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Articles 1 - 30 of 30
Full-Text Articles in Forest Management
Predicting Patterns Of Species Presence In Eastern Kentucky Using Fine- And Broad-Scale Site-Species Relationships, Kyra L. Shrout
Predicting Patterns Of Species Presence In Eastern Kentucky Using Fine- And Broad-Scale Site-Species Relationships, Kyra L. Shrout
Theses and Dissertations--Forestry and Natural Resources
Understanding site-species relationships is integral to effective forest management, as landscape factors influence both the presence of mature trees and the regeneration of future trees. This study examined the influence of topographic, soil, and canopy variables on species presence at both fine (i.e., stand-level) and broad (i.e., forest-wide) scales within Robinson Forest, Kentucky. At the fine-scale, using vegetation data from permanent sampling plots, LiDAR-derived topographic data, and historical soils data, the relationships between the species of interest and the landscape variables within a single watershed were analyzed using conditional inference tree (CTree) models. Elevation and slope aspect were the most …
Surface Mining Interacts With Timber Harvesting To Facilitate The Invasion Of Woody Invasive Species In A Temperate Forest Of Central Appalachia, Usa, William Wittenbraker
Surface Mining Interacts With Timber Harvesting To Facilitate The Invasion Of Woody Invasive Species In A Temperate Forest Of Central Appalachia, Usa, William Wittenbraker
Theses and Dissertations--Forestry and Natural Resources
Appalachian forests are subjected to various short- and long-term anthropogenic disturbances. Surface mining is among the most potent drivers of land use change in the Appalachian region, reducing native forest cover and causing landscape fragmentation. Furthermore, the ecological footprint of surface mining could be expanded to adjacent forests, and such spill-over effects may be exacerbated by in-situ forest disturbances such as timber harvesting. However, it remains elusive how these two disturbance agents may be compounded to degrade forest health and landscape integrity. One of the major threats to forest health in the Appalachian forests is the invasive species. Many woody …
Communicating Climate Change: Adaptive Silviculture In Central Appalachian Kentucky, Logan Baker
Communicating Climate Change: Adaptive Silviculture In Central Appalachian Kentucky, Logan Baker
Theses and Dissertations--Forestry and Natural Resources
Climate change communication is an emerging field that requires a multidisciplinary understanding of both climate and social science. Communicating with underrepresented woodland owners about climate change, specifically climate change adaptation in forestry applications, necessitates appropriately adjusted approaches. In Central Appalachian Kentucky, outreach with underrepresented woodland owners on forest adaptation topics has not been examined in depth. The recent establishment of an Adaptive Silviculture for Climate Change research site in the University of Kentucky’s Robinson Forest has created an opportunity to generate regionally specific climate adaptation information for Appalachian Kentucky forests. It is imperative to investigate how best to approach communicating …
Dynamic Patterns Of Resource Selection In Northern Bobwhite Across The Annual Cycle In A Region With Poor Edaphic Conditions, Autumn S. Randall
Dynamic Patterns Of Resource Selection In Northern Bobwhite Across The Annual Cycle In A Region With Poor Edaphic Conditions, Autumn S. Randall
Theses and Dissertations--Forestry and Natural Resources
Developing successful management strategies requires an understanding of how an organism's resource needs change over the course of its life cycle. For almost a century, northern bobwhite (Colinus virginianus) populations have been declining range-wide, mostly as a result of habitat loss and degradation. Resource selection studies conducted at coarse-temporal resolutions and in areas with fertile soils form the majority of current management recommendations for bobwhites. In this thesis, we quantified resource selection patterns for 1,302 bobwhites in a region with poor soil conditions with respect to several common management practices (fire, fallow fields, supplemental feeding, and brush management …
The Long-Term Effects Of Wildfire Severity On Oak-Pine Communities And Their Microclimates, Scott Glenn Culbert
The Long-Term Effects Of Wildfire Severity On Oak-Pine Communities And Their Microclimates, Scott Glenn Culbert
Theses and Dissertations--Forestry and Natural Resources
In the eastern U.S., fire-dependent tree species have historically dominated upland forest communities, but are now experiencing widespread regeneration challenges as a result of 20th century fire suppression policies, and are being replaced by mesophytic species. Wildfires that contain areas of high burn severity may provide an important means of mitigating these challenges and facilitating fire-dependent species regeneration and recruitment into larger size classes. One mechanism by which high-severity fire can accomplish this is by modifying understory microclimate characteristics to be more conducive to these species’ growth. A wildfire within the Daniel Boone National Forest, Kentucky, USA, provided the …
