Index Catalog // ScholarsArchive@OSU

Hot-yarding as an alternative approach to cable thinning in young forest stands : a comparative study

Creator:: Lucas, Alan R.
Abstract:: This project was one of several studies conducted during the summer of 1981 that were part of the Smallwood Harvesting Research Program administered through the Department of Forest Engineering, Oregon State University. The study looked·at the feasibility of falling and yarding whole trees as a combined activity in a cable...
Resource Type:: Capstone Project

Estimating machine rates and production for selected forest harvesting machines operating in the western United States and determining the most economical machine combinations under representative conditions in Turkey

Creator:: Akay, Abdullah Emin
Abstract:: During the last decades, there has been increasing interest in ground-based mechanized harvesting systems in the western United States as harvest of second growth increased. A major reason for that interest is that labor productivity using conventional methods decreases with smaller tree size. In Turkey, the application of mechanization is...
Resource Type:: Capstone Project

Log cost allocation for multiple mill merchandising systems

Creator:: Leatherman, Louis M.
Abstract:: Co-located mills that share a log resource through a single merchandising facility are challenged with the task of allocating the costs of joint-products in order to determine log cost for each mill during a given period. While allocating joint-costs is inherently arbitrary, some allocation must be made to include raw...
Resource Type:: Capstone Project
Full Text:: Submitted to Oregon State University In partial fulfillment of the requirements for

Critique of seven helicopter timber sales with recommendations for improved planning

Creator:: Petaisto, Inga T.
Abstract:: The focus of this study centers around the economic, technical, and environmental effects analysis of seven helicopter timber sales on four different national forests in Oregon and Washington. This paper is a constructive critique of these seven sales based on the author's personal observations and data collected from planning documents,...
Resource Type:: Capstone Project
Full Text:: the degree of: Master of Forestry Presented to: Department of Forest Engineering Oregon State

Log exports from the Pacific Northwest

Creator:: Jones, Scott Allen
Abstract:: The sale of raw logs from the Pacific Northwest (PNW) was at first considered a desirable market for the sale of unwanted logs. It became a rapidly growing market, and with its growth also came demands from some in the PNW for restrictions against exporting logs. Some believed that the...
Resource Type:: Capstone Project

Aerial forest operations : mineral amendment project

Creator:: Cornell, Jennie L.
Abstract:: A helicopter operations problem was studied for a private forest landowner testing an experimental application of minerals on Douglas-fir (Pseudotsuga menziesil) in the Coast Range of Oregon to offset growth reductions from Swiss needle cast disease. A planning approach was needed to minimize costs for transportation and aerial application of...
Resource Type:: Capstone Project
Full Text:: Jennie L Cornell A PAPER Submitted to Oregon State University In partial fulfillment of the

Soil compaction and disturbance following a thinning of second-growth Douglas-fir with a cut-to-length and a skyline system in the Oregon Cascades

Creator:: Allen, Marganne Mary
Abstract:: Soil bulk density and disturbance were measured before and after a commercial thinning of 3 0-50 year-old Douglas-fir using a cut-to-length (CTL) and a skyline system on the Willamette National Forest in the Oregon Cascades. A dual-probe nuclear densimeter was used to measure bulk density at four and eight inches....
Resource Type:: Capstone Project
Full Text:: Marganne Mary Allen A PROFESSIONAL PAPER submitted to the Department of Forest Engineering Oregon

SkidPC 2000: a mobility, production, and rut depth simulation program

Creator:: Spong, Ben D.
Abstract:: SkidPC 2000, written in Visual Basic Version 6.0, is an updated version of the 1987 DOS program that calculates the mobility and productivity of ground-based logging vehicles over a ground profile. As in the original program, the user enters the vehicle and operational conditions and the program will calculate the...
Resource Type:: Capstone Project
Full Text:: Forestry Presented to: Department of Forest Engineering Oregon State University Corvallis

Physical characteristics of forest soils after timber harvest and tillage in central Oregon: a case study

Creator:: Litton, Sabrina
Abstract:: This study examined the effects of timber harvest and subsoiling on soil physical properties considered important to forest productivity and hydrologic concerns. Ground based mechanical timber harvesting on some soil types can cause soil disturbance including compaction. These effects in turn can influence multiple important soil physical properties that affect...
Resource Type:: Capstone Project
Full Text:: Litton A PROFESSIONAL PAPER submitted to the Department of Forest Engineering Oregon State

A productivity study and machine selection technique for rubber tired skidders in Tasmania, Australia

Creator:: Wilson, Robert A.
Abstract:: Time study data was collected for two horsepower classes of rubber tired skidders from field operations controlled by Associated Pulp and Paper Mills, Ltd., Tasmania, Australia. A wide range of site and logging conditions were used to produce both production per hour and cycle time predictive equations. The resultant equations...
Resource Type:: Capstone Project
Full Text:: Oregon State University in partial fulfillment of the requirements for the degree of Master of

ScholarsArchive@OSU

Hot-yarding as an alternative approach to cable thinning in young forest stands : a comparative study

Estimating machine rates and production for selected forest harvesting machines operating in the western United States and determining the most economical machine combinations under representative conditions in Turkey

Log cost allocation for multiple mill merchandising systems

Critique of seven helicopter timber sales with recommendations for improved planning

Log exports from the Pacific Northwest

Aerial forest operations : mineral amendment project

Soil compaction and disturbance following a thinning of second-growth Douglas-fir with a cut-to-length and a skyline system in the Oregon Cascades

SkidPC 2000: a mobility, production, and rut depth simulation program

Physical characteristics of forest soils after timber harvest and tillage in central Oregon: a case study

A productivity study and machine selection technique for rubber tired skidders in Tasmania, Australia

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