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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 56 for “"Site Quality"”.
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Soil productivity model to assess forest site quality on reclaimed surface mines
… of stand density and not an indication of site productivity. There exists a need to evaluate mine soils based on their capability of growing merchantable timber. This model would aid the reclamation process by providing a means for assessing mine soils based on their quality and …
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Effect of season of harvest and site quality on hardwood regeneration on the Virginia Piedmont
… of all classes of regenerants on better sites indicates control will be more difficult.
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Study of the properties, classification, and woodland site quality for high elevation soils in western Virginia
… Washington National Forest reveal woodland site quality of timber stands to be higher than expected for the soils traditionally mapped in the area. Assessment of soil temperature data indicates the mesic-frigid boundary occurs at approximately 1200 m. This boundary is not absolute, and …
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Site Quality Classification for Mapping Forest Productivity Potential on Mine Soils in the Appalachian Coalfield Region
… This study was conducted to create a forest site quality classification system to be used to evaluate the potential productivity of specific tree species on mine soils. High soil bulk density is the most common limitation on mine soils and methods to efficiently measure this property were …
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The aquatic macrophyte Vallisneria americana as a biomonitor of site quality in Great Lakes areas of concern.
… be used as an effective biomonitor of overall site quality in stressed aquatic ecosystems. The leaf-to-root surface area ratio was determined for samples of V. americana collected from 225 microsites within 12 Areas of Concern (environmentally contaminated areas designated by the International …
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A design science approach to developing and determining web site quality dimensions for the public accounting profession
… (24/7). Thus there is a need to assess the quality of their web site. This study developed an instrument for measuring PA web site quality based on an extensive literature review which identified the previously widely used "WebQuaL (TMI)” questionnaire but extended it to four quality …
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Improving Site Quality Estimates in the Upland Hardwood Forests of the Southern Appalachians with Environmental and Spatial Modeling
… are needed based on the characteristics of the site to quantify the site quality where no accurate maps of site quality exist. Three studies were conducted to achieve this objective. The first study tested if independent measures of forest productivity, based on vegetation and environment, in a …
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Soil and plant water stress in an Appalachian oak forest: its relationship to topography and forest site quality
A forest site quality index (FSQI) based on topographic parameters of aspect, slope inclination and slope position was used to investigate soil moisture and plant water stress relationships on the southeast face of Potts mountain in Craig County, Virginia. Topographical effects on available water …
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Soil resource heterogeneity and site quality in Southern Appalachian hardwood forests: Impact of decomposing stumps, geology and salamander abundance
… vs. a soil auger for estimating soil depth and site quality and 3) to evaluate how eastern red-backed salamanders (Plethodon cinereus) affect N-availability. For the stump study, results show that decomposing stumps occupy approximately 1.2% of the total soil volume and constitute 4% and 10% of …
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Soil Morphological, Physical, and Chemical Parameters Affecting Longleaf Pine (Pinus palustris) Site Quality and Ecosystem Restoration Potential in East Texas
… the re-establishment of this species on suitable sites. However, many attempts have been unsuccessful in re-establishment, likely in part due to the lack of emphasis on selection of suitable soils. Historically, longleaf pine was found on soils with a wide range of soil properties, including …
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Ecological site quality, site index, and height growth of white spruce stands in the sub-boreal spruce zone of British Columbia
… to quantify the relationship between ecological site quality and white spruce [Picea glauca (Moench) Voss] height growth, vegetation, soil, foliar nutrient, and stem analysis data were obtained from 102 white spruce-dominated stands across a wide range of sites throughout the Sub-Boreal Spruce …
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Site quality factors affecting Acer saccharum, Quercus rubra and Quercus alba abundance and height growth rates in young even-aged stands located in central Missouri
… characteristics and stand characteristics at 44 sites. The data and analysis showed that sugar maple abundance is positively correlated with soil base saturation and height growth rate is positively correlated with AWC. White oak abundance was negatively correlated to soil base saturation. …
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Model-based Tests for Standards Evaluation and Biological Assessments
… Water Act requires agencies to monitor aquatic sites on a regular basis and evaluate the quality of these sites. Sites are evaluated individually even though there may be numerous sites within a watershed. In some cases, sampling frequency is inadequate and the evaluation of site quality may …
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The correlation between available deer browse, forest cover type, and forest site
… of a particular forest cover type and several site quality measurements. The purpose of the study was to determine if weights of browse per acre could be estimated reliably by utilizing easily obtained site quality measurements instead of clipping and weighing browse. Eight site quality …
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Framework for the Adoption of Online Banking
… (H6)structural assur- ance and (H7) perceived site quality. These hypotheses were tested experimentally through a questionnaire which was analyzed using SPSS Version 14 program. The results showed that (H1) personal information, (H2) personal experience, (H3) dis- position to trust, (H4) …
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Growth and demography of Quercus coccinea and Q. prinus ramets and genets after clearfelling
… scarlet and chestnut oak were examined on three sites at ages 1-2 (YRI-2), 4-5 (YR4-5) and 7-8 (YR 7-8). Based on a test of the older site with the younger using 2-year-old data, it was concluded that the two populations do not represent a chronosequence and stands of scarlet and chestnut oak …
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A NEW SITE INDEX MODEL FOR INTENSIVELY MANAGED LOBLOLLY PINE (Pinus taeda) PLANTATIONS IN THE WEST GULF COASTAL PLAIN
… prescriptions to maintain or improve the site quality of plantations and natural forests. Choosing the most appropriate silvicultural prescriptions can further increase the site quality of plantations or natural forests. The quality of a forest site can be estimated by several means, …
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Focusing on consumer-to-consumer trust in electronic commerce with age and gender factors
… propensity to trust and perception of web site quality, and external facts including other's trust of buyers/sellers and third party recognition would affect an individual's trust in C2C e-commerce. This research extended this model of an individual's trust in C2C e-commerce to include age …
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