Index Catalog // ScholarsArchive@OSU

The influence of stand structure and topography on growth, leaf area and efficiency of young Douglas-fir in the Oregon Coast Range

Creator:: Kaiser, Elisabeth H.
Abstract:: The relative influences of stand structure and topographic variation on volume growth, photosynthetic surface area, and stem growth efficiency were determined for six 17 to 23 year old well stocked stands in the central Oregon Coast Range. Plots were assigned to topographic classes (aspect, slope steepness, and slope position), by...
Resource Type:: Masters Thesis

Growth responses of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) to defoliation

Creator:: Osman, Khalid Amir
Abstract:: The effect of defoliation intensity and season on Douglas-fir growth were studied in three replications in the Siuslaw National Forest during 1988-1990. Four intensities of defoliation were applied once in either spring or summer 1988. Stem diameter and canopy area were linearly inversely proportional to the level of defoliation. Defoliation...
Resource Type:: Dissertation
Full Text:: Douglas-fir growth in the Oregon white oak type. J. of Forestry 64:735-738. Hill, R. R. 1917. Effects of

Genetic variation in shoot-growth patterns of Douglas-fir populations from southwest Oregon

Creator:: Kaya, Zeki
Abstract:: This study had three objectives: (1) to teat the hypothesis that multiple flushing of the terminal shoot (intermittent growth pattern) in Douglas-fir seedlings (Pseudotsuca menziesii var. menziesii) has an adaptive significance, especially in inland populations from the drier regions in southwest Oregon; (2) to evaluate the genetic and adaptive consequences...
Resource Type:: Dissertation

Interacting effects of stand density, site factors, and nutrients on productivity and productive efficiency of Douglas-fir plantations in the Oregon Cascades

Creator:: Velazquez-Martinez, Alejandro
Abstract:: The objectives of this research were to study: a) the effect of thinning and treatments consisting of pruning and multinutrient fertilization on aboveground biolnass increment, growth efficiency (GE), and foliar nutrients; b) the influence of topoedaphic variables (soil nutrients, slope, aspect, and rock content) and foliar nutrients on both leaf...
Resource Type:: Dissertation

Natural regeneration of Douglas-fir in uneven-aged stands in southwest Oregon

Creator:: Gerstein, Jared M.
Abstract:: The response to various levels of stand density by natural Douglas-fir regeneration, shrub and sprouting hardwood species was studied in the mixed-evergreen-forests of southwest Oregon. Partial-cut old growth (harvested 22-31 years prior) and thinned evenaged (harvested 9-17 years prior) stand types were used as surrogates for intentionally managed uneven-aged stand...
Resource Type:: Masters Thesis

Effects of soil surface shading, mulching and vegetation control on Douglas-fir seedling growth and microsite water partitioning

Creator:: Flint, Lorraine E.
Abstract:: A two year study with 500 seedlings was conducted in the harsh, drought prone southwest Oregon environment to assess the effects of 12 soil surface shading, mulching and vegetation control techniques on soil temperature and moisture environments and seedling growth. Treatments modified, to various degrees, soil surface temperatures, reduced soil...
Resource Type:: Masters Thesis
Full Text:: control on Douglas-fir seedling growth and microsite water partitioning AN ABSTRACT OF THE THESIS OF

Nonlinear models of height growth for Douglas-fir in southwestern Oregon

Creator:: Scrivani, John A.
Abstract:: A review is made of methods which assess the bias and non-normality of parameter estimates and predictions obtained with nonlinear regression. Particular emphasis is placed upon curvature measures of nonlinearity, related measures of parameter and prediction bias, and the effects of reparameterizations. Alternate models of individual tree height growth are...
Resource Type:: Dissertation

Construction of regression models for predicting crown development in southwestern Oregon Douglas-fir

Creator:: Maguire, Douglas A. (Douglas Alan)
Abstract:: A branch mortality dating technique and whorl sampling strategy were implemented to model five-year crown recession from data collected on temporary plots. Twenty-eight Douglas-fir from two levels-of-growing- stock studies in Oregon and Washington were first dissected to validate the proposed dating technique and assess alternative sampling strategies. Branch mortalities in...
Resource Type:: Dissertation

Growth and structure of three adjacent 22 year-old Douglas-fir stands in the Oregon Coast Range

Creator:: Espinosa Bancalari, Miguel A.
Abstract:: In the Oregon Coast Range, total biomass and biomass increment, leaf area, the relationship between leaf area and sapwood area, and patterns of growth and form of individual trees, were studied in 40 Douglas-fir (Pseudotsuga menziesfi (Mirb.) Franco) trees from three adjacent 22 year-old plantations that had developed at different...
Resource Type:: Dissertation

The effects of thinning on stand and tree growth in a young, high site Douglas-fir stand in western Oregon

Creator:: Marshall, David D.
Abstract:: The Levels-of-Growing-Stock Studies in Douglas-fir is a regional cooperative to investigate the effects of levels of growing stock on young stand growth. The Hoskins installation, in western Oregon, was established in a dense, high site natural stand at total age 20 years. The initial thinning resulted in an immediate 131...
Resource Type:: Dissertation

ScholarsArchive@OSU

The influence of stand structure and topography on growth, leaf area and efficiency of young Douglas-fir in the Oregon Coast Range

Growth responses of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) to defoliation

Genetic variation in shoot-growth patterns of Douglas-fir populations from southwest Oregon

Interacting effects of stand density, site factors, and nutrients on productivity and productive efficiency of Douglas-fir plantations in the Oregon Cascades

Natural regeneration of Douglas-fir in uneven-aged stands in southwest Oregon

Effects of soil surface shading, mulching and vegetation control on Douglas-fir seedling growth and microsite water partitioning

Nonlinear models of height growth for Douglas-fir in southwestern Oregon

Construction of regression models for predicting crown development in southwestern Oregon Douglas-fir

Growth and structure of three adjacent 22 year-old Douglas-fir stands in the Oregon Coast Range

The effects of thinning on stand and tree growth in a young, high site Douglas-fir stand in western Oregon

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Conference Name

Conference Section/Track

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search