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Filtering by: Subject Logging, Skyline -- Cost effectiveness Remove constraint Subject: Logging, Skyline -- Cost effectiveness Degree Field Forest Engineering Remove constraint Degree Field: Forest Engineering

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A comparison of productivity for whole tree, tree length, and log length skyline thinning in 35 year old Douglas-fir stands of western Oregon

Creator:

Putnam, Nathan E.

Abstract:

Whole tree and tree length thinning are two alternatives which are likely to be more productive and may prove to be more cost effective than conventional log length thinning. The purpose of this study was to evaluate and compare log length, tree length, and whole tree thinning techniques in terms...

Resource Type:

Capstone Project
A simulation of the comparative costs and benefits of skyline strip thinning

Creator:

LeDoux, Chris B.

Abstract:

Strip thinning is recognized as a way of commercial thinning young-growth stands. strip thinning has been used worldwide. The purpose of this study was to explicitly evaluate the costs and benefits associated with skyline strip thinning in young Douglas-fir (Pseudotuqo menzesii Franco) stands in the Pacific Northwest and to compare...

Resource Type:

Dissertation
The Limber Jim case study : production and economics of a skyline system in a thinning/fuels reduction setting of a mixed conifer stand in the Blue Mountains of northeastern Oregon

Creator:

Doyal, James A.

Abstract:

Forest managers in the Blue Mountains, of northeastern Oregon are currently faced with vast areas of forests with health problems and high fuel loadings. These conditions resulted from a combination of insect infestations, past management practices and the elimination of fire from the local ecosystems. These forests are now overstocked,...

Resource Type:

Capstone Project
The effects of swinging and sorting with a skidder on yarding and loading efficiency in small diameter Douglas-fir

Creator:

McIntire, John Charles

Abstract:

This study evaluated the impact of using a rubber-tired skidder to keep the landing clear by sorting and decking the logs along the road prior to loading by a self-loading truck. The evaluation was accomplished through detailed time studies conducted on a Koller K-300 yarder, a Crown Super 3000 self-loader,...

Resource Type:

Capstone Project
Operational prebunching: a logger's application to reduce skyline thinning costs

Creator:

Zielinsky, Cary Russell

Abstract:

In the Pacific Northwest, loggers are faced with the problems of changing from logging old growth to second growth. This is due to the shrinking old growth timber supply and increased entry into the· second growth stands. Beuter (1 980) indicated that in western Oregon 70.2 percent by volume of...

Resource Type:

Capstone Project
Cable thinning in young forests with average DBH of 5-8 inches : a case study

Creator:

Gabrielli, Robert Michael

Abstract:

This paper describes the results of a time-study conducted near Grand Ronde, Oregon, to determine the production rates and total harvesting costs of a cable thinning in a young stand. The stand had a species mix of 48 percent western hemlock (Tsuga. heterophylla- (Raf.) Sarg.), 45 percent Douglas-fir (Pseudotsuga meuziesil...

Resource Type:

Capstone Project
An HP-75/HP--86 computer data collection system for recording and displaying logging equipment time studies

Creator:

Campbell, Thomas M.

Abstract:

Time studies of logging equipment are important to determine production rates, calculate logging costs and locate operating inefficiencies. However, using present time study techniques, they are also costly and time consuming to complete. This project will develop a new data gathering and storage technique using the HP-75 portable computer to...

Resource Type:

Capstone Project
A method of selection of cable harvesting machines for Vermont

Creator:

Stirler, Dennis John

Abstract:

There is much interest in the State of Vermont in cable harvesting. Since there are no time studies available for cable harvesting with various machines in Vermont, it is necessary to arrive at production and cost levels by a different method. The method chosen for this paper is made up...

Resource Type:

Capstone Project

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Academic Affiliation

Forest Engineering8

Advisor

Olsen, Eldon3
O'leary, John E.2
Kellogg, Loren D.1
Olsen, Eldon D.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1980 to 1998

View distribution

Committee Member

Adams, Paul1
Olsen, Eldon D.1

Creator

Campbell, Thomas M.1
Doyal, James A.1
Gabrielli, Robert Michael1
Ledoux, Chris B.1
Mcintire, John Charles1
more Creators »

Date

Date range begin – Date range end

Current results range from 1980 to 1997

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Decade

1990-19991
1980-19897

Degree Field

Forest Engineering[remove]8

Degree Level

Master's7
Doctoral1

Degree Name

Master of Forestry (M.F.)7
Doctor of Philosophy (Ph.D.)1

Language

English [eng]8

Non-Academic Affiliation

Oregon State University. Graduate School1

Peer Reviewed

No7

Resource Type

Capstone Project7
Dissertation1

Rights Statement

Copyright Not Evaluated8

Subject

Logging, Skyline -- Oregon -- Cost effectiveness -- Case studies2
Forest thinning -- Cost effectiveness1
Forest thinning -- Economic aspects -- Mathematical models1
Logging -- Machinery -- Cost effectiveness1
Logging, Skyline -- Blue Mountains (Or. and Wash.) -- Cost effectiveness -- Case studies1
more Subjects »

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