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Filtering by: Subject Crawler tractors -- Oregon Remove constraint Subject: Crawler tractors -- Oregon Language English [eng] Remove constraint Language: English [eng]

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Two thinnings of douglas-fir with crawler tractors : time differences

Creator:

Kangur, Rudolf and Oregon State University. Forest Research Laboratory

Abstract:

Two intermediate cuttings were made in a Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stand on the Wilark forest management research area in northwestern Oregon. Age of trees in the stand varied from 47 to 62 years at the first cutting. Crawler tractors were used in both extractions. In the first cutting,...

Resource Type:

Technical Report

Full Text:

, saw- logs and poles and piling were taken to the skid road by crawler tractor. A choker setter worked
Two thinnings of Douglas-fir with crawler tractors : time differences

Creator:

Kangur, Rudolf and Oregon State University. Forest Research Laboratory

Resource Type:

Technical Report

Full Text:

, saw- logs and poles and piling were taken to the skid road by crawler tractor. A choker setter worked
Adapting swinging booms to crawler tractors for hardwood and other small log operations

Creator:

Bullard, Howard

Resource Type:

Undergraduate Thesis

Full Text:

{' /$?P SCHOOL OF IORES1RI OREGON STATE COLLEGE , mRlfAtrl$, sREGol[ .l ISEBCIDI}OTIOS thig la not
Skidding and bunching tractor

Creator:

Fobes, E. W. and Forest Products Laboratory (U.S.)

Resource Type:

Technical Report

Full Text:

E. W. Fobes May 1951 OCT 9 1951 Figure 1.--Skidding tractor with
Measuring the non-pecuniary costs of triple trailer operation in Oregon : a contingent valuation approach

Creator:

Bambe, Anita

Abstract:

The purpose of this study is to measure the costs of the perceived safety threat from triple trailer operation in Oregon. This is done using the political referendum model of a common non-market valuation technique, contingent valuation. Specifically, the average cost of allowing triples will be found so that comparison...

Resource Type:

Masters Thesis

Full Text:

in Oregon : a contingent valuation approach An Abstract of The Thesis of Anita L. Bambe for the
Costs of operating various sizes and types of tractors in Marion County, Oregon

Creator:

Oregon State University. Agricultural Experiment Station, Green, Warren J., and Mumford, D. Curtis (Dwight Curtis), 1900-

Abstract:

Published April 1965. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog

Resource Type:

Technical Report

Full Text:

potential tractor horsepower per farm. Hours of use per horsepower Gas wheel 30- Deise/ crawler 20 10- I

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Academic Affiliation

College of Forestry2
Economics1

Advisor

Mcmullen, B. Starr1

Commencement Year

19951

Creator

Kangur, Rudolf2
Oregon State University. Forest Research Laboratory2
Bambe, Anita1
Bullard, Howard1
Fobes, E. W.1
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1990-19991
1960-19693
1950-19591
1930-19391

Degree Field

Economics1

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Bachelor's1
Master's1

Degree Name

Master of Science (M.S.)1

File Format

application/pdf3

Language

English [eng][remove]6

Non-Academic Affiliation

Oregon State University. Agricultural Experiment Station1
Oregon State University. Graduate School1

Peer Reviewed

No1

Resource Type

Technical Report4
Masters Thesis1
Undergraduate Thesis1

Rights Statement

Copyright Not Evaluated6

Subject

Crawler tractors -- Oregon2
Douglas fir -- Harvesting -- Oregon2
Forest thinning -- Oregon2
Crawler tractors1
Crawler tractors -- Customizing1
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