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 13 of 13 for “"timber management"”.
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Using linear programming to integrate timber management and wildlife management planning
… to provide information about trade-offs between timber production and wildlife practices for Maryland's Pocomoke State Forest. The information was to be used as an aid by the Forest managers to find the combination of desired products which would most closely meet the overall goal for the Forest. …
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Effects of Forestry Streamside Management Zones on Stream Water Quality, Channel Geometry, Soil Erosion, and Timber Management in the Virginia Piedmont
… include determining if a 50-foot streamside management zone (SMZ) as described in the Virginia BMP Manual (VDOF 2002) is generally sufficient to protect stream water quality, riparian soils, and stream bank integrity in headwater streams where forest harvesting has taken place, as well as …
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The Effects of Herbicide on the Endangered Herb Baptisia Arachnifera and Preliminary Nutrient Survey of Leaf Tissue and Soil
… populations exist in areas now managed for timber. This study investigated the effects of Imazapyr, an herbicide commonly used in timber management, on health and vitality of <em>B. arachnifera </em>under both field and greenhouse conditions. This study also analyzed leaf and soil samples …
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The Economic Impacts of Forest Timber Methods in Washington State: a Hedonic Approach
… State is one of the nation’s leaders in timber production. This paper establishes literature gap regarding the economic impacts of forest timber management methods. In this research, I employ a data set of 170,141 home sales across eleven counties of western Washington to estimate the …
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Food habits of the Allegheny woodrat (Neotoma magister )
… the ecology of this species is needed for proper management. I described seasonal food habits of the Allegheny woodrat in the Ridge and Valley and Allegheny Plateau physiographic provinces of West Virginia and Virginia using microhistological techniques. In the Allegheny Plateau, the top 5 food …
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Comparing linear programming and mixed integer programming formulations for forest planning on the Naval Surface Weapons Center, Dahlgren, Virginia
… techniques in developing a multiple-use land management plan for a public forest in northeastern Virginia. Linear programming-based timber management scheduling models were constructed utilizing the Model I formulation of Johnson and Scheurman (1977). The models were formulated as mixed …
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Planning for small forest landscapes: facilitating the connection between people and nature
… scenery, nature protection, recreation, privacy, timber production, family legacy, and investment. Despite this variety of purpose and commitment, most materials and workshops designed to assist small forest landowners focus on timber management and forest health and provide little information …
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The long-run timber output potential in eastern Virginia
… Forest Survey Unit 1. The importance of the timber resource to the region's economy has brought about a need for research into the long-run timber prospects. Long-run timber output potentials in eastern Virginia are primarily dependent upon two factors: Prospective changes in commercial …
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The impact of group selection silviculture on timber harvesting cost in the southern Appalachians
National Forest timber management in the southern Appalachians is changing from traditional even-aged management and clearcutting to uneven-aged management and group selection silviculture. Group selection, with its small 1/2-to-2-acre patch cuts widely dispersed throughout a timber stand, has the …
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Reclamation of surface-mined forest land in the southern Appalachians
… on reclaimed surface-mined land for providing timber management opportunities depends on whether or not the land is reclaimed in a manner which creates a productive forest soil. Surveys of tree plantings on land that was mined prior to enactment of the 1977 Surface Mining Control and …
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The effects of tropical forest management on biodiversity and ecosystem functioning
The Effects of Tropical Forest Management on Biodiversity and Ecosystem Functioning Eleanor M. Slade 1. Between 35 % and 50 % of all closed-canopy tropical forest has been lost, and the rate of deforestation continues to increase throughout the tropics. Despite a wealth of literature on the effects …
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Developing Management Guidelines that Balance Cattle and Timber Production with Ecological Interests in the Black Hills of South Dakota
… States (US) economy by providing livestock and timber production. Livestock grazing of forested lands has been widespread throughout the western US since the settlement era, and currently occurs on 51.4 million hectares (ha) representing 16% of all US grazing land and 22% of all US forested land …