Comparisons of Modeled Height Predictions to Ocular Height Estimates
Abstract:Equations used by USDA Forest Service Forest Inventory and Analysis projects to predict individual tree heights on the basis of species and dbh were improved by the addition of mean overstory height. However, ocular estimates of total height by field crews were more accurate than the statistically improved models, especially for hardwood species. Height predictions from the improved equations attained the desired measurement quality objective only 57% of the time, while ocular estimates achieved the desired accuracy 75% of the time. South. J. Appl. For. 22(4):216-221.
Document Type: Journal Article
Affiliations: USDA Forest Service, Southern Research Station, Asheville, NC.
Publication date: November 1, 1998
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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 Southern Journal of Applied Forestry covers an area from Virginia and Kentucky south to as far west as Oklahoma and east Texas.
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