Prescribed fire has proven effective in controlling vegetative competition of oak regeneration ac... more Prescribed fire has proven effective in controlling vegetative competition of oak regeneration across many sites in the southeastern US Most fire investigations have been performed in the Piedmont and Coastal Plain. Land managers lack definitive knowledge on how to use prescribed fire to improve long-term oak regeneration success in the southern Appalachians. Several short-term (less than 5 years) southern highland studies suggest that fire effects van' widely by site qualiry. I installed a shelterwood/ underburn study in 1995 on a highly acidic cove in die southern Appalachians to test the hypothesis chat prescribed fire would enable advanced oak regeneration to survive and grow to dominant status at canopy closure in the presence of aggressive tree and shrub competition. I theorized that fire would discriminate against competitors less well adapted to fire than the oaks. By 2005 the understory canopy had started to close; I found that prescribed fire did not improve the probab...
Little is known of the tree and stand dynamics of varied species of planted Paulownia left unmana... more Little is known of the tree and stand dynamics of varied species of planted Paulownia left unmanaged until harvest in the southeastern United States. We sought to remedy this lack of information needed by land managers to make informed decisions by investigating differences in survivorship, attained diameter breast height (DBH), diameter at ground level, total height, tree volume and stand-level volume yields of planted P. elongata, P. fortunei, and P. tomentosa in the cool-moist environment of the southern Appalachian Mountains. After 9 years, combined-species survivorship was only 27.3%. Low survivorship was likely related to several inclement weather events. P. fortunei was significantly smaller in DBH and total height. Three combined-species stem (bole) volume models were developed as functions of (1) DBH squared, (2) the product DBH squared and total height, and (3) the product diameter ground line squared and total height. Mean total volume production of unmanaged stands was g...
This report is one of a series that traces the flow of Oregon's 2008 timber harvest though the pr... more This report is one of a series that traces the flow of Oregon's 2008 timber harvest though the primary timber processing industry and provides a description of the structure, operations, and condition of Oregon's primary forest products industry. Detailed information is provided for the year 2008 based on a census of the industry done in 2009 and 2010. Historical wood products industry changes are discussed as well as trends in harvest, production, and sales. Because of the severe market/economic conditions that existed in 2008, 2009, and 2010 updated information on the industry and its inputs and outputs are provided through 2010.
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