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Filtering by: Subject Commerce -- Environmental aspects Remove constraint Subject: Commerce -- Environmental aspects Degree Name Master of Forestry (M.F.) Remove constraint Degree Name: Master of Forestry (M.F.)

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Mass wasting in forested mountain topography

Creator:

Hu, Su Cherng

Abstract:

As the demands for forest products increase, additional timber harvesting operations can be expected on steep mountainous terrain, The resulting disruption of natural slope stability by man's disturbances (roadbuilding, logging and vegetative manipulation, etc.) may also accelerate mass movement processes in this terrain. Swanston (1969) defines mass movement as ".,...

Resource Type:

Capstone Project
A study of soil disturbance and compaction resulting from the use of ground-based logging vehicles in the Sierra Nevada

Creator:

Lysne, David Holtan

Abstract:

Some results of a study conducted in the Sierra Nevada Mountains west of Lake Tahoe are reported. The study measured soil impacts resulting from the use of a Caterpillar Tractor model D6D, a John Deere wheeled skidder model JD-640, and an FMC Corporation model FMC 21OCA logging vehicle. The three...

Resource Type:

Capstone Project
Identification of variables influencing residual stand damage from skyline thinning of young western hemlock-Sitka spruce stand

Creator:

Hargrave, Michael A.

Abstract:

Western hemlock and Sitka spruce are relatively thin- barked species and susceptible to damage during thinning operations. Damage to the wood allows decay-causing fungi to enter resulting in loss of merchantable volume at the time of final harvest. Cable yarding systems are needed for much of the thinning because most...

Resource Type:

Capstone Project
Soil compaction on a mechanized timber harvest operation in eastern Oregon

Creator:

Zaborske, Richard R.

Abstract:

The use of mechanized harvest equipment has been increasing as an economical method to harvest small diameter timber. While the use of this equipment is increasing, little is known about associated soil compaction. In particular, little information exists on soil compaction caused by feller--bunchers. This study measured soil compaction caused...

Resource Type:

Capstone Project
Shovel logging and soil compaction : a case study

Creator:

Floch, Rick F.

Abstract:

Shovel logging is a relatively new ground-based method of yarding tinther. It involves moving logs from stump to landing by successive swinging with a hydraulic excavator modified into a log loader by replacing the shovel bucket with a grapple. Loaders used in shovel yarding can weigh in excess of 100,000...

Resource Type:

Capstone Project

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Academic Affiliation

Forest Engineering4

Advisor

Froehlich, Henry A.1
O'leary, John E.1
Sessions, Julian1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1976 to 1989

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Committee Member

Froehlich, Henry A.2
Atkinson, William A.1
Johnson, Rebecca1
Kellogg, Loren D.1
Olsen, Eldon A.1

Creator

Floch, Rick F.1
Hargrave, Michael A.1
Hu, Su Cherng1
Lysne, David Holtan1
Zaborske, Richard R.1

Date

Date range begin – Date range end

Current results range from 1976 to 1989

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Decade

1980-19894
1970-19791

Degree Field

Forest Engineering4
Forestry1

Degree Level

Master's5

Degree Name

Master of Forestry (M.F.)[remove]5

Language

English [eng]5

Peer Reviewed

No5

Resource Type

Capstone Project5

Rights Statement

Copyright Not Evaluated5

Subject

Forest site quality -- Oregon1
Logging -- Environmental aspects1
Logging -- Environmental aspects -- Sierra Nevada Region (Calif. and Nev.)1
Logging -- Machinery -- Environmental aspects -- Washington (State) -- Olympic National Forest1
Logging -- Machinery -- Oregon1
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