small even-aged clumps. Thinning reduced the density and foliage volume of...
Resource Type:: Masters Thesis

Predators of hemlock woolly adelgid in northwestern Oregon

Creator:: Byrkit, Maggie K.
Abstract:: Hemlock woolly adelgid, Adelges tsugae Annand, is a serious threat to eastern hemlock, Tsuga canadensis Carriere, in the eastern United States. Infestations of A. tsugae are spreading rapidly and tree mortality caused by the insect is increasing yearly. As part of an integrated management approach, a classical biological control program...
Resource Type:: Masters Thesis
Full Text:: permanent collection of Oregon State University libraries. My signature below authorizes release of my

Habitat relationships of small terrestrial vertebrates and invertebrates in managed forests in the southern Oregon Cascades

Creator:: McDade, Kirsten Ayn
Abstract:: Silviculture systems that involve commercial thinning may provide higher quality wildlife habitat than traditional clearcut systems, yet such systems have not been vigorously tested. This prospective study examined forest floor animal abundance and habitat relationships under three different silviculture conditions: clearcuts, commercial thins, and uncuts. Eighteen stands, six per treatment,...
Resource Type:: Masters Thesis
Full Text:: submitted to Oregon State University in partial fulfillment of the requirements for the degree of

The effects of stand density on the growth and microclimate of young Douglas-fir stands

Creator:: Woodruff, David R.
Abstract:: My objectives were to investigate the correlation of height and diameter growth in young Douglas-fir (Pseudotsuga menziesii) plantations with stand density, and to determine the effects of stand density on the canopy boundary layer conductance (g[subscript]ac) and microclimate characteristics of young Douglas-fir plantations. I measured annual height (h) and diameter...
Resource Type:: Masters Thesis
Full Text:: submitted to Oregon State University In partial fulfillment of the requirements for the degree of

Response of small mammal mycophagy to varying levels and patterns of green-tree retention in mature forests of western Oregon and Washington

Creator:: Jacobs, Katherine M.
Abstract:: The Demonstration of Ecosystem Management Options (DEMO) study is a large-scale, multi-year, interdisciplinary project examining the effects of various levels and patterns of green-tree retention on multiple forest features. Six retention levels and patterns were examined and replicated across six blocks of predominately Douglas-fir forested land in western Oregon and...
Resource Type:: Masters Thesis
Full Text:: of Western Oregon and Washington. by Katherine M. Jacobs A THESIS submitted to Oregon State

ScholarsArchive@OSU

The timber harvesting behavior of family forest owners

Characterization of fire effects on forest ecosystems in the Tillamook Forest, Oregon

Growth and yield, structure, composition, and soil compaction in a Western Oregon Douglas-fir forest after 35 years of modified selection thinning

Disturbance and landscape history as a reference for evaluating forest management effects at a regional scale : examples from the Coast Range of Oregon, USA

A new index for describing the structural complexity of forests

Songbird populations of precommercially thinned and unthinned stands of ponderosa pine in east-central Washington

Predators of hemlock woolly adelgid in northwestern Oregon

Habitat relationships of small terrestrial vertebrates and invertebrates in managed forests in the southern Oregon Cascades

The effects of stand density on the growth and microclimate of young Douglas-fir stands

Response of small mammal mycophagy to varying levels and patterns of green-tree retention in mature forests of western Oregon and Washington

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