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Filtering by: Advisor Engle, John F. Remove constraint Advisor: Engle, John F. Degree Field Forest Management Remove constraint Degree Field: Forest Management

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Silvicultural and economic aspects of removal of scattered overmature trees from a well-stocked pole stand in the Sitka sprucewestern hemlock type

Creator:

Williamson, Richard L.

Resource Type:

Masters Thesis

Full Text:

. Grateful acknowledgement is made of the ncour agement and timely suggestions offered by Professor John F
An analysis of the weighted least squares technique as a method for the construction of tree volume tables

Creator:

Munro, Donald Deane

Abstract:

The purpose of this thesis was to investigate the use of weights in least squares regression volume table construction and thereby to determine the importance of the assumption of homogeniety of tree volume variance. Several weighted and unweighted linear regression equations were investigated using data from 340 Douglas-fir Pseudotsuga menziesii...

Resource Type:

Masters Thesis
Yields of repeated high and low commercial thinnings of immature coastal Western hemlock

Creator:

Hilt, Donald E.

Abstract:

Commercial thinnings in a 50-year-old stand of nearly pure, well stocked, even-aged western hemlock (Tsuga heterophylla) on the Hemlock Experimental Forest near Hoquiam, Washington, began in 1952 and ended in 1968. The experiment consisted of two replications of four different thinning treatments, high and low thinning, both at frequent and...

Resource Type:

Masters Thesis
The use of a three-stage sample to estimate the effect of commercial thinning on the growth of two stands of Douglas-fir

Creator:

Graham, Joseph Nelson

Abstract:

A three stage sale was taken of two high-site, second growth Doug1as-fir (Pseudtsuga menziesii) stands located in the extreme northwestern portion of the Oregon Coast Range. Permanent plots were established during the first stage variable-plot cruise. A Hartley- List sample, taken from the first stage Douglas-fir in trees, selected second...

Resource Type:

Masters Thesis
Growth growing-stock relationships in young Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)

Creator:

Sales Luis, Jaime Fernando

Abstract:

In the thinning theory, the hypothesis that the stand growth is unaffected by the density over a broad range of densities is generally accepted today. In this study three different measures of stand density were used in basal area growth and volume growth multiple regressions in even-aged managed stands, searching...

Resource Type:

Masters Thesis
Growth and yield of unmanaged stands of quaking aspen on the upper Navajo River in the Rocky Mountains of southwest Colorado

Creator:

Clendenen, Gary Wayne

Abstract:

An average stand diameter yield table and a diameter growth per decade table are presented for unmanaged stands of quaking aspen in southwest Colorado. The yield table presents yields per tree for the following utilization standards: 1. total cubic-foot volume minus the stump, 2. cubic-foot volume to a 4-inch top,...

Resource Type:

Masters Thesis
Site index equations for mountain hemlock on three habitat types in the Central Oregon Cascades

Creator:

Johnson, Gregory P.

Abstract:

Site index and height growth equations for mountain hemlock (Tsuga mertensiana (Bong.) Carr.) were developed from 37 trees located in the Deschutes Nationa1 Forest. Initial analysis indicated the need for stratification by habitat type. Preliminary community classifications were used to develop three strata for the study. Two approaches to model...

Resource Type:

Masters Thesis
Geometrical considerations affecting the determination of basal area growth by increment boring methods

Creator:

Iles, Kimberly

Abstract:

The purpose of this study was to examine the geometry of enclosed circles in order to predict the probable effects of increment boring methods used in determining basal area growth. Of specific concern was the comparison of areas derived from sets of borings taken from opposite sides of the tree...

Resource Type:

Masters Thesis
Sapwood basal area as an estimator of individual tree growth

Creator:

Newman, Kenneth

Abstract:

The effectiveness of sapwood basal area as an estimator of individual tree basal area growth was tested on several young, even-aged Douglas-fir stands, stocked at varying densities. For all densities, ranging from partially open-grown to very overstocked stands, the null hypothesis that there was no association between sapwood basal area...

Resource Type:

Masters Thesis
A proposed sampling technique and electronic data processing program for reproduction surveys in forest plantations

Creator:

Schutt, Walter W.

Abstract:

The purpose of this thesis is to determine if the Oregon State Forestry Department's stocking survey system can be applied to planted acres as well as to seeded acres. Two computer programs were developed into a primary program. One produced a new stocking curve adapted to hand planting patterns, and...

Resource Type:

Masters Thesis

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Academic Affiliation

Forest Management17

Advisor

Bell, John F.17

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1965 to 1986

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Committee Member

Paine, David P.4
Petersen, Roger G.2
Thomas, David2
Brodie, J. Douglas1
Faulkenberry, David1
more Committee Members »

Creator

Clendenen, Gary Wayne1
Demars, Donald James1
Eng, Helge1
Graham, Joseph Nelson1
Hilt, Donald E.1
more Creators »

Date

Date range begin – Date range end

Current results range from 1964 to 1985

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Decade

1980-19897
1970-19796
1960-19694

Degree Field

Forest Management[remove]17

Degree Level

Master's17

Degree Name

Master of Science (M.S.)17

Language

English [eng]17

Non-Academic Affiliation

Oregon State University. Graduate School17

Peer Reviewed

No12

Resource Type

Masters Thesis17

Rights Statement

Copyright Not Evaluated17

Subject

Douglas fir3
Forest thinning3
Forests and forestry -- Mensuration2
Trees -- Growth2
Aspen1
more Subjects »

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