Index Catalog // ScholarsArchive@OSU

Spatially explicit inter-temporal forest management decision under the risk of fire

Creator:: Konoshima, Masashi
Abstract:: This paper presents a framework for analyzing efficient spatial allocation of forest management efforts - fuel treatment and harvest - under the risk of fire. The framework integrates a fire behavior model and a spatially-explicit stochastic dynamic optimization model. I investigate the effects of spatial interaction across plots during forest...
Resource Type:: Dissertation
Full Text:: : Claire A. Montgomery Jeffrey L. Arthur This paper presents a framework for analyzing efficient spatial

The relationship between cation exchange capacity, total bases, and exchange acidity in certain Oregon soils

Creator:: Lin, Clara Ju-Yuan
Abstract:: Two soils representative of the coast and three representing the Willamette Valley have been studied for their general chemical characteristics. Exchange capacity and exchangeable cations were determined by the ammonium acetate and the BaCl₂-triethanolamine buffer methods. Exchange capacity was also obtained from conductimetric titrations which were run on each soil...
Resource Type:: Masters Thesis

Optimizing spatial and temporal aspects of nature reserve design under economic and ecological objectives

Creator:: Nalle, Darek J.
Abstract:: Alteration of natural areas in attempts to support increasing human populations has been a crucial yet less publicized contributor to the fall of many of the world's greatest civilizations, since healthy ecosystems can help maintain stable societies and economies. Given this unhappy fact and the ancient relationship between people and...
Resource Type:: Dissertation
Full Text:: for the four scenarios listed in Table 5.4. 5.1 l(a) Plot of owl time-series for the four scenarios

Growth, residence, and movement of juvenile Chinook salmon within restored and reference estuarine marsh channels in Salmon River, Oregon

Creator:: Hering, David K.
Abstract:: Tidal wetland channels provide rearing habitat for juvenile Chinook salmon as they emigrate from freshwater habitat and prepare to enter the ocean. Widespread diking and drainage of estuarine marshes for agricultural and urban development may have contributed to a decline in salmon abundance in the Pacific Northwest, prompting efforts to...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________ Ian A. Fleming Daniel L. Bottom Tidal wetland channels provide rearing habitat

Mortality threshold for juvenile Chinook salmon (Oncorhynchus tshawytscha) in an epidemiological model of Ceratomyxa shasta

Creator:: Ray, R. Adam
Abstract:: The myxozoan parasite, Ceratomyxa shasta, is the most significant pathogen of juvenile Chinook salmon (Oncorhynchus tshawytscha) in the Klamath River, CA, USA. This parasite requires two hosts - a freshwater polychaete (Manayunkia speciosa) and a salmonid - to complete its life cycle. The complex life cycle and large geographic area...
Resource Type:: Masters Thesis
Full Text:: AKNOWLEDGEMENTS The author expresses sincere appreciation to Dr. Jerri L. Bartholomew and Dr. Philippe A

Life histories of juvenile Chinook salmon (Oncorhynchus tshawytscha) in the Columbia River estuary as inferred from scale and otolith microchemistry

Creator:: Campbell, Lance A.
Abstract:: Despite evidence that juvenile Chinook salmon (Oncorhynchus tshawytscha) utilize North Pacific estuaries for growth and salinity acclimation, research in the Columbia River estuary has lead to opposing hypotheses about the estuary’s importance as a salmon rearing environment. Many contemporary tagging studies indicate that salmon residency within the estuary is short...
Resource Type:: Masters Thesis
Full Text:: ).‖ Daniel L. Bottom, Eric C. Volk and Ian A. Fleming contributed to Chapter Three ―Life history variation

Rhyolitic magmatism of the High Lava Plains and adjacent Northwest Basin and Range, Oregon : implications for the evolution of continental crust

Creator:: Ford, Mark T.
Abstract:: Understanding continental crust formation and modification is a fundamental and longstanding geologic problem. Influx of mantle-derived basaltic magma and partial melting of the crust are two ways to drive crustal differentiation. This process results in a low density upper crust and denser, more refractory lower crust, creating significant and vastly...
Resource Type:: Dissertation

Measuring benefits of outdoor recreation services : an application of the household production function approach to the Oregon steelhead sport fishery

Creator:: Strong, Elizabeth J.
Abstract:: This study provides an empirical test of the Bockstael-McConnell (1980) household production function (HPF) framework for evaluating wildlife recreation. This is perhaps the first study in which both taste and technology parameters have been estimated with a theoretical model specification. The results suggest that for steelhead sport fishing in Oregon,...
Resource Type:: Masters Thesis
Full Text:: Redacted for Privacy Abstract Approved: Darrel L. Hueth Bruce A. Weber This study provides an empirical

Chemical properties of soils related to seasonal fluctuations in exchangeable potassium

Creator:: Etter, Harold Mac Donald
Abstract:: Representative sites of the Dayton, Woodburn, Jory, Quillayute, Astoria, Willamette, Walla Walla, Deschutes, Laki and Owyhee soil series were investigated for seasonal changes in exchangeable potassium in air dry samples. No consistent seasonal variations were found which could be attributed to wetting and drying in the field. Cropping reduced the...
Resource Type:: Masters Thesis
Full Text:: The author gratefully acknowledges the advice and assistance offered by Dr. L. A. Alban throughout

Characterization of alkali bee nesting sites

Creator:: Wipper, Wallace John
Resource Type:: Masters Thesis
Full Text:: ACKN'JLEDGMENT The author gratefully acknowledges the advice offered by Dr. L. A. Alban during the course of

ScholarsArchive@OSU

Spatially explicit inter-temporal forest management decision under the risk of fire

The relationship between cation exchange capacity, total bases, and exchange acidity in certain Oregon soils

Optimizing spatial and temporal aspects of nature reserve design under economic and ecological objectives

Growth, residence, and movement of juvenile Chinook salmon within restored and reference estuarine marsh channels in Salmon River, Oregon

Mortality threshold for juvenile Chinook salmon (Oncorhynchus tshawytscha) in an epidemiological model of Ceratomyxa shasta

Life histories of juvenile Chinook salmon (Oncorhynchus tshawytscha) in the Columbia River estuary as inferred from scale and otolith microchemistry

Rhyolitic magmatism of the High Lava Plains and adjacent Northwest Basin and Range, Oregon : implications for the evolution of continental crust

Measuring benefits of outdoor recreation services : an application of the household production function approach to the Oregon steelhead sport fishery

Chemical properties of soils related to seasonal fluctuations in exchangeable potassium

Characterization of alkali bee nesting sites

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