Index Catalog // ScholarsArchive@OSU

Soil compaction from ground-based thinning and effects of subsequent skid trail tillage in a Douglas-fir stand

Creator:: Hogervorst, Johan Bryan
Abstract:: Although soil tillage has been used successfully to alleviate compaction of forest soil after logging in a number of management contexts, little is known about the feasibility of tilling in residual stands. In an attempt to weigh the benefits of tillage against possible damage done to residual trees during tillage,...
Resource Type:: Capstone Project

A silvicultural prescription to promote long-term forest health, fire resiliency, and wildlife habitat in a central Oregon ponderosa pine stand

Creator:: Bolding, Michael Chad
Abstract:: The Tenino stand, located on the Warm Springs Indian Reservation (WSIR) near Warm Springs, Oregon, is being considered for treatment that will promote longterm forest health, fire resiliency, and wildlife habitat. The management direction for this area is outlined in two WSIR documents: 1) Integrated Resources Management Plan for the...
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

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:: Presented 2006 ACKNOWLEDGEMENTS My time at Oregon State University has been made possible thanks

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:: State University in partial fulfillment of the requirements for the degree of Master of Forestry

Road surface runoff for the Oak Creek watershed: the influence of hillslope and road characteristics

Creator:: Ellingson, Kami S.
Abstract:: Understanding how forest roads interact with hillslope hydrology by intercepting and/or rerouting storm runoff will better enable land managers to reduce erosion related to forest roads. Watershed scale knowledge of how culvert runoff response varies across the landscape would provide valuable information to those individuals designing and maintaining forest road...
Resource Type:: Capstone Project
Full Text:: to Oregon State University In Partial Fulfillment of the requirements for the degree of

Spatial and temporal runoff response to snowmelt, and the influence of geomorphology in a headwater catchment, central eastern Cascades, Washington

Creator:: Alley, David
Abstract:: This report presents a nested gauging study of streamflow variability from three sub-catchments (150-200 ha in area) of the Burns Creek catchment (565 ha) in the Entiat Experimental Forest of central Washington State. We test and reject the hypothesis that headwater catchments of this size are composed of physically and...
Resource Type:: Capstone Project
Full Text:: Submitted to Oregon State University In partial fulfillment of The requirements for the Degree

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

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 Department of Forest Engineering at Oregon State University. These findings appear to be

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

ScholarsArchive@OSU

Soil compaction from ground-based thinning and effects of subsequent skid trail tillage in a Douglas-fir stand

A silvicultural prescription to promote long-term forest health, fire resiliency, and wildlife habitat in a central Oregon ponderosa pine stand

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

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

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

Road surface runoff for the Oak Creek watershed: the influence of hillslope and road characteristics

Spatial and temporal runoff response to snowmelt, and the influence of geomorphology in a headwater catchment, central eastern Cascades, Washington

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

Critique of seven helicopter timber sales with recommendations for improved planning

Aerial forest operations : mineral amendment project

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