Index Catalog // ScholarsArchive@OSU

Leaf area index and productivity in eastern Washington forests

Creator:: McCandlish, Brooks
Abstract:: The relationship between Leaf Area Index (LAI) and current stem-wood production was examined in selected stands in eastern Washington. Stands were sampled with an angle gauge (prism). LAI was estimated from sapwood area; current stem-wood production from DBH, height, and radial increment. Maximum LAI attainable on a given site has...
Resource Type:: Masters Thesis

Stand sapwood basal area : an indicator of tree vigor

Creator:: Oren, Ram
Abstract:: The control that stand leaf area exerts upon individual tree vigor was tested on a heterogeneous, even-aged Douglas-fir stand infected by Phellinus root rot. Tree vigor, or growth efficiency ratio, was defined as the current basal area growth per unit of leaf area. Because of a close relationship between sapwood...
Resource Type:: Masters Thesis

Competitive interactions between Douglas-fir or ponderosa pine and whiteleaf manzanita

Creator:: White, Diane E.
Abstract:: Juvenile Douglas-fir, ponderosa pine, and whiteleaf manzanita growth in southwest Oregon varied with density of co-developing manzanita and presence of herbaceous cover. Plant xylem pressure potential and stomatal conductance of each species was responsive to competition-induced depletion of soil water. Rates varied among species. The best correlations with growth usually...
Resource Type:: Dissertation

The role of density and proportion in allometric equations of Douglas-fir and red alder seedlings

Creator:: Cooke, Pamela T.
Abstract:: Allometric equations are useful tools for predicting tree biomass when direct measurements are impractical. Any factor affecting plant growth can be a significant variable in allometric equations. Density and species proportion are spatial variables that influence tree growth and should be considered when developing allometric equations. This consideration is especially...
Resource Type:: Masters Thesis

The size-density relationship in pure and mixed red alder/Douglas-fir stands and its use in the development of a growth model

Creator:: Puettmann, Klaus J.
Abstract:: The increased interest in red alder (Alnus rubra Bong.) management instigated research in growth and yield and stand development of red alder in pure and mixed red alder/Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stands. This study had the goa1s of evaluating the accuracy of the currently existing growth and yield tools...
Resource Type:: Dissertation

Stocking and growth of noble fir in the Cascade Mountains of Oregon and Washington

Creator:: Thomas, Theodore Bruce
Abstract:: Stocking levels and height growth rates of noble fir and associated species were measured on 51 clearcut study areas within the Pacific silver fir zone of the Oregon and Washington Cascades. Clearcut study areas were approximately 20 years old and had either planted noble fir or natural regeneration of noble...
Resource Type:: Masters Thesis

The influence of stand structure and topography on growth, leaf area and efficiency of young Douglas-fir in the Oregon Coast Range

Creator:: Kaiser, Elisabeth H.
Abstract:: The relative influences of stand structure and topographic variation on volume growth, photosynthetic surface area, and stem growth efficiency were determined for six 17 to 23 year old well stocked stands in the central Oregon Coast Range. Plots were assigned to topographic classes (aspect, slope steepness, and slope position), by...
Resource Type:: Masters Thesis

Leaf area index and specific leaf weight : keys to interpreting canopy photosynthesis and stand growth

Creator:: Oren, Ram
Abstract:: Two physiological factors are of major importance to tree and stand growth: (1) the photosynthetic rate of foliage and (2) the amount of foliage. If carbohydrate allocation patterns remain constant, stand growth should be related directly to total canopy photosynthesis. From a literature analysis I assess methods of relating photosynthetic...
Resource Type:: Dissertation

Water stress, fertilization and light effects on the growth of nodulated, mycorrhizal red alder seedlings

Creator:: Koo, Chang Duck
Abstract:: Red alder (Alnus rubra Bong.) seedlings fertilized with NH4NO3 or inoculated with a pure culture Fran/cia and inoculated with live or dead spores of the mycoirhizal fungus Alpova diplophloeus (Zeller & Dodge) Trappe & Smith were grown in a growth chamber or in a greenhouse for six months Frankia inoculation...
Resource Type:: Dissertation

Autecological studies of two annual herbs, Senecio sylvaticus and Epilobium paniculatum : effects of biotic and abiotic factors

Creator:: Geyer, Melora Arnason
Abstract:: I used greenhouse and field studies to investigate how intraspecific and interspecific competition, soil disturbance, and fertilization affect the biomass and reproductive output of Senecio sylvaticus and Epilobium paniculatum, common winter annuals which invade and dominate western Cascades forests during the first two seasons after clearcutting and slashburning. Field work...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Leaf area index and productivity in eastern Washington forests

Stand sapwood basal area : an indicator of tree vigor

Competitive interactions between Douglas-fir or ponderosa pine and whiteleaf manzanita

The role of density and proportion in allometric equations of Douglas-fir and red alder seedlings

The size-density relationship in pure and mixed red alder/Douglas-fir stands and its use in the development of a growth model

Stocking and growth of noble fir in the Cascade Mountains of Oregon and Washington

The influence of stand structure and topography on growth, leaf area and efficiency of young Douglas-fir in the Oregon Coast Range

Leaf area index and specific leaf weight : keys to interpreting canopy photosynthesis and stand growth

Water stress, fertilization and light effects on the growth of nodulated, mycorrhizal red alder seedlings

Autecological studies of two annual herbs, Senecio sylvaticus and Epilobium paniculatum : effects of biotic and abiotic factors

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