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Filtering by: Contributor advisor sim Berg, Alan B. Remove constraint Contributor advisor sim: Berg, Alan B.

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The estimation and significance of sapwood basal area in young Douglas-fir stands

Creator:

Dolan, Linda Sutliff

Abstract:

The relationship of sapwood basal area to basal area was examined on stands of young-growth Douglas-fir. Through non-destructive sampling, sapwood basal area was quantified on four different thinning intensities and one control (unthinned) treatment. Emphasis was on testing a sampling method and evaluating variations in the sapwood component as a...

Resource Type:

Masters Thesis
Comparative development of a thinned and a natural Douglas-fir stand from 45 to 60 years of age

Creator:

Groman, William A.

Abstract:

An understanding of the dynamics of individual tree and stand growth, development, and structural patterns during the immature formative years of a commercial species is essential to determine correct thinning practices necessary to attain desired objectives. This study compared a natural, medium-site Douglas-fir stand and an adjacent similar stand released...

Resource Type:

Dissertation
The effect of thinning intensity upon understory growth and species composition in an Oregon Coast Range Pseudotsuga menziesii stand

Creator:

Witler, Jerome Warren

Abstract:

Cover, frequency, and biomass of under story vegetation were estimated on 14 study plots in a central Oregon Coast Range Pseudotsuga menziesii stand. The treatments included a control and three different thinning intensities. Basal area of active growing stock, defined as young-growth P. menziesii with diameter at breast height of...

Resource Type:

Masters Thesis
Growth behavior of Douglas-fir reproduction in the shade of managed forest in the interior Coast Range of Oregon

Creator:

Del Rio, Ernest

Abstract:

During the past 20 years, repeated thinning of a Douglas-fir forest, now 65 years old, has allowed desired limits of basal area to be maintained. In the process, the understory environment has altered sufficiently to allow Douglas-fir reproduction to establish in abundance. The forest is located on the east side...

Resource Type:

Masters Thesis
The quantity and composition of ground vegetation in different light environments under a Douglas-fir, Pseudotsuga menziesii (Mirb) Franco, stand in the Oregon Coast Range

Creator:

Temmes, Eeva Karin Marianna

Abstract:

The relationship between ground vegetation and light intensity under a 60 to 65-year-old Douglas-fir forest was investigated. Biomass and height of ground vegetation were measured and cover was estimated on small sample units (30 centimeters in diameter) on permanent research plots, one-acre in size, on the George T. Gerlinger Experimental...

Resource Type:

Masters Thesis
Silviculture-ecology of three native California hardwoods on high sites in north central California

Creator:

McDonald, Philip M.

Abstract:

Pacific madrone, tanoak, and California black oak are the most economically promising native California hardwoods. Volume and value data indicate upward trends in growing stock levels and prices received for their products. These trends are likely to continue. They suggest research is particularly needed for: (1) seed fall and regeneration,...

Resource Type:

Dissertation
Some silvicultural impacts of Phellinus weirii on a managed forest in the interior Coast Range of Oregon

Creator:

Lawson, Thomas Taylor

Abstract:

Phellinus weirii, the cause of laminated root rot, is considered the most destructive root rot of Douglas-fir, but little is known about the damage it causes, to a forest. The objective of this study was to determine silvicultural impacts of P. weirii on a managed forest. A survey located and...

Resource Type:

Masters Thesis
The characteristics and dynamics of snags in Douglas-fir forests of the Oregon Coast Range

Creator:

Cline, Steven Paul

Abstract:

Snags, standing dead trees, are used by many species of wildlife. Despite the importance of snags their basic ecology remains unknown. Some forest management practices eliminate snags from the forest with a concomitant effect upon snag-dependent wildlife. My objective was to describe the density, spatial distribution, and physical character of...

Resource Type:

Masters Thesis

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Academic Affiliation

Forest Science6
Forest Management2

Advisor

Berg, Alan B.8

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1972 to 1981

View distribution

Committee Member

Chilcote, William1
Chilcote, William W.1
Denison, William1
Dilworth, J. Richard1
Ferrell, William1
more Committee Members »

Creator

Cline, Steven Paul1
del Rio, Ernest1
Dolan, Linda Sutliff1
Groman, William A.1
Lawson, Thomas Taylor1
more Creators »

Date

Date range begin – Date range end

Current results range from 1972 to 1981

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Decade

1980-19891
1970-19797

Degree Field

Forest Science6
Forest Management2

Degree Level

Master's6
Doctoral2

Degree Name

Master of Science (M.S.)6
Doctor of Philosophy (Ph.D.)2

Language

English [eng]8

Non-Academic Affiliation

Oregon State University. Graduate School8

Peer Reviewed

No8

Resource Type

Masters Thesis6
Dissertation2

Rights Statement

Copyright Not Evaluated8

Subject

Douglas fir3
Douglas fir -- Diseases and pests1
Douglas fir -- Oregon1
Forest ecology -- California1
Forest thinning1
more Subjects »

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