Predicting the amount of usable lumber contained in American beech (Fagus grandifolia) logs infected with beech bark disease based on exterior defects.
Wed, 12/02/2015 - 10:09
Abstract: Beech Bark disease has had many effects on the hardwood forests of the northeastern United States. Many studies have been done in regards to the changes caused by the disease affecting the ecology, species composition of the forest, abundance of American beech (Fagus grandifolia), and physiology of individual trees. However, American beech is a dense, strong species that machines and bends well, and has uses in the form of flooring, handles, and some furniture. This study examines how the severity of beech bark disease affects the amount of usable lumber that can be recovered from American beech sawlogs. To do this, American beech sawlogs with varying degrees of beech bark disease infection were harvested, bucked and scaled. These logs were rated according to their degree of beech bark disease infection based on exterior defects such as raised or sunken cankers, fissures and evidence of scale insect. These logs were then sawn into lumber form and rescaled to find a percentage of usable lumber that resulted from the gross scale taken prior to sawing. There was not a definitive relationship between degree of infection, and lumber yield. This study will be useful to the stakeholders of the lumber industry to aid in predicting whether or not a log infected with beech bark disease can be economically used for lumber.
Literary Rights: Off
File Attachments: Beech Bark Disease: predicting lumber yield
Downtown Saranac Lake Urban Forest Management Plan
Thu, 05/07/2015 - 16:47
Abstract: Trees and green spaces are important resources to any community. They are public spaces which provide havens of relaxation, play, and mental and physical stimulation. Trees and green spaces have been proven to have a positive impact on the mental and physical wellbeing of area residents. However, the care of these trees and green spaces is often overlooked or not planned for, leading to human/nature conflicts at a fine scale (local level). This is where arborists enter; arborists are individuals trained in the art of caring for trees, and are often involved in every stage of a tree’s life cycle, from planting to removal. But arborists are also teachers, acting as the intermediary between urban trees and the public and providing education to the people. The village of Saranac Lake, New York, is no different. The results of the data collected on Saranac Lake’s downtown street trees and parks were analyzed and compiled into a comprehensive urban tree management plan. A total of 236 trees and shrubs were inventoried and assessed for their health, overall condition, and pruning needs. Also included in the urban tree management plan are observations on the current state of the urban forest, recommendations for the mitigation and correction of any observable problems, and prevention and treatment courses of action for any future insect pests.
Literary Rights: On
Major: Forestry, Parks, Recreation and Facilities Management
File Attachments: Downtown Saranac lake Urban Forest Management Plan.pdf
Implementing an Educational Demonstration Forest with Working Elements of Silviculture, Wildlife, Recreation, and Water in Harrietstown, Adirondack, NY
Tue, 05/05/2015 - 11:15
Abstract: The project being conducted will provide rationale about the importance of working forestry, all while maintaining positive public sentiment within the forest products industry. The project will focus on public education and maintain water quality, wildlife habitat, and recreational opportunities. The public will see developed interpretive areas with signage at points of interest. The designated area is located near the Adirondack Regional Airport, Hunt Road and NYS Route 30, and is comprised of 226 acres. There are varying stands in the tract that range from pure softwood, hardwood and mixed wood stands. After the designated area was selected, a timber cruise was conducted along with note taking and visual analysis of how the area could entice public use and education. Once all the data was gathered, the conclusion drawn was throughout all different forests types in the tract, there were multiple educational opportunities pertaining to water quality and wildlife habitat through use of sustainable forestry methods. The significance of this project is to facilitate public education on how forestry can be sustainable and beneficial. This will be shown through workshops, kiosks, interpretive walks and a menagerie of other proposed ideas.
Literary Rights: On
File Attachments: Capstone_LIB_Upload.docx
Investigating Amount of Sample Points Necessary for Accurate Topographic Representation of the Ground Truth
Wed, 04/29/2015 - 18:18
Abstract: Topographic or elevation data has many uses and applications especially when it is converted into a Digital Elevation Model (DEM). Such uses are erosion modeling, surface hydrology, watershed modelling geomorphology, land-sliding, agriculture and ecosystem modeling to list a few examples. This project intends to determine the amount of topographic data points that need to be collected in order to create an accurate model of the ground topography. To accomplish the objective, a topographic survey was conducted on a grid pattern, with a spacing of 7.5 feet between points regularly spaced over one acre. After the data were collected, varying percentages of the total amount of points collected were removed and the resulting digital elevation model (DEM) was compared to the ground truth DEM. When comparing accuracy of interpolated elevation across the entire DEM with a RMSE (root mean square error) it was found that using a subset of 25-30% of the entire data set were needed to create a model that did not significantly differ from the Ground Truth. The change in volume of the elevation surface compared to the Ground Truth results in a linear relationship, as more points are added the closed the change in volume is to zero. The P value derived from the T-test of the mean elevations of the trial DEM’s and the Ground truth, reflect the results from the change in volume, as more points are added the closer to the truth the DEM becomes.
Literary Rights: On
File Attachments: Final_Report_RGM.docx
Changes in aquatic communities resulting from interactions between climate change and invasive aquatic plants in the Adirondacks.
Thu, 02/09/2012 - 11:26
Abstract: Global climate change can act synergistically with invasive species leading to shifts in ecosystem structure and function. We assessed how a rise in water temperature influenced the potential competitive advantage of an invasive aquatic plant, Eurasian watermilfoil, (Myriophyllum spicatum) over a co-occurring native species northern watermilfoil (M. sibiricum). We also examined the interrelationship between water temperature, watermilfoil, and the aquatic ecosystem including periphyton growth and zooplankton abundance. The study was conducted using replicated mesocosms (3785-liter), with water heaters used to provide a range of temperatures. We found that increasing water temperature promoted the likely competitive advantage of the invasive species, M. spicatum: Survival of M. sibiricum plants was lower than that of M. spicatum across all temperature treatments with a mean survival rate of 24% and 96% respectively. M. sibiricum also showed significantly slower rates of plant growth (mean growth of 3.3 cm compared to 7.6 cm for M. spicatum) and reduced vigor compared to M. spicatum, with an average of less than half the number of growing meristems. Zooplankton densities averaged over 20 times higher in mesocosms with M. sibiricum compared to those with the invasive M. spicatum. Periphyton biomass was best explained by water temperature with an increase in growth in warmer water. Our study confirms that in the face of global climate change, the invasive M. spicatum will continue to exert dominance over its native counterpart. Our results also provide compelling evidence that the combined effects of climate change and invasive aquatic plants can dramatically alter aquatic ecosystems.
Literary Rights: Off
Major: Environmental Sciences, Fisheries and Wildlife Science, Forestry, Natural Resources Management and Policy
File Attachments: Climate change and milfoil draft FINAL.doc