Index Catalog // ScholarsArchive@OSU

A case study of prebunching and swinging : a thinning system for young forests

Creator:: Kellogg, Loren D.
Abstract:: Commercial thinning young growth forests is an increasingly important silvicultural technique for improving second growth management of Douglas-fir stands. Research aimed at advancing the efficiency of skyline logging operations in small wood timber stands is essential in order to make thinning these young stands economical. The purpose of this study...
Resource Type:: Capstone Project

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

Thinning aged Douglas-fir : an analysis of mobilization costs and a log bucking strategy for revenue improvement

Creator:: Pilkerton, Stephen J.
Abstract:: Contract harvest operations have become the preferred approach to reducing the largest cost component of timber production through free market competition amongst logging contractors bidding or negotiating for work. The goal of this research was to investigate economic components of harvesting operations not previously studied for steep slope thinning harvests...
Resource Type:: Dissertation
Full Text:: Improvement Abstract approved: _____________________________________________________________ Loren D

Logging planning, felling, and yarding costs in five alternative skyline group selection harvests

Creator:: Edwards, Richard M.
Abstract:: Alternative silvicultural systems, such as group selections, have recently come into vogue in the U.S. Pacific Northwest in response to political and public pressure against traditional, even-aged silviculture. There is also interest in silvicultural systems for multiple resources. Little is known about planning logistics, operational requirements, and harvest costs for...
Resource Type:: Capstone Project

The DEERHORN case study: a production and cost analysis of a single-grip harvester and small cable yarder performing a thinning/salvage operation in eastern Oregon.

Creator:: Brown, Cameron G.
Abstract:: Land managers in the Blue Mountains of eastern Oregon are currently faced with large areas of forest with health problems and extreme levels of fuel loading in the stand and on the forest floor. These conditions resulted from a combination of insect infestations, past management practices and the elimination of...
Resource Type:: Capstone Project

Analysis and operational considerations of biomass extraction on steep terrain in western Oregon

Creator:: Flint, Benjamin R.
Abstract:: The development of bioenergy from biomass has dominated the minds of forest engineering researchers over the last decade. One of the main themes that has been generated from that research is that bioenergy from biomass has major operational hurdles to overcome before becoming economically feasible. More directly, the impact of...
Resource Type:: Masters Thesis
Full Text:: Extraction on Steep Terrain in Western Oregon Abstract approved: Loren D. Kellogg The development of

An integrated study of mechanical forest fuel reduction: quantifying multiple factors at the stand level

Creator:: Bolding, Michael Chad, 1977-
Abstract:: Recent catastrophic wildfires have forced the forest management community to develop new strategies for reducing forest fuels. Tightly spaced understory trees often create a fire ladder allowing surface fires to encroach into the crowns of overstory trees. This situation can lead to intensive, catastrophic, stand-replacement forest fires. Mechanical removal or...
Resource Type:: Dissertation
Full Text:: possible. It is a pleasure to recognize Dr. Loren Kellogg for his exceptional guidance and leadership

A decision framework for the implementation of appropriate logging practices in developing countries : case study -- Ethiopia

Creator:: Spong, Ben
Abstract:: In many areas of the developing world, the continued overexploiting forest resources has the potential to have significant detrimental impacts be placed on sustainable forest management (SFM) can help communities and organizations responsibly manage and utilize the remaining forests over the long term. Ethiopia’s forest lands provide tangible benefits from...
Resource Type:: Dissertation
Full Text:: : ______________________________________________ Loren D. Kellogg In many areas of the developing world, the

Production and cost analysis of a helicopter thinning operation in the Oregon Coast Range and comparison to HELIPACE production estimates

Creator:: Born, Robert Gregory
Abstract:: With increasing environmental concerns, short harvesting seasons, salvage logging needs, and limited road access, helicopter yarding is becoming attractive to many land managers. Most helicopter yarding has occurred on clearcut or evenaged management areas containing large, valuable timber. Very little helicopter yarding has occurred in stands of smaller, less valuable...
Resource Type:: Capstone Project

Soil comopaction study on a cut-to-length mechanized harvesting system

Creator:: Armlovich, David
Abstract:: This study looked at the soil compaction effects resulting from a cut-to-length harvest system on an area in the western Cascade Range of Oregon. The cut-to-length harvest system is a mechanized system in which trees are fell, deliinbed, and bucked into short log lengths by a mechanical harvester. Logs are...
Resource Type:: Capstone Project

ScholarsArchive@OSU

A case study of prebunching and swinging : a thinning system for young forests

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

Thinning aged Douglas-fir : an analysis of mobilization costs and a log bucking strategy for revenue improvement

Logging planning, felling, and yarding costs in five alternative skyline group selection harvests

The DEERHORN case study: a production and cost analysis of a single-grip harvester and small cable yarder performing a thinning/salvage operation in eastern Oregon.

Analysis and operational considerations of biomass extraction on steep terrain in western Oregon

An integrated study of mechanical forest fuel reduction: quantifying multiple factors at the stand level

A decision framework for the implementation of appropriate logging practices in developing countries : case study -- Ethiopia

Production and cost analysis of a helicopter thinning operation in the Oregon Coast Range and comparison to HELIPACE production estimates

Soil comopaction study on a cut-to-length mechanized harvesting system

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