Index Catalog // ScholarsArchive@OSU

Structural development of late successional forests in the central Oregon Coast Range : abundance, dispersal, and growth of western hemlock (Tsuga heterophylla) regeneration

Creator:: Schrader, Barbara A.
Abstract:: Patterns of western hemlock regeneration were studied in relation to forest structural development and environment in the Oregon Coast Range. Density of western hemlock seedlings was examined across the climatic gradient from cool, moist coastal areas to the seasonally hot and dry Willamette Valley Margin. Seedling densities were most strongly...
Resource Type:: Dissertation

Site quality of western hemlock and chemical characteristics of some western Oregon andic soils

Creator:: Meurisse, Robert Thomas
Resource Type:: Dissertation
Full Text:: QUALITY OF WESTERN HEMLOCK AND CHEMICAL CHARACTERISTICS OF SOME WESTERN OREGON ANDIC SOILS Abstract

Growth of western hemlock stands after precommercial thinning

Creator:: Dilworth, J. R. (John Richard), 1914- and Oregon State University. Forest Research Laboratory
Abstract:: Young western hemlock stands in the Coast Range of Oregon will contribute to the commercial timber supply of the region in the future, the extent of the contribution depending on environmental and cultural factors. The relative diameter and volume growth of crop-trees in the stands will be increased substantially by...
Resource Type:: Technical Report
Full Text:: -year-old natural western hemlock [ Tsuga heterophylla (Raf.) Sarg.] located in the Oregon Coast Range

Test of western hemlock wildlings in brushfield reclamation

Creator:: Newton, Michael, 1932- and Oregon State University. Forest Research Laboratory
Abstract:: The response of western hemlock (Tsuga heterophylla [Raf.] Sarg.) to two methods of site preparation for planting was compared. One site was cleared of mature brush by the "brown-crush-and-burn" method. The other was partially cleared by spraying with herbicides. Seedlings lifted and planted in December, January, February, and April were...
Resource Type:: Technical Report
Full Text:: . 1976. Regeneration performance of western hemlock in Washington and Oregon. Pages 201-205 in W. A

Modeling hemlock dwarf mistletoe (Arceuthobium tsugense subsp. tsugense) spread and intensification in mature uneven-aged forests in southeast Alaska

Creator:: Trummer, Loreen M.
Abstract:: Hemlock dwarf mistletoe (Arceuthobium tsugense (Rosendahi) G.N. Jones subsp. tsugense (western hemlock race)) is the most important and widespread disease of old-growth western hemlock forests in the Pacific Northwest. Although heavy infection of dwarf mistletoe can significantly increase growth loss and mortality of host trees, the parasite is also considered...
Resource Type:: Masters Thesis

Animal damage, vegetative competition and growth of western hemlock seedlings in the Coast Range of Oregon

Creator:: Hyatt, Joan Marie
Abstract:: The growth of western hemlock during the first four years of seedling establishment was examined in a competitive environment in which seedlings were exposed to various types of animal damage and salmonberry and/or alder competition. The study utilized an existing Nelder/replacement series experiment which focused on the competitive effects among...
Resource Type:: Masters Thesis

Xylem cavitation in newly planted western hemlock (Tsuga heterophylla (Raf.) Sarg.) seedlings

Creator:: Kavanagh, Kathleen L., 1955-
Abstract:: Reforestation of Pacific Northwest forest-lands with western hemlock has been hindered by unexplained plantation failures. The purpose of this thesis is to provide information that will help in determining the cause of seedling damage and mortality. The studies focused on the relationship between xylem water potential, xylem cavitation and the...
Resource Type:: Dissertation

Managing western hemlock forests in the Oregon Coast Range

Creator:: Duddles, Ralph E., Fitzgerald, Stephen Arthur, and Oregon State University. Extension Service
Abstract:: Western hemlock forests in the coastal areas of Oregon are some of the most productive and diverse forests in the world. This rich diversity represents both a challenge and an opportunity for woodland owners interested in managing western hemlock on their property.
Resource Type:: Technical Report
Full Text:: Managing Western Hemlock Forests in the Oregon Coast Range

Vegetation-environmental relationships on two clearcuts on the western slopes of the Oregon Cascades

Creator:: Egeland, Dawn M.
Abstract:: Douglas-fir and western hemlock growth and stocking were examined on two neighboring clear-cut watersheds in the Western Cascades of Oregon and related to the intensity of burning and logging disturbance, habitat type, soil type, aspect and the influence of percent cover of both invading Ceanothus species and residual Acer circinatum....
Resource Type:: Masters Thesis

Effects of residual trees on growth of young to mature Douglas-fir and western hemlock in the western central Oregon Cascades

Creator:: Zenner, Eric K.
Abstract:: The purpose of this study was to assess how growth of young to mature Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) and western hemlock (Tsuga heterophylla (Raf.) Sar.) in mixed stands was influenced by the presence of residual trees. Fourteen paired plots with and without residual trees were examined in a retrospective...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Structural development of late successional forests in the central Oregon Coast Range : abundance, dispersal, and growth of western hemlock (Tsuga heterophylla) regeneration

Site quality of western hemlock and chemical characteristics of some western Oregon andic soils

Growth of western hemlock stands after precommercial thinning

Test of western hemlock wildlings in brushfield reclamation

Modeling hemlock dwarf mistletoe (Arceuthobium tsugense subsp. tsugense) spread and intensification in mature uneven-aged forests in southeast Alaska

Animal damage, vegetative competition and growth of western hemlock seedlings in the Coast Range of Oregon

Xylem cavitation in newly planted western hemlock (Tsuga heterophylla (Raf.) Sarg.) seedlings

Managing western hemlock forests in the Oregon Coast Range

Vegetation-environmental relationships on two clearcuts on the western slopes of the Oregon Cascades

Effects of residual trees on growth of young to mature Douglas-fir and western hemlock in the western central Oregon Cascades

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