Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"balsam fir"”.
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The effects of harvest intensity and seedbed type on germination and early survival of balsam fir and white spruce in the southern boreal forest
… seedbed type on germination success and early (first summer) survival for balsam fir ( Abies balsamea (L.) Mill) and white spruce ( Picea glauca (Moench) Voss) were examined. The harvest intensities canopies included a 1/3 rd and 2/3 rd partial cut, a clearcut and a control (full canopy). The …
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A preconcentration-spectographic method for the determination of trace elements in plant materials and the application of the biogeochemical method at the Silver Mine lead deposit Cape Breton, Nova Scotia
… lower bark, upper bark, twigs and needles of balsam fir and black spruce, were determined.Lead anomalies were found in all materials, which accurately outlined the zone of mineralization. Superjacent and lateral hydromorphic anomalies were shown by zinc, silver, chromium and nickel in some or …
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WOODLAND CARIBOU AS ECOLOGICAL DRIVERS OF FIR WITCHES' BROOM INFECTIONS ON THE SLATE ISLANDS
… This rust alternates between chickweeds and balsam fir, where it causes a broom deformity. My study identified factors influencing the spread of brooms across a remote archipelago and evaluated whether caribou affected the spread. Brooms were sampled in 240 5-m radius plots in eight sites …
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Browse Availability, Bite Size, and Effects of Stand Age on Species Composition and Browse Density for Moose in Northeastern Minnesota
… in young stands while hazel, mountain maple, and balsam fir (winter) or juneberry (summer) were common in older stands. Browse density also changed with stand age, but the changes in species composition and browse density were similar along foraging paths and within randomly selected regenerating …
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Prediction of Foliar Biochemistry in a Boreal Forest Canopy Using Imaging Spectroscopy and LiDAR Data
… forest composed of black and white spruce, balsam fir, northern white cedar, white birch, and trembling aspen was investigated. Specifically, imaging spectroscopy (IS) and light detection and ranging (LiDAR) are used to model the foliar N:P ratio, macronutrients (N, P, K, Ca, Mg) and …
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Site factors determining epiphytic lichen distribution in a dieback-affected spruce-fir forest on Whiteface Mountain, New York
In einem Abies balsamea-Picea rubens-Bestand am Whiteface Mountain im US-Bundesstaat New York wurde die epiphytische Diversität der Flechtenvegetation zwischen gesunden und immissionsgeschädigten Rotfichten (Picea rubens) sowie zwischen Rotfichte und Balsamtanne (Abies balsamea) miteinander …