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Filtering by: Subject Competition Committee Member Tappeiner, John

Growth of plantation conifers and whiteleaf manzanita in southwest Oregon

Creator:

Hanson, Thomas J. (Thomas Jeffrey)

Abstract:

Southwest Oregon presents an environment of hot dry summers, cool moist winters, and rocky, shallow soils. The establishment of conifer plantations in this region presents challenging problems for initial seedling survival and subsequent growth. Three areas of concern include early conifer growth after seedling establishment, growth of competing hardwoods within...

Resource Type:

Dissertation
Fifth-year growth responses of Douglas-fir to crowding and other competition

Creator:

Cole, Elizabeth C.

Abstract:

This thesis examines the competitive aspects of Douglas-fir trees growing with two commonly associated competitors--red alder and grass--at varying densities. Two Nelder plots in three different environments in the Oregon Coast Range were studied. The sites represented the warm, dry climate of the Willamette Valley; the warm, moist climate of...

Resource Type:

Masters Thesis
The effect of riparian buffer strips on salmonberry (Rubus spectabilis) community structure in alder stands of the Oregon Coast Range

Creator:

Froyd, Cynthia A.

Abstract:

Salmonberry community structure was examined in alder-dominated riparian buffer strips in the Oregon Coast Range. Salmonberry growing on slopes was found to respond differently, to both characteristics of the buffer strips and to environmental factors, than salmonberry growing on terraces. Salmonberry, as measured by total height, number of ramets or...

Resource Type:

Masters Thesis