Index Catalog // ScholarsArchive@OSU

Using Remote Sensing and Process-based Growth Modeling to Predict Forest Productivity Across Western Oregon

Creator:: McAdam, Erick
Abstract:: Accurate measurement of forest productivity is fundamental to understand the carbon balance of forested ecosystems. Recent changes in climate highlight the importance of developing methods to measure forest productivity so that sound economic and environmental decision can be made. Efforts to measure forest productivity across the landscape using remote sensing...
Resource Type:: Masters Thesis
Full Text:: in a study of more than 100 plantations of Douglas‐fir scattered over much of western Oregon. While

Comparing structure and development of Douglas-fir old-growth, plantations, and young natural forests in western Oregon

Creator:: Dowling, Christopher D.
Abstract:: Ages, diameter growth, density, tree size, and species were studied in old-growth, plantation, and young natural Douglas-fir stands in three areas in western Oregon: the western and eastern Coast Range and the western Cascades. The purpose was to compare the development of these three stand types and to determine whether...
Resource Type:: Masters Thesis

The combined effects of vegetation control and seedling size class on Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedling productivity on a site in Oregon

Creator:: Lefebvre, Robert F.
Abstract:: Controlling competing vegetation with the application of herbicides and increased seedling size at planting has been shown to increase seedling survival and growth. These two important reforestation tools have often been studied independently of each other, limiting comparisons that can be made between them. This study utilized a factorial treatment...
Resource Type:: Masters Thesis
Full Text:: Class on Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) Seedling Productivity on a Site in Oregon

Temporal effect of vegetation management on growth and wood quality of conifers in a western Oregon plantation

Creator:: Goracke, Heidi S. Roe
Abstract:: Concern over the increasing proportion of juvenile wood grown in second growth plantations has led to a large amount of research on the effects of common silvicultural practices on wood quality. Lacking is research on the effect of timing and duration of vegetation control on wood quality near the pith...
Resource Type:: Masters Thesis
Full Text:: Effect of Vegetation Management on Growth and Wood Quality of Conifers in a Western Oregon Plantation

Impact of Climate and Disturbance on the Formation of Earlywood and Latewood in Douglas-fir at the Salal Fields Study Site

Creator:: Gourley, Derek M. F.
Abstract:: Wood density is controlled to a large extent by the relative widths of earlywood and latewood in the stem, but the mechanisms controlling these amounts are poorly understood in coastal Douglas-fir. To understand the role of climatic factors, one hundred and thirty-six increment cores were collected and measured from the...
Resource Type:: Masters Thesis
Full Text:: from the Salal Fields study site located in Western Oregon. Increment cores were collected from the

Identifying site characteristics that explain variation in Douglas-fir site productivity and stem form

Creator:: Magalska, Lauren E.
Abstract:: Foresters care about site productivity and stem quality in Douglas-fir plantations for many reasons. The profitability of forest land and the economic returns on silvicultural investments are directly related to site productivity. Thus, understanding the relationships among Douglas-fir productivity, stem form and site characteristics is important economically. My objective was...
Resource Type:: Masters Thesis
Full Text:: variation in Douglas- fir productivity and stem form throughout western Oregon and Washington by using

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

Effects of residual trees on growth of young to mature Douglas-fir and western hemlock in the western central Oregon Cascades

Creator:: Zenner, Eric K.
Abstract:: The purpose of this study was to assess how growth of young to mature Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) and western hemlock (Tsuga heterophylla (Raf.) Sar.) in mixed stands was influenced by the presence of residual trees. Fourteen paired plots with and without residual trees were examined in a retrospective...
Resource Type:: Masters Thesis

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

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

ScholarsArchive@OSU

Using Remote Sensing and Process-based Growth Modeling to Predict Forest Productivity Across Western Oregon

Comparing structure and development of Douglas-fir old-growth, plantations, and young natural forests in western Oregon

The combined effects of vegetation control and seedling size class on Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedling productivity on a site in Oregon

Temporal effect of vegetation management on growth and wood quality of conifers in a western Oregon plantation

Impact of Climate and Disturbance on the Formation of Earlywood and Latewood in Douglas-fir at the Salal Fields Study Site

Identifying site characteristics that explain variation in Douglas-fir site productivity and stem form

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

Effects of residual trees on growth of young to mature Douglas-fir and western hemlock in the western central Oregon Cascades

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

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

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