A tree-concentric procedure to adjust for edge effect in horizontal point and fixed-area circular plot sampling is reviewed. This procedure yields unbiased estimates and is relatively easy to apply in the field. The procedure is developed for rectangular forest areas and circular plots, but can be modified to handle other shaped forest areas or plots. An example is discussed in detail, and tables are included to facilitate use of the procedure. Guidelines are provided as to when edge effect bias should be eliminated. North. J. Appl. For. 4:213-216, December 1987.
Document Type: Journal Article
School of Natural Resources, The University of Michigan, Ann Arbor, Michigan 48109-1115
Publication date: December 1, 1987
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Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Northern Journal of Applied Forestry covers northeastern, midwestern, and boreal forests in the United States and Canada.