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Filtering by: Subject Forests and forestry -- Measurement -- Data processing Remove constraint Subject: Forests and forestry -- Measurement -- Data processing Advisor Paine, David P. Remove constraint Advisor: Paine, David P.

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Calculation of tree volume and surface area by the height-accumulation method

Creator:

Arney, James Douglas, 1941-

Abstract:

This study was initiated to determine the accuracy and limits of the height-accumulation method of measuring tree volume and surface area for Pacific Northwest second-growth trees. Thirty trees were selected from various thinning treatments in a 55 year old Douglas-fir forest. Each tree was measured with the highly accurate Barr...

Resource Type:

Masters Thesis
A computer simulation study of the relative efficiency of several forest sampling techniques as influenced by the spatial distribution of trees found in five major forest types of the Pacific Northwest

Creator:

Payandeh, Bijan

Abstract:

This study was initiated to determine the relative efficiency of systematic, stratified and simple random sampling for crown area and tree frequency estimation of five of the major forest types found in the Pacific Northwest. Several of the more common methods of estimating spatial distribution coefficients were evaluated. Finally the...

Resource Type:

Dissertation
Photogrammetric uses of a new-generation analytical stereoplotter in forestry

Creator:

Kiser, James D. (James Donald)

Abstract:

The development of personal computer software coupled to an analytical stereoplotter allows major gains in efficiency and accuracy in a number of forestry related subjects. This thesis describes the operation of a system developed by Carto Instruments. This thesis demonstrates how area estimates might be made in a systematic way...

Resource Type:

Masters Thesis
A preliminary investigation into the use of the tarif system and three tree selection methods for obtaining Douglas-fir stand and stock tables from large-scale aerial photography

Creator:

McCadden, Richard Jay

Abstract:

As a preliminary step toward the establishment of a 70 mm. aerial photo timber inventory system capable of generating accurate stand tables, stock tables, and gross volume estimates, this project focuses on the development of a system which (1) eliminates the need to measure tree height on the photos through...

Resource Type:

Masters Thesis

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Academic Affiliation

Forest Management3
Forest Resources1

Advisor

Paine, David P.[remove]4

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1968 to 1992

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Committee Member

Bell, John F.1
Harrington, Tim1
Moore, Thomas C.1
Peterson, Roger G.1
Sessions, John1
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Creator

Arney, James Douglas, 1941 1
Kiser, James D. (James Donald)1
Mccadden, Richard Jay1
Payandeh, Bijan1

Date

Date range begin – Date range end

Current results range from 1967 to 1991

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Decade

1990-19991
1980-19891
1960-19692

Degree Field

Forest Management3
Forest Resources1

Degree Level

Master's3
Doctoral1

Degree Name

Master of Science (M.S.)3
Doctor of Philosophy (Ph.D.)1

Language

English [eng]4

Non-Academic Affiliation

Oregon State University. Graduate School4

Peer Reviewed

No2

Resource Type

Masters Thesis3
Dissertation1

Rights Statement

Copyright Not Evaluated4

Subject

Aerial photography in forestry2
Forests and forestry -- Measurement2
Analytical plotters (Photogrammetry)1
Forest surveys -- Data processing1
Forests and forestry -- Measurement -- Computer programs1

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