Index Catalog // ScholarsArchive@OSU

Creator:: Harvey, George M.
Abstract:: In 1967, Lophodermella morbida Staley and Bynum, a recently described hypodermataceous needle-cast fungus, became destructively epidemic in a knobcone pine (Pinus attenuata Lemm.) plantation in Del Norte County, California, and in several ponderosa pine (P. ponderosa Laws.) plantations in western and southwestern Oregon. This thesis presents information on this currently...
Resource Type:: Dissertation
Full Text:: Laboratory, Corvallis, Oregon. (Hereafter referred to as PNW Station). 2 The Rocky Mountain and PNW

Creator:: Strand, Mary Ann Sall, 1945-
Abstract:: Western dwarf mistletoe (Arceuthobium campylopodum Engelm. 1. campylopodum) is a parasite of ponderosa pine (Pinus ponderosa Laws. ). The objectives of this investigation are: (a) to formulate a mathematical description of the process of dwarf mistletoe disease spread in a pine forest, (b) to use this description to predict the...
Resource Type:: Dissertation

Creator:: Means, Joseph E.
Abstract:: Pseudotsuga menziesii dominates the forests of the Pacific Northwest. But though it is dominat, Tsuaa heteroohylla or Abies amabilis is usually climax. Many researchers have studied Pseudotsuga on the widespread mesic sites where it is seral, but few have examined the relatively rare ecosystems in which Pseudotsuga or its associate...
Resource Type:: Dissertation
Full Text:: Oakridge 25 Middle third Pseudotsuga/Holodiscus-Ater 560 210 side slope and Pseudotsuga/Berberis/Disporum

Creator:: Adams, David Howard
Abstract:: Numerous isolates of Armillaria mellea were obtained within a 250 by 450 foot Study Area in a ponderosa pine plantation in central Oregon. These isolates were recovered from roots of armillaria-killed young-growth pine, from large stumps of the former pine overstory, including roots away from the stump proper, and from...
Resource Type:: Dissertation

Creator:: Hawk, Glenn M.
Abstract:: The objectives of this study include: (1) analysis of Chamaecyparis lawsoniana, C. taiwanensis, and C. formosensis forests including the structure, composition, and dynamics of plant communities and their environmental relationships; and (2) comparison of the temperate Chamaecyparis forests of Taiwan and the Pacific Northwest with emphasis on structural and successional...
Resource Type:: Dissertation

Creator:: Atzet, Thomas
Abstract:: The purpose of this study was to develope a plant community classification within the Siskiyou mountains, a small range within the Klamath geological province well known for its geologic and floristic diversity. Forest land managers have expressed the need for identification of basic Land classes that will aid in the...
Resource Type:: Dissertation

ScholarsArchive@OSU