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Soil-vegetation relationships withing the ponderosa pine type in the central Oregon pumice region

Creator:: Dyrness, C. T.
Resource Type:: Dissertation
Full Text:: word of appreciation is due Dr. C. T. Youngberg for his constant and enthusiastic help throuiout the

Clay mineralogy and related chemical properties of soils formed on Mazama pumice

Creator:: Chichester, Frederick Wesley
Abstract:: A sequence of soil profiles was sampled along a climate-vegetation transect on the dated Mazama pumice fall in central Oregon. The <2 μ size fraction from each sample was characterized with respect to the relative significance of amorphous and crystalline components, and the individual minerals of the latter group were...
Resource Type:: Dissertation
Full Text:: counsel during the preparation of this dissertation. Special thanks are extended to Drs. C. T. Youngberg

Plant biomass and nutrient distribution in a young Pseudotsuga menziesii forest ecosystem

Creator:: Webber, Bruce Douglas
Resource Type:: Dissertation
Full Text:: indebted to his major professor, Dr. C.T. Youngberg, for review of the manuscript and assistance given

Some soil factors affecting snowbrush nodulation

Creator:: Scott, William
Resource Type:: Dissertation
Full Text:: Stratton for William Scott ACKNOWLEDGEMENT The author wishes to express his sincere thanks to Dr. C. T

Relationships of clay mineralogy to landscape stability in Western Oregon

Creator:: Taskey, Ronald D. (Ronald David), 1944-
Abstract:: Soil erosion by mass wasting is the major problem on forest lands of the Pacific Northwest, The clay fractions of soils from a large number of sites in Oregon's Western Cascades were characterized in order to determine the relationships of various clay materials to mass movements. Each site was either...
Resource Type:: Dissertation
Full Text:: encouragement which he provided during the course of the study. Thanks go to Dr. C. T. Youngberg for serving

Root symbionts and soil microorganisms associated with actinorrhizal plants

Creator:: Rose, Sharon Lee
Abstract:: Symbiotic associations are established between non-leguminous (actinorrhizal) nitrogen-fixing flowering plants and two categories of microorganisms: mycorrhizal fungi and a filamentous actinomycete. The actinomydete induces nodule formation and produces nitrogenase, the enzyme responsible for the reduction of atmospheric nitrogen to a form available to higher plants. The mycorrhizal fungus is found...
Resource Type:: Dissertation
Full Text:: MYCORRHIZAE AND ACTINOMYCES S. L. Rose and C. T. Youngberg 21 ABSTRACT Mountain mahogany (Cercocarpus

The effects of mycorrhizal colonization and phosphorus fertilization on Douglas-fir seedling growth, morphology, and photosynthesis

Creator:: Black, C. H. (Charles H.)
Resource Type:: Dissertation
Full Text:: ACKNOWLEDGEMENTS I would like to thank Dr. C. T. Youngberg for giving me the opportunity to work on this project

Heat and moisture transfer in a pumice soil

Creator:: Cochran, Patrick Holmes
Resource Type:: Dissertation

Site quality of western hemlock and chemical characteristics of some western Oregon andic soils

Creator:: Meurisse, Robert Thomas
Resource Type:: Dissertation
Full Text:: for'Robert Thomas Meurisse ACKNOWLEDGEMENTS The author wishes to express his appreciation to Dr. C. T

Nitrogen, phosphorus and particulate matter budgets of five coniferous forest ecosystems in the western Cascades Range, Oregon.

Creator:: Fredriksen, R. L.
Abstract:: Nutrient and particulate matter balances were established for five ecosystems dominated by Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] in the western Cascades, Oregon. Carriers of N and P were particulate matter (dust in precipitation and sediment in streams) and dissolved matter in both precipitation and stream water. The input and outflow...
Resource Type:: Dissertation

ScholarsArchive@OSU

Soil-vegetation relationships withing the ponderosa pine type in the central Oregon pumice region

Clay mineralogy and related chemical properties of soils formed on Mazama pumice

Plant biomass and nutrient distribution in a young Pseudotsuga menziesii forest ecosystem

Some soil factors affecting snowbrush nodulation

Relationships of clay mineralogy to landscape stability in Western Oregon

Root symbionts and soil microorganisms associated with actinorrhizal plants

The effects of mycorrhizal colonization and phosphorus fertilization on Douglas-fir seedling growth, morphology, and photosynthesis

Heat and moisture transfer in a pumice soil

Site quality of western hemlock and chemical characteristics of some western Oregon andic soils

Nitrogen, phosphorus and particulate matter budgets of five coniferous forest ecosystems in the western Cascades Range, Oregon.

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