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Filtering by: Alternative title ssim PNW 288 Remove constraint Alternative title ssim: PNW 288 Decade 1980-1989 Remove constraint Decade: 1980-1989 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
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
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

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Academic Affiliation

Soil Science5

Advisor

Huddleston, J. Herbert2
Boersma, Larry1
Harward, Moyle E.1
Youngberg, C. T.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1981 to 1986

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Committee Member

Berry, Ralph1
Childs, Stuart1
Froehlich, Hank1
Froehlich, Henry1
Lavender, Denis1
more Committee Members »

Creator

Black, C. H. (Charles H.)1
Evans, Lynn B.1
Istok, J. D.1
Myhrum, Ronald P.1
Wicherski, Bruce P.1

Date

Date range begin – Date range end

Current results range from 1980 to 1985

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Decade

1980-1989[remove]5

Degree Field

Soil Science[remove]5

Degree Level

Master's4
Doctoral1

Degree Name

Master of Science (M.S.)4
Doctor of Philosophy (Ph.D.)1

Language

English [eng]5

Non-Academic Affiliation

Oregon State University. Graduate School5

Peer Reviewed

No5

Resource Type

Masters Thesis4
Dissertation1

Rights Statement

Copyright Not Evaluated5

Subject

Clay soils -- Oregon1
Douglas fir1
Forest soils -- Oregon1
Mycorrhizas1
Plant-soil relationships1
more Subjects »

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