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Showing 1 to 20 of 21 for “"Jefferson National Forest"”.
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Public Understandings of Environmental Quality: A Case Study of the Jefferson National Forest Planning Process
… conditions that become the goals and policies of forest management - and acknowledging the "middle nature".
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A comparison of computer simulation techniques in depicting and communicating the visual impacts of timber harvesting in the Jefferson National Forest
… grid perspectives, has been in use by US Forest Service Landscape Architects who use it to determine the visual impact of a proposed harvest unit and manipulate the layout to reduce the impact. New programs in video imagery offer the opportunity to design harvest layouts on a more …
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Collaborative Interface Modeling of Fuel Wood Harvesting Practices: Residential NIPF Landowners of the Jefferson National Forest Wildland/Urban Interface, Montgomery County, Virginia
Residential non-industrial private forest (NIPF) owners within the Wildland/Urban interface are an increasingly important forest owner demographic. An increase in rural residential land use is fragmenting historically large contiguous forestlands. Consequently resource management has become …
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Terrestrial Salamanders in southern Appalachain Harwood Forests: Relative Abundance, Nutritional Condition, and Response to Silvicultural Practices
… abundance before harvest at 5 sites in the Jefferson National Forest of southwest Virginia and compared the effects of 7 silvicultural treatments on terrestrial salamander richness and relative abundance at 1 site.
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An Axis Through Nature: Ranger Station at Pandapas Pond
… and natural environment of Pandapas Pond and the Jefferson National Forest. Although the form of the intervention embraces the landscape and natural land formations, its purpose is to take the visitor along a path that translates the experience from one of participation to that of observation of …
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Desired Future Conditions of Riparian Areas on Southeastern National Forests
… lands. I evaluated DFCs of riparian areas on national forests in the southern Appalachian mountains and evaluated a process for involving the public in development of DFCs for riparian areas on the Jefferson National Forest. First, I identified the major components, structures, and functions …
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Universal design in forest recreation: planning for a transition towards the accessibility of U.S. National Forest recreation areas
… planning for accessibility to developed National Forest recreation sites. Accessibility is defined in terms of access to opportunities for persons with disabilities as mandated by the Americans with Disabilities Act of 1990. The subject of the study is the Mount Rogers Ranger District of …
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Reliability of avifauna information in a computerized fish and wildlife information system
… within the Blacksburg Ranger District of the Jefferson National Forest in Southwestern Virginia. These were Mixed (oak-pine) Seedling/Sapling, Mixed Pole, Mixed Mature, Deciduous Pole, Deciduous Mature, and Coniferous Pole. Three stands of each type, each 8-20 hectares in area, were chosen …
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Increasing the efficiency of multiple-use inventory procedures
… analysis techniques were employed. Data from the Jefferson National Forest in Virginia were analyzed but no strong association between variables currently being observed was detected. The second approach was to define the decisions that are to be made and the variables necessary to make these …
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Biological studies of shiitake logs and associated mycoflora in the Virginia highlands
… in stressed and non-stressed oak trees in the Jefferson National Forest Montgomery County, Virginia. Twenty-six samples from Poverty Creek (non-stressed) and 23 from Brush Mountain (stressed) were studied. Fifty percent of the samples from the non-stressed were sterile, 23% yielded Paecilomyces …
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Using linear programming to improve unit planning on the Appalachian National Forests
… use was developed for the High Knob Unit of the Jefferson National Forest. The model was intended to be a pilot study for the development of similar models for other units in the Appalachians. The model was developed to provide information about trade-offs between timber, recreational activities, …
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Modeling winter habitat for white-tailed deer in southwestern Virginia
… deer densities on eleven study areas on the Jefferson National Forest, southwestern Virginia. Habitat data were collected on the same transects in July-September, 1985. Additional habitat information was measured from aerial photographs and USDA Forest Service compartment maps. These data …
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Relationships between motivation and psychological distance in a forest recreation environment
… groups at the Cascades Nature Trail in the Jefferson National Forest, Virginia were unobtrusively recorded between September 26 and November 7, 1976. Differences between the hiking times of groups were analyzed by means of Wilcoxon's Rank Sum Test, the Ansari-Bradley Dispersion Test, and the …
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Developing a spatial decision support system for timber sale planning on a national forest
Resource planning on National Forests has become a complex and time consuming process. On the Jefferson National Forest (JNF), "Opportunity Area Analysis" (OAA) is used to implement the resource use mandates of the JNF Land and Resource Management Plan. Timber sale planning is an important …
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Avian population densities, habitat use, and foraging ecology in thinned and unthinned hardwood forests in Southwestern Virginia
… and habitat use in Appalachian mixed-hardwood forests during 1984 and 1985 at three thinned and three unthinned stands in the Jefferson National Forest, southwestern Virginia. Densities of shrubs, saplings, trees, and snags, canopy and ground cover, and foliage volume were the structural …
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Effects of group selection and clearcut openings on wildlife in Appalachian hardwood forests
… system to clearcutting in Appalachian hardwood forests, but there is little, if any, information on the effects of group selection on wildlife. Thus, I studied and compared the effects of group selection and clearcut openings on wildlife in the Jefferson National Forest, Virginia. Breeding birds …
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Developing outdoor map design guidelines using a real-world wayfinding task
… a field study in an established trail network in Jefferson National Forest. Six maps with three different contour representations (contour lines, shaded relief, and schematic) and two color codes (color and black-and-white) were tested for wayfinding performance. Thirty-six participants of …
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Wildland Fire in the Central Appalachian Mountains: Impacts on Above- and Belowground Resources
… has increased over the past ten years as forest managers on public lands have increasingly used prescribed fire to meet management goals. These goals include hazardous fuel reduction, wildlife habitat restoration and management, and control of less desired vegetation. Research is needed to …
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Effects of acidification on the crayfish Cambarus bartonii bartonii in southern Appalachian streams
… 1985 at Coweeta Hydrologic Laboratory (U. S. Forest Service Southeastern Experimental Station) in Otto, North Carolina, to describe selected population parameters and life history events for this species in two first-order streams. Laboratory experiments were conducted using crayfish from …
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The etiology of the decline of eastern white pine (Pinus strobus L.) on Virginia landscapes: a survey of stress factors
… consisted of trees from a site in the Jefferson National Forest (VA) and decline habitat observations consisted of trees from mostly western Virginia landscapes. After thorough study for a period of two years, a group of growth indicators were weighed against a group of site quality …
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