Index Catalog // ScholarsArchive@OSU

Wind direction and effect of tree lean on coarse woody debris production

Creator:: Bustos-Letelier, Oscar
Abstract:: The natural fall of trees in riparian areas is an important source of coarse woody debris for mountain streams, improving fish habitat and influencing stream morphology. Existing models consider the probability of coarse woody debris entering a stream channel based upon trees having a random direction of fall without consideration...
Resource Type:: Masters Thesis

Fall directions and breakage of riparian trees along streams in the Pacific Northwest

Creator:: Sobota, Daniel J.
Abstract:: In the Pacific Northwest, regulatory agencies have recently implemented management strategies for restoration and maintenance of wood recruitment to streams over time. This allochthonous organic material is a critical component in the geomorphic and biological structure of forested streams. Mathematical models are commonly used to evaluate long-term wood dynamics in...
Resource Type:: Masters Thesis
Full Text:: sites in the Pacific Northwest, USA (constructed with full data set) 76 Model simulation of probability

Equations for predicting height-to-crown-base, 5-year diameter-growth rate, 5-year height-growth rate, 5-year mortality rate, and maximum size-density trajectory for Douglas-fir and western hemlock in the coastal region of the Pacific Northwest

Creator:: Hann, David W., Marshall, David D., Hanus, Mark L., and Oregon State University. Forest Research Laboratory
Abstract:: Using existing permanent research plot data, we developed equations for predicting height-to-crown-base (HCB), 5-yr diametergrowth rate (delta D), 5-yr height-growth rate (delta H), 5-yr mortality rate (PM), and the maximum size-density trajectory for Douglasfir and western hemlock in the coastal region of the Pacific Northwest. With the exception of the...
Resource Type:: Technical Report
Full Text:: TRAJECTORY FOR DOUGLAS-FIR AND WESTERN HEMLOCK IN THE COASTAL REGION OF THE PACIFIC NORTHWEST by David W

An econometric model of Pacific Northwest feeder cattle basis

Creator:: Vanderpool, Cynthia Ann
Abstract:: Fluctuating feeder cattle prices have a direct affect on the revenue variability of feeder cattle producers. Hedging in the commodity futures market is a marketing strategy which can, if properly used, reduce the financial risk of feeder cattle producers. If the closing basis value is known when a hedge is...
Resource Type:: Masters Thesis
Full Text:: Title: An Econometric Model of Pacific Northwest Feeder Cattle Basis Abstract approved: Carl

Coastal sand dunes in the U.S. Pacific Northwest : regional variability in foredune geomorphology and associated physical vulnerability to hazards

Creator:: Mull, Jeremy M.
Abstract:: Coastal foredunes protect lives, infrastructure, and ecosystems during severe winter storms. In the U.S. Pacific Northwest (PNW), coastal foredune geomorphology is determined by both physical and ecological mechanisms. Before the 1900's, the native plant Elymus mollis was the dominant dune grass and dune morphology was largely determined by sediment supply...
Resource Type:: Masters Thesis
Full Text:: presented on December 7, 2010. Title: Coastal Sand Dunes in the U.S. Pacific Northwest: Regional

A production function analysis of water resource productivity in Pacific Northwest agriculture

Creator:: Holloway, Milton L.
Abstract:: The competition or rivalry for the use of water resources among economic sectors of the Pacific Northwest and among geographical regions of the western United States has intensified in recent years. This rivalry and the long run prospects for water shortages have increased the demand for research concerning the productivity...
Resource Type:: Dissertation
Full Text:: productivity in Pacific Northwest agriculture AN ABSTRACT OF THE THESIS OF MILTON LEE HOLLOWAY for the

A production function analysis of water resource productivity in Pacific Northwest agriculture

Creator:: Holloway, Milton L.
Abstract:: The competition or rivalry for the use of water resources among economic sectors of the Pacific Northwest and among geographical regions of the western United States has intensified in recent years. This rivalry and the long run prospects for water shortages have increased the demand for research concerning the productivity...
Resource Type:: Dissertation
Full Text:: PRODUCTION FUNCTION ANALYSIS OF WATER RESOURCE PRODUCTIVITY IN PACIFIC NORTHWEST AGRICULTURE Abstract

A short run price forecasting model for slaughter steers and slaughter cows in the Pacific Northwest

Creator:: Reed, Stephen Paul
Abstract:: The cattle industry in the Pacific Northwest is characterized by a large number of producers. Individual contributions to the market have little effect in moderating potential fluctuations in the prices received for the various classes of cattle. Price volatility is of constant concern to producers in planning future production, with...
Resource Type:: Masters Thesis
Full Text:: Short Run Price Forecasting Model for Slaughter Steers and Slaughter Cows in the Pacific Northwest

Development of a hybrid modeling framework for intensively managed Douglas-fir plantations in the Pacific Northwest

Creator:: Weiskittel, Aaron R.
Abstract:: Forest growth models in the Pacific Northwest are predominantly empirical. Predictions of yield under alternative silvicultural regimes cannot rely completely on field trials; yet empirical growth models are often inadequate for extrapolating untested regimes and genotypes. The limitations of current models include (1) long time-steps (e.g. 5-10 years); (2) insufficient...
Resource Type:: Dissertation
Full Text:: Intensively Managed Douglas-Fir Plantations in the Pacific Northwest. Abstract approved: Douglas A

Modeling nitrogen fixation in dead wood

Creator:: Hicks, William Thomas
Abstract:: A mechanistic simulation model of nitrogen fixation in dead wood was developed to help synthesize knowledge, develop hypotheses, and estimate rates of nitrogen fixation in the Pacific Northwest. In this model nitrogen fixation is directly controlled by log substrate, temperature, moisture, and oxygen content. Respiration and diffusion of oxygen indirectly...
Resource Type:: Dissertation

ScholarsArchive@OSU

Wind direction and effect of tree lean on coarse woody debris production

Fall directions and breakage of riparian trees along streams in the Pacific Northwest

Equations for predicting height-to-crown-base, 5-year diameter-growth rate, 5-year height-growth rate, 5-year mortality rate, and maximum size-density trajectory for Douglas-fir and western hemlock in the coastal region of the Pacific Northwest

An econometric model of Pacific Northwest feeder cattle basis

Coastal sand dunes in the U.S. Pacific Northwest : regional variability in foredune geomorphology and associated physical vulnerability to hazards

A production function analysis of water resource productivity in Pacific Northwest agriculture

A production function analysis of water resource productivity in Pacific Northwest agriculture

A short run price forecasting model for slaughter steers and slaughter cows in the Pacific Northwest

Development of a hybrid modeling framework for intensively managed Douglas-fir plantations in the Pacific Northwest

Modeling nitrogen fixation in dead wood

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