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 20 of 58 for “"red maple"”.
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Proteomic Evaluation and Cytotoxicity of Red Maple (Acer rubrum) Leaves
<p>Red maple (<em>Acer rubrum</em>), also known as swamp, water or soft maple, is endemic to eastern and central North America and was widely used as traditional medicine by the first peoples. Commercially, its well-known products include maple syrup and high-quality lumber. The potential medicinal …
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Assessing evapotranspiration rates of a Mid-Atlantic red maple riparian wetland using sap flow sensors.
… (ET) of exposed trees, ET rates of a first-order red maple riparian wetland were assessed with thermal dissipation probes during the 2002 growing season to address: a) if edge trees transpire more water daily than interior trees, b) correlations among sap flow rates and energy balance-derived …
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Growth and stand dynamics of Red maple-dominated forests in the Upper Great Lakes Region, USA
Red maple (Acer rubrum L.) was historically a common but not abundant tree species in North American temperate forests. Over the last several decades it has increased in abundance on upland sites throughout its range and today is perhaps the single most abundant tree species in eastern North …
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Influences of elevated atmospheric CO₂ and water stress on photosynthesis and fluorescence of loblolly pine, red maple, and sweetgum
… While drying out, photosynthesis was measured with a closed system (LI-COR, Inc. Lincoln, NB) and fluorescence was measured with a portable fluorescence measurement system (P.K. Morgan Instruments, Inc Andover, MA). No species showed significant increases In quantum yields or decreases in …
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The effects of rhizosphere inundation on the growth and physiology of red maple (Acer rubrum L.) seedlings derived from wet and dry sites
Red maple seedlings grown from fruits collected from matched wet and dry sites from three physiographic regions of Virginia were flooded to test whether red maple seedlings derived from wet sites are affected differently by flooding than are seedlings derived from dry sites. Thirteen weeks of soil …
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Stand dynamics and gas exchange in loblolly pine and hardwood seedling stands: impact of elevated carbon dioxide, water stress and nutrient status
… in mixed stands with hardwood species including red maple (<u>Acer rubrum</u>) and sweetgum (<u>Liguidambar styraciflua</u>) across much of the southern United States. Rising atmospheric CO₂ concentrations over the next several decades could influence competitive interactions between these …
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Spatial and temporal analysis of radial growth in an Appalachian watershed
… dendrochronological study used dated and measured tree-ring data to examine relationships between radial growth and climate for four hard wood species, yellow-poplar, northern red oak, chestnut oak and red maple, growing on contrasting topographic aspects of a watershed in north-central West …
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Effects of Soil Amendments and Biostimulants on the Post-transplant Growth of Landscape Trees
… amendments at planting is one of the time-honored traditions in horticulture, although their effectiveness has been questioned by many. Recently, humate and humate-based products, generally known as biostimulants, have been marketed to increase transplant success. In this study, three …
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Factors affecting plant community composition and dynamics in the Ossipee Pine Barrens, New Hampshire
… stems and stumps. Future (2052) vegetation was predicted by current sapling (<10 cm dbh and ≥1 m tall) relative densities.</p><p>Cluster analysis produced three community types from 121 STA's: pitch pine, mixed pine-hardwoods, and red maple. Pitch pine communities comprised 63% of sites in …
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Interactive Effects of Imazapyr plus Triclopyr Ester and Imazapyr plus Glyphosate Mixtures on Woody Weed Seedlings
… alata), sweetgum (Liquidambar styraciflua), red maple (Acer rubrum), black locust (Robinia psuedoacacia), loblolly pine (Pinus taeda), water oak (Quercus nigra) and cabbage palmetto (Sabel palmetto). The seedlings were rapidly screened and percent mortality, height and dry weight measurements …
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The available nutrients in selected deer browse species growing on different soils
… black locust (Robina pseudoacacia), and red maple (Acer rubrum) were collected at two-month intervals on study areas whose soils had arisen from either Brallier, Clinton, Huntersville chert, or Martinsburg shale geological formations. A proximate analysis was run on each browse …
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Stream functional response to mountaintop removal and valley fill coal mining
… central Appalachians. During MTRVF several hundred meters of overburden are removed to access coal seams, and excess rubble is dumped into adjoining valleys and streams. Filling valleys eliminates stream headwaters and may result in loss of stream ecosystem functions, which are dependent on …
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Influence of Transplanting Practices on Growth and Embolism Levels For Urban Tree Species
… lead to restriction of stem water flow, thereby reducing growth. Therefore, this dissertation (5 experiments) was undertaken to determine if certain transplanting practices affect embolism dynamics and plant growth of selected urban tree species. Embolism was estimated based on reductions in …
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Effect of time from treatment to disturbance on woody plant control with triclopyr, picloram and/or 2,4-D
… to use target-plant and environmental data to predict chemical efficacy. A combination of triclopyr and picloram at 2 and 1 lb ai/ac, respectively, each gave the best overall control of hardwood brush. The amount of time required to obtain the optimum chemical control, presumably related to …
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Fenuron in the management of white pine
… in the removal of the hardwoods. There was a reduction of 59% of pines over six feet tall and an increase of 45% of pines less than six feet tall. Red maple and the oaks were the species most susceptible to the treatment; whereas, chestnut, sassafras, and black locust were the least …
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Ecological Impact of Glaze Storm Damage in an Appalachian Oak Forest
… across the topographic categories, such as red maple, while some species varied little, like blackgum. Basal area was reduced 6% and varied due to species and topography. Where glaze damage was severe, gaps in the forest canopy were created. Gap sizes and the effects of gap size and …
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Impacts of oak-focused silvicultural treatments on the regeneration layer nine years post-treatment in the southern Appalachian Mountains of North Carolina
… volume, an oak regeneration bottleneck has occurred throughout its range in recent decades. Subsequently, as oak overstory is being harvested, rarely is oak recruited into the overstory to maintain the historic dominance of overstory oak. In the absence of fire and subsequent canopy closure, …
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Effect of season of harvest and site quality on hardwood regeneration on the Virginia Piedmont
… as well as large amounts of undesirable red maple and sourwood. In stands under even-aged silviculture, season of harvest can be used as an effective management tool to favor different species compositions. If oak or other hardwood production is the management objective a dormant season …
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