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Genetic variation in red alder (Alnus rubra Bong.) in relation to climate and geography of the Pacific Northwest /Ager, Alan A. January 1987 (has links)
Thesis (Ph. D.)--University of Washington, 1987. / Vita. Bibliography: leaves [215]-227.
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Effects of planting density and thinning on growth, stem form, and crown recession in young red alder /Lewis, Robert G. January 1995 (has links)
Thesis (M.S.)--Oregon State University, 1995. / Typescript (photocopy). Includes bibliographical references (leaves 79-85). Also available on the World Wide Web.
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Biomass and composition of the understory vegetation in some Alnus rubra stands in western Oregon /Henderson, Jan A. January 1970 (has links)
Thesis (M.S.)--Oregon State University, 1970. / Typescript. Includes bibliographical references (leaves 57-61). Also available on the World Wide Web.
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Effects of density stress and soil productivity on size, mortality and nitrogen fixation in artificial populations of seedling red alder (Alnus rubra Bong.) /Smith, Nicholas J. January 1983 (has links)
Thesis (Ph. D.)--Oregon State University, 1984. / Typescript (photocopy). Includes bibliographical references (leaves 130-136). Also available on the World Wide Web.
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Polyphenols of red alder : chemistry of the staining phenomenon /Karchesy, Joseph John. January 1974 (has links)
Thesis (Ph. D.)--Oregon State University, 1975. / Typescript (photocopy). Includes bibliographical references. Also available on the World Wide Web.
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Effects of thermoperiod on the early growth of red alder from different elevations and geographic sources /Campbell, Allan, January 1973 (has links)
Thesis (M.S.)--Oregon State University, 1973. / Typescript (photocopy). Includes bibliographical references. Also available on the World Wide Web.
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Water stress, fertilization and light effects on the growth of nodulated, mycorrhizal red alder seedlings /Koo, Chang Duck. January 1989 (has links)
Thesis (Ph. D.)--Oregon State University, 1989. / Typescript (photocopy). Includes bibliographical references. Also available on the World Wide Web.
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Seasonal and diurnal trends of leaf water potential and stomatal conductance of red alder (Alnus rubra Bong) growing along a density gradient in western Oregon /Lu, Shengjun. January 1989 (has links)
Thesis (M.S.)--Oregon State University, 1990. / Typescript (photocopy). Includes bibliographical references (leaves 88-95). Also available on the World Wide Web.
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Estimates of above-ground biomass, net primary production and energy flows in 8 to 10 year old red alder (Alnus rubra Bong.) ecosystemsSmith, Nicholas John January 1977 (has links)
Estimates of the above-ground net primary production, standing crop biomass and above-ground autotrophic energy flows were made for eight 0.04 ha plots in naturally seeded 8 to 10 yr old red alder (Alnus rubra Bong.) ecosystems near the University of British Columbia. All plots had closed canopies and covered a range of stem densities (8,204 to 42,971 stems per ha.) and site classes (good, medium and poor). The mean overstorey biomass was 82 mt/ha (range: 40-112 mt/ha) and current overstorey net productivity was 28,601 Kg/ha/yr (range: 17,802-40,831 Kg/ha/yr). Understorey biomass and productivity were 1.5 percent and 2 percent of the overstorey values respectively. Salmonberry (Rubus spectabilis Pursh) formed 68 percent of the understorey biomass and required at least 6 percent full-sunlight before growth was significant. Litter fall averaged 4,454 Kg/ha (range: 3,019-5,713 Kg/ha) and the undecomposed forest-floor (L layer), 5,811 Kg/ha. The plot
averages for the biomass accumulation ratio of 2.86 Kg/Kg,
for the leaf area index (one side only) of 7.64m²/m², for the
foliage assimilation efficiency of 4.9 Kg/Kg and for the
standing crop density index of 1.06 Kg/m³ were all in the upper ranges for cool-temperate deciduous forests.
The mean caloric content of the above-ground tree biomass was 4.53 Kcal/g ash-containing matter. There was a
significant increase in caloric values with increasing
height in the tree and during the fall. Net conversion
efficiency of visible radiation for the growing season
(April-Oct.) was 2.9 percent (range: 1.8-4.2 percent).
Energy invested in biomass (biocontent) averaged 37,203 2
Kcal/m² (67 percent stem, 33 percent crown) and energy
invested in net primary production (production content)
averaged 13,064 Kcal/m² (54 percent stem, 46 percent crown). Seventeen percent of production content was lost to tree-litter fall. The forest floor energy turnover was 1.2 yrs.
Denser stands were characterized by a narrower range of dimensional classes, a higher mortality, a greater current net primary production and foliage efficiency, a higher solar energy conversion rate but a similar cumulative biomass to the less dense stands.
Density-dependent growth models are hypothesized in which denser stands achieve full site occupancy at a later stage than less dense stands.
The potentials of alder as a fuel and biomass-farm crop are discussed. / Forestry, Faculty of / Graduate
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Inoculation potential of soil-borne Frankia on red alder (Alnus rubra Bong.)Martin, Kendall J. 05 June 2001 (has links)
Inoculation trials were set up in fumigated nursery beds for red alder (Alnus
rubra Bong.) seedling production. Frankia inoculum was applied in eight treatments:
control, nodule suspension, and three levels of cell suspension (strain ArI5) applied
with and without a peat carrier. Seedlings were evaluated at midseason and lifting.
The peat inoculum treatment produced larger seedlings than the other treatments, both
at mid-season and at lifting. The other treatments had little effect on growth. Size
differences paralleled differences in degree of nodulation. Differences in percentage
of seedlings nodulated were most pronounced at midseason, indicating that the
inoculation conferred primarily an early-season advantage.
In a second nursery experiment, Frankia inoculum was applied in a peat mix
carrier, in four treatments: uninoculated control, strain ArI5, strain AvcI1, and
combined dual-inoculum. Seedlings were evaluated at midseason and at lifting.
Frankia DNA from nodules was analyzed by DNA fingerprinting. The controls were
poorly nodulated and grew slowly. The single strain inoculum for ArI5 produced
larger seedlings than for AvcI1, both at mid-season and at lifting. The dual-inoculum
treatment produced larger seedlings than all other treatments. The AvcI1 single-inoculum
nodules primarily produced fingerprints identical to AvcI1, but nodule
fingerprints from all other treatments were dominated by ArI5 patterns.
In a field experiment, nodulation capacity was determined for soils from red
alder stands in the Oregon coast range covering a wide span of ages. Total nitrogen,
total carbon, nitrate, ammonium and pH were measured on the same soil samples.
Soil pH was most highly correlated with nodulation potential, with nitrate content also
significant. Cluster analysis of the sites using these two variables produced two
groups with distinctly different nodulation capacities. The higher capacity cluster was
lower in nitrate and higher in pH than the majority of sites in the lower capacity
cluster. There was general overlap in the age ranges for the two groups but the lower
capacity cluster contained the oldest sites. / Graduation date: 2002
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