Economics Of Maple Syrup Production In Kentucky, Bobby Thapa
Economics Of Maple Syrup Production In Kentucky, Bobby Thapa
Theses and Dissertations--Forestry and Natural Resources
Maple syrup production is traditionally associated with New England regions in the United States, but there is growing interest in expanding it to other regions with suitable environmental conditions, including Kentucky. This study presents an in-depth analysis of the potential production and economic impacts of maple syrup in Kentucky using a multi-method approach. First, the study applies a stochastic production model to assess the effects of climatic and tree variables on maple syrup yield. The results reveal that several variables, including the number of maple trees, taps, temperatures, tapping season length, and time, significantly affect maple syrup yield. Second, input-output …
Effects Of Forest Reclamation And Landscape Features On Avian Occupancy, Species Richness, And Abundance In Appalachia, Rebecca N. Davenport
Effects Of Forest Reclamation And Landscape Features On Avian Occupancy, Species Richness, And Abundance In Appalachia, Rebecca N. Davenport
Theses and Dissertations--Forestry and Natural Resources
The Forestry Reclamation Approach (FRA) is a recently developed coal mining reclamation method that emphasizes best management practices in forestry, such as the planting of native trees and shrubs. Although the FRA is expected to benefit wildlife, no studies have empirically examined the effects of the FRA on avian species. My study aimed to identify which reclamation approaches and/or landscape features promote breeding songbirds, particularly mature forest avian guilds and species of conservation need. I conducted point count surveys in the Appalachian Mountains of eastern West Virginia and assessed differences in avian occupancy, species richness, and species abundance between four …
Pond-Breeding Amphibian Responses To Wetland Creation And Reforestation On A Legacy Surface Mine In The Monongahela National Forest, Lauren Breanna Sherman
Pond-Breeding Amphibian Responses To Wetland Creation And Reforestation On A Legacy Surface Mine In The Monongahela National Forest, Lauren Breanna Sherman
Theses and Dissertations--Forestry and Natural Resources
Surface mine reclamation has been an evolving practice since the Surface Mining Control and Reclamation Act was passed in 1977, holding mining companies accountable for returning ecological function to areas directly impacted by mining activities. One recent method of reclamation, the Forestry Reclamation Approach (FRA), aims to enhance reforestation and ecosystem function through the creation of wetlands, as opposed to traditional methods that often revert land to grasslands. However, wildlife response to FRA has rarely been investigated. The goal of this project was to analyze the effects of the four treatment types, FRA in two chronosequences, natural regeneration, and unmined …
Eight-Year Regeneration Response To Gap-Based Irregular Shelterwood Practices In Oak Dominated Stands Near Berea, Kentucky, Brooke Elizabeth Gauthier
Eight-Year Regeneration Response To Gap-Based Irregular Shelterwood Practices In Oak Dominated Stands Near Berea, Kentucky, Brooke Elizabeth Gauthier
Theses and Dissertations--Forestry and Natural Resources
This research examined regeneration dynamics following gap-based irregular shelterwood practices in intermediate productivity oak (Quercus)-dominated stands located in Berea College Forest, Berea, KY, USA. Established in 2012, the study includes 12 experiment units comprising a circular harvest gap (30 m radius) and a matrix zone delineated around the circumference of the gap, which extended 30 m from the gap edge into the adjacent forest. A midstory removal treatment was performed within six of the experiment units’ matrices, while six matrices were left untreated (control). Belt transects extending 60 m from gap center to the end of the matrix zone were …
Sustainability And Economics Of White Oak (Quercus Alba) Timber Supply In Kentucky, Gaurav Dhungel
Sustainability And Economics Of White Oak (Quercus Alba) Timber Supply In Kentucky, Gaurav Dhungel
Theses and Dissertations--Forestry and Natural Resources
Sustained timber supply relies upon balanced forest age distribution, where the level of harvesting and mortality is compensated by regeneration and growth among younger age classes. However, current forest inventory trends from the white oak growing region reveal sustainability threat from declining white oak regeneration and recruitment leading to disproportionate inventory structure. Consequently, there exists growing concern among stakeholders on long-term sustainability of white oak timber and its economic implications, particularly in Kentucky, because of the significance of the species to the state’s economy. This research aims to examine past and current inventory levels of white oak in Kentucky using …
