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Showing 1 to 16 of 16 for “"tree removal"”.
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Spatio-temporal optimization of tree removal to efficiently minimize crown fire potential
… stands, location of individual cut- and leave-trees after treatments, and the temporal effects of these prescriptions for reducing crown fire potential over time. To address the limitations of current stand-level thinning prescriptions, a computerized approach to optimize individual tree …
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Spatio-temporal optimization of tree removal to efficiently minimize crown fire potential
… stands, location of individual cut- and leave-trees after treatments, and the temporal effects of these prescriptions for reducing crown fire potential over time. To address the limitations of current stand-level thinning prescriptions, a computerized approach to optimize individual tree …
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Nutrient dynamics of the forest floor in an Appalachian oak forest stand following clearcutting and whole-tree removal
… forest stands following clearcutting and whole-tree removal. Samples from the L, F, H, and A₁ layers were collected during June, August, and November of 1979 and 1980. Monthly litterfall was collected from October, 1979, through October, 1980. Soil solution samples were extracted on a biweekly …
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Eastern Redcedar Encroachment In Southern Great Plains Grasslands: Wildlife Consequences And Management Implications
… 2) assess the capacity for experimental tree removal to promote re-colonization of grasslands by associated flora and fauna, and 3) examine the influence of scale on spatial relationships between small-mammal abundance and redcedar cover. During the first phase of my study, I examined …
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Determining Impediments to Gene Flow in a Natural Population of Cornus florida L. Cornaceae, Using Integrative Landscape Genetic Techniques
… on gene flow in the insect pollinated understory tree, Cornus florida L., by combining GIS and landscape genetic techniques (Least Cost Path Analysis, Circuit Theory, and Conditional Genetic Distance). Traditional population genetic analysis indicated pair-wise relatedness was significantly …
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The Effect of Tree Shade and Snowpack Cover on Pavement Surface Temperature
The effects of tree shade on the surface and internal temperature of pavement structures can be significant throughout the year. While much work has been done in researching the influence of tree cover on localized urban heating during hot summer months, less effort has been put towards the …
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Hydrologic Response to Conifer Removal and Upslope Harvest in an Encroached Montane Meadow
… Restoration of these hydrologic systems requires tree removal. Many studies exist that address the issue of conifer encroachment in montane meadows, however, few studies focus on the role that conifer removal plays on the encroaching meadow. Furthermore, few studies exist that document the …
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Tree Canopy Cover Response to Land Development Policies in Fairfax County
Urban tree canopy cover is important because it mitigates negative impacts of urbanization such as urban heat and stormwater. Land development leads to canopy loss through tree removal, but some localities have regulations in place that require trees to be retained or replanted during development. …
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Ecosystem impacts of tamarisk (Tamarix spp.) management in the Arkansas River watershed, Colorado: effects of disturbance and herbicide residues on passive plant community restoration
… combinations of herbicides and mechanical tree removal. Successive chapters detail laboratory, greenhouse and field experiments that determined the ecological impacts of currently used tamarisk control strategies, with a particular emphasis on the effects of herbicide residues on plant …
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A Landscape Approach to Grassland Bird Conservation in the Prairie Pothole Region of the Northern Great Plains
… conserving and creating grasslands, removing trees from the landscape, or both, increase songbird density. Density of many species is positively related to amount of grassland at the smallest scale evaluated (0.5km2), but large grasslands are vital for others whose density is related to …
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A Landscape Approach to Grassland Bird Conservation in the Prairie Pothole Region of the Northern Great Plains
… conserving and creating grasslands, removing trees from the landscape, or both, increase songbird density. Density of many species is positively related to amount of grassland at the smallest scale evaluated (0.5km2), but large grasslands are vital for others whose density is related to …
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Oak regeneration after clearcutting on steep slopes in the ridge and valley province of southwest Virginia
… two-year period following clearcutting and whole-tree removal in eight midslope stands in the Ridge and Valley Province of southwestern Virginia. Oak regeneration was also characterized in several older clearcuts. Height and diameter of oaks of stump sprout origin in the two-year-old stands was …
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Functional traits and resource-use strategies of native and invasive plants in Eastern North American forests
… understory light environments (overstory tree removal) and N availabilities (ammonium-nitrate fertilization) to create a resource gradient across plots each containing 3 invasive and 6 native woody species. Invasive species generally exhibited greater aboveground productivity and …
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Image analysis methods for diagnosis of diffuse lung disease in multi-detector computed tomography
… resulting from lung field segmentation and vessel tree removal, while the second stage performs classification of LP into normal and abnormal tissue types. The segmentation of Lung Field (LF) and vessel tree structures are crucial preprocessing steps for the subsequent characterization and …
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Ground Layer Response to Disturbance in the Pine-Dominated Eastern Foothill Region of West-Central Alberta, Canada
… timber companies were involved in selective tree removal at three different stand percentages (20/40/60%), however, these were not consistent when measured in 2005. This variation in operational logging along with changes over the seven year time period, resulted in strong disparity for each …
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Estimating and Modeling Transpiration of a Mountain Meadow Encroached by Conifers Using Sap Flow Measurements
… practices. Past research has focused on conifer removal as a meadow restoration strategy, but there has been limited work on conifer transpiration in a pre-restoration state. Meadow restoration by conifer removal has the primary goal of recovering sufficient growing season soil moisture necessary …