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Creator:: Lueck, Dennis
Resource Type:: Masters Thesis
Full Text:: approved: Redacted for privacy Donald B. Toybl The ecology of whitebark pine (Pinus albicaulis Engeim

Creator:: Imper, David Kimberly
Abstract:: Twelve plots at six sites in southwestern Oregon were studied to determine the degree to which various soil characteristics are related to the occurrence and growth of Chamaecyparis lawsoniana and Thuja plicata. Soil profiles and vegetation were described in each plot, and measurements were made of insolation, soil and litter...
Resource Type:: Masters Thesis
Full Text:: lkoLltcT B. Zobel Twelve plots at six sites in southwestern Oregon were studied to determine the degree

Creator:: Brown, Kevin R.
Abstract:: Larix laricina in Alaska occurs on sites ranging from productive slopes and riverbottoms to wet bogs underlain by permafrost. It is largest on sites without permafrost, where it is associated with Picea glauca, but is much more common in bogs, where it occurs with Picea mariana. In this study, I...
Resource Type:: Masters Thesis
Full Text:: LARICINA IN INTERIOR ALASKA Abstract approved: Redacted for Privacy bonAdB. Zobel Larix laricina in

Creator:: Antos, Joseph A.
Abstract:: The effects of burial by tephra (volcanic aerial ejecta) on forest understory plants were examined northeast of Mount St. Helens, Washington, in the area where the 18 May 1980 eruption deposited tephra but did not destroy canopy trees. At six sites along a tephra depth gradient from 2-15 cm, understory...
Resource Type:: Dissertation
Full Text:: , Dr. Donald B. Zobel, for numerous forms of assistance. I appreciate the help received from my

Creator:: Kerle, Elizabeth A.
Resource Type:: Masters Thesis
Full Text:: National Park. Oregon Redacted for Privacy Abstract approved: Donald b. zdidel The ecology of two N2

Creator:: Yoder, Barbara J.
Abstract:: Comparisons were made of the tissue water relations, stomatal conductance and growth of grand fir (Abies grandis), white fir (Abies concolor) and their hybrids growing in a western Oregon plantation. The grand fir were naturally-regenerated trees native to the study site. White fir and hybrids were the progeny of controlled...
Resource Type:: Masters Thesis

Creator:: Stewart, Glenn H.
Abstract:: The dynamics of stands in the mid-elevation old-growth Douglas-fir (Pseudotsuga menziesii) forests of the central western Oregon Cascade Range were investigated using stand structure analysis. Trees with different growth rates were commonly present in the same stand, which resulted often in a weak correlation between tree diameter and age. Thus,...
Resource Type:: Dissertation
Full Text:: ACKNOWLEDGEMENTS I wish to thank Drs Jerry Franklin and Donald Zobel for serving ably as my major professors and

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