Index Catalog // ScholarsArchive@OSU

Belowground carbon storage and soil organic matter quality following fertilizer and herbicide applications in ponderosa pine plantations along a site-quality gradient in northern California

Creator:: McFarlane, Karis J., 1979-
Abstract:: Belowground carbon (C) storage and quality of soil organic matter (SOM) in forest soils have implications for sustainable forest management and C sequestration, but how these pools change in response to management is poorly understood. I investigated whether fertilization and competing vegetation control, applied alone or in combination early in...
Resource Type:: Dissertation
Full Text:: Forest Enfineering presented on July 27,2007. Title: Belowmound Carbon Storage and Soil Organic

Hydrologic properties of soil and subsoil on a steep, forested slope

Creator:: Ranken, Darrel Wesley
Abstract:: The purpose of this study was to examine certain hydrologic properties of the soil and subsoil on a steep forested slope and relate these -rceTties to the movement of water via subsurface routes. The hydrologic properties examined were bulk density, soil texture, total porosity, pore size distribution, saturated hydraulic conductivity,...
Resource Type:: Masters Thesis

An investigation of the influence of root reinforcements on soil strength and the initiation of static liquefaction in forest soils

Creator:: Smith, Russell S.
Abstract:: A study was conducted to investigate the influence of root reinforcements on soil strength and the initiation of static liquefaction in forest soils. The design and operation was developed of an apparatus capable of modeling rainfall-induced shallow hill-slope failures that also permitted observation of the soil volume change tendencies at...
Resource Type:: Masters Thesis
Full Text:: Influence of Root Reinforcements on Soil Strength and the Initiation of Static Liquefaction in Forest Soils

Restoring productivity of compacted forest soils with tillage

Creator:: Whitaker, Carol Anne
Abstract:: Tillage of forest soils compacted by ground-based logging systems is a practice that is becoming widely accepted in the Pacific Northwest. However, past research has failed to adequately define the conditions and specifications that particular tillage operations should meet in order to produce the maximum growth response from planted seedlings....
Resource Type:: Masters Thesis

Impacts of forest practices on surface erosion

Creator:: Sidle, Roy C.
Abstract:: Surface erosion can be initiated by forest practices such as timber harvest, road construction, and site preparation. A variety of management and control measures can help reduce this erosion. Surface erosion is generated by soil and operational conditions that are conducive to or cause disturbance and compaction. By using good...
Resource Type:: Technical Report
Full Text:: rainfall rate, the entire amount of water falling on the forest floor moves into the soil and overland

The effects of compaction on hydrologic properties of forest soils in the Sierra Nevada

Creator:: Cafferata, Peter Herman Louis
Abstract:: This study evaluated the effects of a crawler tractor, a rubber-tired skidder, and a torsion suspension vehicle on several soil and hydrologic properties in the western Sierra Nevada Mountains of California. Four sites, with soil textural classes ranging from a loam to a loamy sand and elevations between 680 and...
Resource Type:: Masters Thesis

Debris flow characteristics associated with forest practices in the central Oregon Coast Range

Creator:: May, Christine L.
Abstract:: Debris flows in the Pacific Northwest play a major role in routing wood and sediment stored on hillslopes and in first- through third-order channels to higher order channels and valley floors. Forest practices on steep, unstable slopes and removal of riparian trees along low-order streams can affect the frequency, magnitude,...
Resource Type:: Masters Thesis
Full Text:: timber harvest, and the resulting mortality of the forest, lead to an apparent reduction in soil

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

Surface erosion from a forest road, Polk Inlet, Prince of Wales Island, Alaska

Creator:: Kahklen, Keith F.
Abstract:: Rainfall, discharge, traffic, and suspended sediment were monitored for a period of 4.5 months at three locations on a secondary haul road at Polk Inlet, Alaska to determine the important processes and variables involved in surface road erosion for this area. Three sites all less than 500m² and within 5...
Resource Type:: Masters Thesis

First-year effects of broadcast burning on soil infiltration and wettability in southwest Oregon