The Impacts Of Imazapic On Garlic Mustard And Non-Target Forest Floor Vegetation In Central Kentucky’S Hardwood Forests, Pavan Kumar Podapati
The Impacts Of Imazapic On Garlic Mustard And Non-Target Forest Floor Vegetation In Central Kentucky’S Hardwood Forests, Pavan Kumar Podapati
Theses and Dissertations--Forestry and Natural Resources
Alliaria petiolata is an invasive biennial herb that poses a substantial threat to various ecosystems across the United States. Imazapic herbicide can control A. petiolata infestations, but there is limited peer-reviewed data on impacts of pre-emergent imazapic spraying to forest floor communities. This research examined the impacts of pre-emergent imazapic (0.84 kg/ha) with Pentra-Bark® surfactant on ground cover of A. petiolata and the spring perennials Claytonia virginica and Erigenia bulbosa. Experimental populations in randomized blocks within two forest stands in central Kentucky received the following treatments at 0.84 kg ai/ha: imazapic with Pentra-Bark®, glyphosate with Pentra-Bark®, Pentra-Bark® alone, and …
The Role Of Fire And A Fire-Free Interval In The Restoration Of Upland Oak Communities On The Cumberland Plateau, Kentucky, Jordan Winkenbach
The Role Of Fire And A Fire-Free Interval In The Restoration Of Upland Oak Communities On The Cumberland Plateau, Kentucky, Jordan Winkenbach
Theses and Dissertations--Forestry and Natural Resources
The decline of upland oak (Quercus spp.) communities in our eastern forests has been attributed to the loss of periodic disturbance after decades of fire suppression. As land managers have begun to reintroduce fire, effects on oak regeneration and species composition have varied widely, making it apparent that our understanding of how fire can aid in oak forest management needs refinement. Restoring upland oak communities requires decreasing stand density and opening of the canopy to release shade-intolerant oaks in the understory. This necessitates an extended fire-free interval to allow these oaks to be recruited into larger size classes and …
Long-Term Effects Of Crop-Tree Release On The Growth And Quality Of Upland White Oak Stands, Philip Jay Vogel
Long-Term Effects Of Crop-Tree Release On The Growth And Quality Of Upland White Oak Stands, Philip Jay Vogel
Theses and Dissertations--Forestry and Natural Resources
The alteration of historical disturbance regimes, forest parcelization, and varying goals among landowners all present challenges to oak management in the eastern U.S. Foresters and landowners need tools to promote oak sustainability that are applicable on small forestland holdings and within complex management plans. From this perspective, this research evaluates a crop-tree release study installed in southeastern Kentucky in 1983. The experiment includes four, 2-acre replications of three treatment levels: 20 crop-trees per acre, 34 crop-trees per acre, and a control treatment in which crop-trees were selected but not released. Half-acre measurement plots were installed at the outset of the …
Effects Of Shelterwood And Patch Cut Harvests On A Post White-Nose Syndrome Bat Community In The Cumberland Plateau In Eastern Kentucky, Phillip Lee Arant
Effects Of Shelterwood And Patch Cut Harvests On A Post White-Nose Syndrome Bat Community In The Cumberland Plateau In Eastern Kentucky, Phillip Lee Arant
Theses and Dissertations--Forestry and Natural Resources
The impact of shelterwood and patch cuts harvests on bat communities was tested at three sites in Eastern Kentucky. Shelterwood harvests had 50% of the basal area and understory removed to create a uniform spacing of residual trees. Patch cuts had 1-hectare circular openings created to remove 50% of the basal area creating an aggregated spacing of residual trees. Acoustic detectors were deployed to assess activity levels pre-harvest. Sites were then sampled from 1 – 2 years post-harvest to determine differences. Pre-harvest data revealed little acoustic activity for the Myotis spp. at two sites. The remaining site had high activity …
Spatial And Temporal Patterns Of Invasive Exotic Plant Species In Response To Timber Harvesting In A Mixed Mesophytic Forest Of Eastern Kentucky, Benjamin Christopher Rasp
Spatial And Temporal Patterns Of Invasive Exotic Plant Species In Response To Timber Harvesting In A Mixed Mesophytic Forest Of Eastern Kentucky, Benjamin Christopher Rasp
Theses and Dissertations--Forestry and Natural Resources
Invasive exotic species (IES) responses to silvicultural treatments eight years after timber harvesting were examined and compared to one-year post-harvest IES survey in University of Kentucky’s Robinson Forest. The temporal effects of harvesting were further compared between harvested and non-harvested watersheds. Analyses were performed to identify IES spatial distribution and determine the relationships between IES presence and disturbance effects, biological, and environmental characteristics. IES prevalence was higher in the harvested watersheds and was influenced by canopy cover, shrub cover and disturbance proximity. Ailanthus altissima and Microstegium vimineum presence in the study area has decreased over time. Comparing to the 1-yr …
