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Reliability of Tanoak Volume Equations when applied to different areas

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Tree volume equations for tanoak (Lithocarpus densiflorus) were developed for seven stands throughout its natural range and compared by a volume prediction and a parameter difference method. The objective was to test if volume estimates from a species growing in a local, relatively uniform habitat could be applied more widely. Results indicated that they could not. Diameter slope coefficients and intercepts differed at the 5% probability level. Tree height slope coefficients did not differ, but when all slope coefficients (dbh and height) were combined, a significant difference was present. Overall, volume equations from different populations were significantly different, and the general rule of matching standard volume tables to specific stands is reinforced. West. J. Appl. For. 10(2):72-78.

Document Type: Journal Article

Affiliations: Statistics Department, California Polytechnic State University, San Luis Obispo, California 93407

Publication date: 1995-04-01

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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 Western Journal of Applied Forestry covers the western United States, including Alaska, and western Canada; WJAF will also consider manuscripts reporting research in northern Mexico that has potential application in the southwestern United States.
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