Creator:: Gaweda, Frank M.
Abstract:: Soil infiltration and wettability measurements during the first year following a broadcast burn in the Siskiyou Mountains of southwest Oregon, have illustrated the magnitude of the effects of light-to-moderate intensity burning on hydrological soil properties. A prescribed fire near White Creek in late spring significantly reduced soil infiltration for 4...
Resource Type:: Masters Thesis

Reducing sediment production from forest roads during wet-weather use

Creator:: Toman, Elizabeth Myers
Abstract:: Forest roads produce fine sediment with traffic during wet weather. If the forest road is connected to a stream it can be a source of turbidity and fine sediment that may be detrimental to aquatic organisms especially salmonids. The goal of this work was to investigate turbid runoff during wet-weather...
Resource Type:: Dissertation
Full Text:: Forest Practice Rules and BMPs in the west." Water, Air, and Soil Pollution: Focus, 4(1), 143-169

Response of needle-litter decomposition and soil nitrogen mineralization to logging-debris manipulation and competing vegetation control in western Oregon and Washington

Creator:: Meehan, Nathan Andrew
Abstract:: Growing societal demand for forest products is pressuring managers to increase productivity from a finite land area, and it is expected that increased supply will come mostly from expansion of intensively managed stands. The USDA Forest Service and numerous collaborators created the Long-Term Soil Productivity (LTSP) network of research sites...
Resource Type:: Masters Thesis
Full Text:: Forest Engineering presented on March 17, 2006. Title: Response of Needle-Litter Decomposition and Soil

Assessing the sustainability of management practices for planted forests across an environmental gradient in New Zealand

Creator:: Kiyvyra, Alicia L.
Abstract:: Sustainable management of planted forests requires maintenance of soil function to promote 1) root growth; 2) storage and cycling of water and nutrients; 3) optimal gas exchange; and 4) biological activity. Soil quality measurements can be used to monitor short- and long-term changes in these soil functions, allowing managers to...
Resource Type:: Dissertation
Full Text:: impacts of soil disturbance (low vs. high), fertilization (fertilization vs. none), and tree species

Sediment production from forest roads in the upper Oak Creek Watershed of the Oregon Coast Range

Creator:: Amann, Joseph R.
Abstract:: Unpaved roads are sources of chronic sediment in forested watersheds. Bare soil on roads is exposed to erosion from rainfall and runoff Published research on sediment production from forest roads focuses primarily on road characteristics. Since water drives the mechanics of sediment transport, hydrologic variables should correlate with sediment production....
Resource Type:: Masters Thesis

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:: ................................................................................................ 123 3.0 SOIL COMPACTION AND VISUAL SOIL DISTURBANCE FOLLOWING TWO MECHANICAL FOREST FUEL

ScholarsArchive@OSU

Belowground carbon storage and soil organic matter quality following fertilizer and herbicide applications in ponderosa pine plantations along a site-quality gradient in northern California

Hydrologic properties of soil and subsoil on a steep, forested slope

An investigation of the influence of root reinforcements on soil strength and the initiation of static liquefaction in forest soils

Restoring productivity of compacted forest soils with tillage

Impacts of forest practices on surface erosion

The effects of compaction on hydrologic properties of forest soils in the Sierra Nevada

Debris flow characteristics associated with forest practices in the central Oregon Coast Range

Soil compaction on a mechanized timber harvest operation in eastern Oregon

Shovel logging and soil compaction : a case study

Surface erosion from a forest road, Polk Inlet, Prince of Wales Island, Alaska

First-year effects of broadcast burning on soil infiltration and wettability in southwest Oregon

Reducing sediment production from forest roads during wet-weather use

Response of needle-litter decomposition and soil nitrogen mineralization to logging-debris manipulation and competing vegetation control in western Oregon and Washington

Assessing the sustainability of management practices for planted forests across an environmental gradient in New Zealand

Sediment production from forest roads in the upper Oak Creek Watershed of the Oregon Coast Range

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

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