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Dry coniferous forests in the Western Oregon Cascades

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:: product of the physical, mental and emotional efforts of many people. To Dr. Jerry F. Franklin I owe

The source area for coarse woody debris in small streams in western Oregon and Washington

Creator:: McDade, Mary Helen
Abstract:: Large organic debris has important biological and physical roles within the stream ecosystem. In order to determine the source area of large organic debris in streams, thirty-nine streams in the Cascade and Coast Ranges of Oregon and Washington were sampled. The distance from point-of-origin to channel was measured for thirty...
Resource Type:: Masters Thesis
Full Text:: thanks. First of all, to my commit- tee, Jerry Franklin, Fred Swanson, and Jim Sedell, thank you for

Twenty-one years of secondary succession in Pseudotsuga forests of the western Cascade Range, Oregon

Creator:: Halpern, Charles B.
Resource Type:: Dissertation
Full Text:: ACKNOWLEDGEMENT I thank my advisor, Dr. Jerry F. Franklin, for his continuous support and guidance during my

Ecology and distribution of riparian vegetation in the Trout Creek Mountains of southeastern Oregon

Creator:: Evenden, Angela G.
Resource Type:: Dissertation
Full Text:: Jerry F. Franklin Vegetation-environment relationships were studied in highly disturbed riparian

Logs as sites of tree regeneration in Picea sitchensis-Tsuga heterophylla forests of coastal Washington and Oregon

Creator:: Harmon, Mark E.
Abstract:: Logs are seedbeds for trees in many Picea sitchensis-Tsuga heterophylla forests of Washington and Oregon. Factors affecting this close association, including seed retention and seedling establishment on logs and successional changes in log characteristics, are explored In this study. Field and laboratory experiments indicated that competition with vegetation on the...
Resource Type:: Dissertation

Structure of mature Douglas-fir stands in a western Oregon watershed and implications for interpretation of disturbance history and succession

Creator:: Klopsch, Mark Warren
Abstract:: The structure of a mature Douglas-fir (Pseudotsuga menziesii) forest in a watershed in the western Cascades of Oregon was examined. Two age classes were detected in the stand, the oldest originating about 1855 after an extensive fire and the younger following a second fire about 1895 Although the trees in...
Resource Type:: Masters Thesis

Conifer establishment from seed on tephra deposits from the 1980 eruptions of Mount St. Helens, Washington

Creator:: Frenzen, Peter M.
Abstract:: Information concerning the factors controlling seedling establishment on tephra deposits (airfall volcanic ejecta) is limited. The establishment and growth of six coniferous species, Abies amabills (Dougl.) Forbes (Pacific silver fir), A. procera Rehd. (noble fir), Pinus monticola Dougl. (western white pine), P. Contorta Dougl. (lodgepole pine), Pseudotsuga menziesii (Mirb.) Franco...
Resource Type:: Masters Thesis

Biomass dynamics of dead Douglas-fir and western hemlock boles in mid-elevation forests of the Cascade Range

Creator:: Graham, Robin Lee Lambert
Abstract:: The rate and manner of bioniass loss from decomposing Douglas-fir and western hemlock boles in mid-elevation forests of the central Cascade Range were measured. Bole bark and wood were considered separately. Loss of bole wood due to respiration was measured by change in bole wood density. Loss of bole wood...
Resource Type:: Dissertation

Spatio-temporal pattern analysis of managed forest landscapes : a simulation approach

Creator:: Li, Habin
Abstract:: This study dealt with research problems at the landscape level. The objectives of this thesis were to develop tools to study and characterize landscapes and to interface with a geographic information system (GIS), to evaluate landscape indices, and to examine development of forest cutting patterns under different cutting methods and...
Resource Type:: Dissertation

Biomass and production of understory vegetation in seral sitka spruce-western hemlock forests of southeast Alaska

Creator:: Alaback, Paul B.
Abstract:: Several understory conununities display successional stages during the first two hundred years following logging or fire disturbance in the coastal Picea-Tsua forests of southeast Alaska. Residual shrubs and tree seedlings increase their growth exponentially after overstory removal. Understory biomass peaks at about 5000 kghayr fifteen to twenty-five years after logging....
Resource Type:: Dissertation

ScholarsArchive@OSU

Dry coniferous forests in the Western Oregon Cascades

The source area for coarse woody debris in small streams in western Oregon and Washington

Twenty-one years of secondary succession in Pseudotsuga forests of the western Cascade Range, Oregon

Ecology and distribution of riparian vegetation in the Trout Creek Mountains of southeastern Oregon

Logs as sites of tree regeneration in Picea sitchensis-Tsuga heterophylla forests of coastal Washington and Oregon

Structure of mature Douglas-fir stands in a western Oregon watershed and implications for interpretation of disturbance history and succession

Conifer establishment from seed on tephra deposits from the 1980 eruptions of Mount St. Helens, Washington

Biomass dynamics of dead Douglas-fir and western hemlock boles in mid-elevation forests of the Cascade Range

Spatio-temporal pattern analysis of managed forest landscapes : a simulation approach

Biomass and production of understory vegetation in seral sitka spruce-western hemlock forests of southeast Alaska

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