2005•Unpublished venueRequires access
Measuring Tree Seedlings and Associated Understory Vegetation in Pennsylvania's Forests
William H. McWilliams, Todd W. Bowersox, Patrick H. Brose, Daniel A. Devlin, James C. Finley, Kurt W. Gottschalk, Steve Horsley, Susan L. King, Brian M. LaPoint, Tonya W. Lister, Larry H. McCormick, Gary W. Miller, Charles Thomas Scott, Harry Steele, Kim C. Steiner, Susan Laurane Stout, James A. Westfall, Robert L. White
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Abstract
The Northeastern Research Station's Forest Inventory and Analysis (NE-FIA) unit is conducting the Pennsylvania Regeneration Study (PRS) to evaluate composition and abundance of tree seedlings and associated vegetation. Sampling methods for the PRS were tested and developed in a pilot study to determine the appropriate number of 2-m microplots needed to capture variability in seedling abundance. The findings resulted in a decision to use one 2-m fixed-radius microplot per 7.3-m fixed-radius subplot of the NE-FIA design. Preliminary results indicate that one-half to two-thirds of the region's forests would require remedial treatment if preferred species are the management objective.