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    Author(s): W.A. Bechtold; S.J. Zarnoch; W.G. Burkman
    Date: 1998
    Source: Southern Journal of Applied Forestry. 22(4): 216-221.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (195 KB)

    Description

    Equations used by USDA Forest Service Forest Inventory and Analysis projects to predict individual tree heights on the basis of species and d.b.h. 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 percent of the time, while ocular estimates achieved the desired accuracy 75 percent of the time.

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    Citation

    Bechtold, W.A.; Zarnoch, S.J.; Burkman, W.G. 1998. Comparisons of modeled height predictions to ocular height estimates. Southern Journal of Applied Forestry. 22(4): 216-221.

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