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.
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File Attachments: Beech Bark Disease: predicting lumber yield
Vermont Maple Forest Products LLC. Forest Management and Business Plan
Wed, 12/02/2015 - 17:52
Abstract: Maple syrup production is an extremely important aspect of the American economy in the northeast, generating around 132 million dollars in revenue annually across its U.S production range (United States Department of Agriculture, 2014). At the current rate of production U.S producers are presently only tapping 0.4% of the maples which may be available (Farrell & Chabot, 2012). Vermont has the greatest number of its trees tapped, with 2.94% of available trees currently in production. The low percentage of tappable maple trees in production has been seen as a short coming in the industry. However, this does create the possibility for entry into the industry. Vermont Maple Forest Products LLC is in current maple production and desires to produce on an industrial scale. Simon Boulet and Claude Deschenes (2005) found that the highest degrees of profit are generated when a producer is considered a medium(5,000-19,000 taps)-large (>19,000 taps) supplier. At this point costs per tap are reduced and sap yeilds increase. Vermont Maple Forest Products currently has the land available for potentially over 28,000 taps. To achieve this goal a business plan and forest management plan was developed and will be implemented across the tract with the goal of maple syrup production.
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