Multi-Camera Surveillance System For Time And Motion Studies Of Timber Harvesting Operations, Rafael Luiz Santos De Freitas
Multi-Camera Surveillance System For Time And Motion Studies Of Timber Harvesting Operations, Rafael Luiz Santos De Freitas
Theses and Dissertations--Forestry and Natural Resources
Timber harvesting is an important activity in the state of Kentucky; however, there is still a lack of information about the procedure used by the local loggers. The stump to landing transport of logs with skidders is often the most expensive and time-consuming task in timber harvesting operations. This thesis evaluated the feasibility of using a multi-camera system for time and motion studies of timber harvesting operations. It was installed in 5 skidders in 3 different harvesting sites in Kentucky. The time stamped video provided accurate time consumption data for each work phase of the skidders, which was used to …
Efficacy Of Herbivore Exclusion On Planted Tree Seedling Vitality On A Reclaimed Surface Mine In Eastern Kentucky, Zachary J. Hackworth
Efficacy Of Herbivore Exclusion On Planted Tree Seedling Vitality On A Reclaimed Surface Mine In Eastern Kentucky, Zachary J. Hackworth
Theses and Dissertations--Forestry and Natural Resources
Conventional Appalachian surface-mine reclamation techniques repress natural forest regeneration, and tree plantings are often necessary for reforestation. Reclaimed Appalachian surface mines harbor a suite of mammal herbivores that forage on recently planted seedlings. Anecdotal reports across Appalachia have implicated herbivory in the hindrance and failure of reforestation efforts, yet empirical evaluation of herbivory impacts on planted seedling vitality in this region remains relatively uninitiated. First growing-season survival, height growth, and mammal herbivory damage of black locust (Robinia pseudoacacia L.), shortleaf pine (Pinus echinata Mill.), and white oak (Quercus alba L.) are presented in response to varying intensities …
Vegetation Response To Repeated Prescribed Burning And Varied Wildfire Severity In Upland Forests On The Cumberland Plateau, Kentucky, Zachary W. Poynter
Vegetation Response To Repeated Prescribed Burning And Varied Wildfire Severity In Upland Forests On The Cumberland Plateau, Kentucky, Zachary W. Poynter
Theses and Dissertations--Forestry and Natural Resources
As a result of decades of fire suppression, oaks (Quercus L.) and other disturbance-dependent tree species are experiencing widespread regeneration failure. Today, fire takes the form of relatively low to moderate intensity prescribed fire, used to restore fire adapted ecosystems, and wildfires which often vary in severity. I investigated long-term changes to forest structure and composition in response to repeated prescribed burning followed by an extended period of no fire. Burning reduced total basal area, midstory stem density and sapling stem density. However, the fire-free interval significantly increased sapling layer stem densities of oaks and competitor species. This research …
Establishment Of American Chestnuts On Surface Mined Lands In Appalachian Coalfields Region, Michael E. French
Establishment Of American Chestnuts On Surface Mined Lands In Appalachian Coalfields Region, Michael E. French
Theses and Dissertations--Forestry and Natural Resources
American chestnut (Castanea dentata (Marsh.) Borkh.) was an dominant hardwood throughout eastern North America until the introduction of an exotic fungus (Cryphonectria parasitica (Murr.) Barr) in the early 20th century devastated American chestnut populations. Chestnuts that have been bred for blight resistance have recently become available for testing. Due to the overlap of American chestnut’s natural range and the Appalachian coalfields region, the potential establishment of founder populations of blight-resistant chestnuts on reclaimed coal surface mines has recently gained attention. This work examined chestnut establishment on a surface mine in eastern Kentucky to assess factors controlling early …
Managing Upland Oak Forests With Disturbance And The Implications For Non-Native Species Invasions, Devin E. Black
Managing Upland Oak Forests With Disturbance And The Implications For Non-Native Species Invasions, Devin E. Black
Theses and Dissertations--Forestry and Natural Resources
Natural and anthropogenic disturbances have influenced forest stand structure and affected species compositions within forests for millennia. Disturbances such as fire, severe weather events, and forest management practices may result in significantly reduced tree biomass. Thus, these disturbances may lower canopy closure and stem density in support of forest management goals, such as open oak woodland restoration, or promote an increase in species richness within the forest understory. However, these types of disturbance may also produce the unwanted consequence of opening pathways for the invasion of non-native species. Once established, these non-native species may threaten native plant communities and biodiversity. …
