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Filtering by: Alternative title ssim PNW 288 Remove constraint Alternative title ssim: PNW 288 Academic Affiliation Soil Science Remove constraint Academic Affiliation: Soil Science Degree Field Soil Science Remove constraint Degree Field: Soil Science

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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:

seedlings. USDA For. Serv. Res. Pap. PNW-45. 12 pp. Pac. Northwest For. and Range Exp. Stn., Portland, Oreg
Soil variability on steep, skeletal forested slopes of the Umpqua National Forest, Oregon

Creator:

Myhrum, Ronald P.

Abstract:

This study was undertaken to determine both the amount and the spatial variability of sand, silt, clay, and six fractions of coarse fragments in soils representing harsh sites for reforestation. Particle size data were collected because of their direct relationship to water holding capacity and the plantability and survivability of...

Resource Type:

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

Creator:

Webber, Bruce Douglas

Resource Type:

Dissertation

Full Text:

-31; 121; 122; 123; 126; 128, p.1-288, 127; 140; 155); however, due to differing methodologies, care
The nature and properties of amorphous colloids formed from Mazama tephra

Creator:

Dingus, Delmar DeLee

Abstract:

Soil samples from the Mazama tephra deposit were collected from the AC and C2 horizons at five different locations along the axis of the main depositional lobe. The clay fraction from the samples was recovered and studied by means of chemical, x-ray, DTA and electron microscopy methods in order to...

Resource Type:

Dissertation
Clay mineralogy in relation to landscape instability in the coast range of Oregon

Creator:

Istok, J. D.

Abstract:

The mineralogy of soils involved in mass movement in Oregon's coast range was examined to determine relationships between clay mineralogy and landscape instability. The objectives were: 1) to determine what kind of materials constitute the less than 2μ fraction of soils involved in different categories of mass movement, and 2)...

Resource Type:

Masters Thesis
Analysis of variability of some forest soils in southwestern Oregon

Creator:

Wicherski, Bruce P.

Abstract:

The variability of selected physical, chemical, and morphological soil properties in two landtype mapping units on'the Rogue River National Forest in southwestern Oregon was studied. The objectives of the study were (i) to quantify soil variability in several soil resource inventory mapping units, (ii) to explore methods of describing soil...

Resource Type:

Masters Thesis
Genesis of some soils in the central western Cascades of Oregon

Creator:

Brown, R. B.

Abstract:

Soils representative of several landscape units in the H. J. Andrews Experimental Forest, Western Cascade Range, were sampled, analyzed, and tentatively classified. Genetic inferences were drawn relating soils to landscape position and other factors of soil formation. Descriptive information and nutrient capital data were provided to support ecosystem modelling efforts...

Resource Type:

Masters Thesis
Effect of phosphorus forms and fertilizer rates on mycorrhizal development on containerized seedlings

Creator:

Munson, Kenneth Richard

Resource Type:

Masters Thesis
Hydrophobicity of Cindery Typic Cryorthents

Creator:

Evans, Lynn B.

Abstract:

The hydrophobicity of soils of the Deschutes National Forest was studied. The soils are Cindery Typic Cryorthents, formed in cinders and ash from Mt. Mazama. Ponderosa pine is the dominant overstory vegetation. Of particular interest was the effect of prescribed burning on hydrophobicity. Fire has been shown to cause a...

Resource Type:

Masters Thesis
Soil surface application of asphalt in afforestation in semi-arid zones of Iran

Creator:

Kowsar, Ahang

Resource Type:

Dissertation

Limit your search

Academic Affiliation

Soil Science[remove]10

Advisor

Youngberg, C. T.3
Boersma, Larry2
Huddleston, J. Herbert2
Harward, M. E.1
Harward, Moyle E.1
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1973 to 1986

View distribution

Committee Member

Youngberg, C. T.2
Berry, Ralph1
Childs, Stuart1
Ching, Te May1
Dasch, E. J.1
more Committee Members »

Creator

Black, C. H. (Charles H.)1
Brown, R. B.1
Dingus, Delmar Delee1
Evans, Lynn B.1
Istok, J. D.1
more Creators »

Date

Date range begin – Date range end

Current results range from 1973 to 1985

View distribution

Decade

1980-19895
1970-19795

Degree Field

Soil Science[remove]10

Degree Level

Master's6
Doctoral4

Degree Name

Master of Science (M.S.)6
Doctor of Philosophy (Ph.D.)4

Language

English [eng]10

Non-Academic Affiliation

Oregon State University. Graduate School10

Peer Reviewed

No10

Resource Type

Masters Thesis6
Dissertation4

Rights Statement

Copyright Not Evaluated9
In Copyright1

Subject

Afforestation -- Arid regions1
Clay soils -- Oregon1
Douglas fir1
Forest ecology -- British Columbia -- Vancouver Island1
Forest soils -- Oregon1
more Subjects »

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