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Showing 1 to 8 of 8 for “"Harvest intensity"”.
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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
The effects of harvest intensities and 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 …
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Vegetation Responses to Seven Silvicultural Treatments in the Southern Appalachians One-Year After Harvesting
… treatments one growing season after harvesting were examined on seven sites in the southern Appalachian mountains of Virginia and West Virginia. Treatments included: 1) control, 2) understory control by herbicide, 3) group selection, 4) high-leave shelterwood, 5) low-leave …
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Soil Carbon, Nutrients, and Phosphorus Fractions: Responses to Weed Control and Harvest Residual Retention in two 10-Year-Old Douglas-fir (Pseudotsuga menziesii) Stands of the Pacific Northwest
… forest management techniques such as whole-tree harvesting and use of herbicides to control weeds can have an effect on nutrient cycling and nutrient pool sizes in the mineral soil. This study was conducted to measure differences in soil carbon (C), nutrient pools, or phosphorus (P) fractions …
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Productivity and quality of tall fescue and switchgrass under two harvest managements and different harvest intensities
… and switchgrass as influenced by different harvest managements. Switchgrass and tall fescue were studied on a fine-loamy, mixed, mesic Ultic Hapludalf of the Duffield soil series at Blacksburg, VA during 1987 and 1988. Normal harvest management included harvests taken from the first growth …
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Watershed and Streamside Management Zone Characterization in the Allegheny Plateau of West Virginia
… operations. However, the exact width and harvest intensity of SMZs that best protects water quality while allowing for commercially valuable timber harvesting has not been determined. The long-term objective of this study is to characterize SMZs and watersheds before and after harvest with …
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The Influence of Selection Silviculture Biomass Harvesting on Soil Carbon, Nutrients, and Respiration in a Northern Mixed-Deciduous Forest
… in forest structure, silvicultural methods, and intensity and heterogeneity of disturbances. Without a comprehensive understanding of how soil biogeochemical processes respond to different types and intensities of harvesting disturbances, we cannot accurately predict losses and ecological …
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Development of Sustainable Harvest Strategies for Cellulose-Based Biofuels: Harvest Effects on Game Bird Production
… investigated the possible effects of biomass harvest on nesting game birds. Specific objectives of this study in southeastern South Dakota included: (1) quantifying nest success to determine if haying treatments have an impact, (2) determining if haying treatments affect nesting density, (3) …
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The biodiversity and climate impacts of alternative approaches to meeting demands for tropical timber and forest restoration
… dung beetle species changes with yield along a harvest intensity gradient in a 50,000 ha Brazilian Amazon logging concession. I then use these abundance-yield relationships, combined with company-reported logging rates, to evaluate the biodiversity performance of >8000 hypothetical scenarios, …