An Investigation Of Tree Growth And Woody Vegetation Colonization On A 19 Year-Old Forestry Reclamation Site, Wesley T. Dement
An Investigation Of Tree Growth And Woody Vegetation Colonization On A 19 Year-Old Forestry Reclamation Site, Wesley T. Dement
Theses and Dissertations--Forestry and Natural Resources
Survival, growth and biomass accumulation of 19 year-old trees planted on an Appalachian surface mine site were evaluated to determine the effect of spoil grading and surface amendment treatments. Three spoil grading treatments (loose-dump, strike-off and graded control) were established to create a range of operationally feasible spoil compaction capable of impacting tree establishment and growth. Likewise, three surface amendment treatments (straw/manure mulch, hardwood bark mulch and control) were applied to determine their effects on tree development. Trees grown under low-compaction grading treatment levels (strike-off and loose-dump) consistently outperformed trees planted in a high-compaction control treatment. Loose-dump preparation resulted in …
Use Of Landsat Data To Characterize Burn Severity, Forest Structure And Invasion By Paulownia (Paulownia Tomentosa) In An Eastern Deciduous Forest, Kentucky, Suraj Upadhaya
Theses and Dissertations--Forestry and Natural Resources
Landsat imagery has been used successfully to assess burn severity and monitor post-fire forest structure in a variety of ecosystems, but to date there are few documented studies on its application in the eastern deciduous forests of the eastern United States. The occurrence of a wildfire in the Daniel Boone National Forest in2010 provided a rare opportunity for research into the use of Landsat data for assessing burn severity and its ecological effects. We used differenced normalized burn ratio (∆NBR) to quantify burn severity. The ∆NBR based burn severity classification had 70% agreement with a qualitative ground-based burn severity assessment. …
Efficacy Of Dormant Season Herbicide Application On Control Of Japanese Honeysuckle (Lonicera Japonica) For Habitat Restoration In Kentucky, Jason L. Weese
Efficacy Of Dormant Season Herbicide Application On Control Of Japanese Honeysuckle (Lonicera Japonica) For Habitat Restoration In Kentucky, Jason L. Weese
Theses and Dissertations--Forestry and Natural Resources
Kentucky’s disappearing native grassland communities provide habitat for native flora and fauna. A study was conducted to compare the efficacy of herbicides in control of the invasive Japanese honeysuckle (Lonicera japonica) applied at times when most native species are dormant. Six herbicide mixtures (glyphosate, glyphosate + imazapyr, glyphosate + imazapic, imazapyr, triclopyr + difluphenzopyr, and metsulfuron + difluphenzopyr) were applied in three seasons to assess the effect of application timing of each mixture on honeysuckle control. Herbicides were applied with a CO2 pressurized sprayer at three sites in a randomized complete block design. Pretreatment sampling indicated that …
The Impacts Of Logging With Current And Modified Best Management Practices On Watershed Characteristics In Eastern Kentucky, Chase Clark
Theses and Dissertations--Forestry and Natural Resources
In Kentucky, Best Management Practices (BMPs) were developed to protect the integrity of water resources during and after silvicultural operations, but their effectiveness is largely unknown. The study objectives were to (1) quantify the extent to which current BMPs minimized logging-related changes in stream water quality, channel morphology, and the content of woody debris and (2) quantify the extent to which modified BMPs influenced these characteristics. Six watersheds in eastern Kentucky were commercially logged in 2008-2009. In each watershed, one of three treatments was implemented (each replicated once). Treatment 1 (BMP) was based on current Kentucky BMPs. In treatments 2 …
Modeling Site Suitability For Establishing Dedicated Energy Crops In Northern Kentucky, Sandhya Nepal
Modeling Site Suitability For Establishing Dedicated Energy Crops In Northern Kentucky, Sandhya Nepal
Theses and Dissertations--Forestry and Natural Resources
Dedicated energy crops have the potential to supply a sustainable biomass feedstock to support the bioenergy industry. However, a major constraint for promoting energy crops has been the availability of land for establishing energy crops. In this study, we developed a spatially-explicit model to identify suitable and economically feasible sites for establishing energy crops based on biomass price, production costs and site-specific biomass productivity. Results from our study provided an objective evaluation of factors that influence the amount and spatial distribution of land suitable for establishing energy crops. In addition, our model had the ability to capture variation across the …
Effects Of Regeneration Opening Size And Simulated Crop Tree Release On Volume Yields And Economic Value In Oak-Dominated Stands, Russell Andrew Cunningham
Effects Of Regeneration Opening Size And Simulated Crop Tree Release On Volume Yields And Economic Value In Oak-Dominated Stands, Russell Andrew Cunningham
Theses and Dissertations--Forestry and Natural Resources
Patch clearcutting can be put to effective use for landowners with relatively small stands of timber. This project was designed to determine how clearcut opening size and mid-rotation crop tree release affects the value and volume of sawtimber at the end of rotation. In 1960 patch clearcuts were established in three different diameters, 50ft (.05ac), 150ft (.41ac), and 250ft (1.13ac). Current stand data (2011) was collected to determine trees per acre, basal area, average tree diameter, volume, and value. These data were input into a growth simulator to determine future trees per acre, basal area, average tree diameter, volume, and …
Monitoring The Influence Of Acid Deposition On Soil And Implications To Forest Health In The Daniel Boone National Forest, Tyler M. Sanderson
Monitoring The Influence Of Acid Deposition On Soil And Implications To Forest Health In The Daniel Boone National Forest, Tyler M. Sanderson
Theses and Dissertations--Forestry and Natural Resources
Combustion of fossil fuels has contributed to many environmental problems including acid deposition. The Clean Air Act (CAA) was created to reduce ecological problems by cutting emissions of sulfur and nitrogen. Reduced emissions and rainfall concentrations of acidic ions have been observed since the enactment of the CAA, but soils continue to receive some acid inputs. Soils sensitive to acid deposition have been found to have low pH, a loss of base cations and a shift in the mineral phase controlling the activity of Al3+ and/or SO42-. If inputs continue, soil may be depleted of base …
Effects Of Streamside Management Zone Timber Harvest On Salamander Communities In Robinson Forest, Thomas Maigret
Effects Of Streamside Management Zone Timber Harvest On Salamander Communities In Robinson Forest, Thomas Maigret
Theses and Dissertations--Forestry and Natural Resources
Salamanders are critical components of forest ecosystems, in terms of total biomass, as well as for their value as indicators of ecosystem stress. Considering the worldwide decline in amphibian populations, the known effects of timber harvest on salamander populations, and the importance of the forest products industry in Kentucky and elsewhere, the impacts of silvicultural operations on salamander communities cannot be overlooked. The objective was to investigate the effects of three different silvicultural treatments, each involving different streamside management zone (SMZ) characteristics, on salamander communities in ephemeral streams. Data were collected by regular checks of pitfall traps, coverboards, and transect …
Forest Harvest Equipment Movement And Sediment Delivery To Streams, Daniel Whiteside Bowker
Forest Harvest Equipment Movement And Sediment Delivery To Streams, Daniel Whiteside Bowker
Theses and Dissertations--Forestry and Natural Resources
Streamside management zones (SMZs) have become important management techniques to prevent the introduction of sediment to stream networks. This study examined the current Kentucky best management practice (BMP) guidelines for SMZs by outfitting mobile forest harvest equipment with global positioning system (GPS) receivers, enabling modeling of equipment traffic and spatial analysis of stream sediment delivery. Three SMZ configurations were implemented during commercial timber harvest, along with four different techniques of crossing ephemeral channels, in order to determine where and why sediment was introduced to the stream network. Results indicate that increasing the SMZ buffer width leads to decreased sediment delivery, …
Effectiveness Of Elevated Skid Trail Headwater Stream Crossings In The Cumberland Plateau, Christopher D. Reeves
Effectiveness Of Elevated Skid Trail Headwater Stream Crossings In The Cumberland Plateau, Christopher D. Reeves
Theses and Dissertations--Forestry and Natural Resources
One of the primary concerns associated with timber harvesting is the production of sediments from stream crossings. While research has shown that using improved haul road crossings can mitigate sediment production in perennial streams compared to the use of unimproved crossings little research has been undertaken on temporary skidder crossings of headwater streams, a situation common to a significant percentage of ground skidding operations. This experiment consisted of a controlled replicated testing of the effectiveness of four types of temporary skidder stream crossings (unimproved ford, corrugated culvert, wood panel skidder bridge, and PVC pipe bundle) relative to bedload and suspended …