Site Index Comparisons for Several Forest Species in the Southern Appalachians1
- Warren T. Doolittle2
This paper gives methods and results of a study of relationships of site indices of 10 tree species common in the Southern Appalachians. These species are: scarlet oak, black oak, northern red oak, chestnut oak, white oak, white pine, shortleaf pine, pitch pine, Virginia pine, and yellow-poplar. Site indices of the 10 species were correlated by regression methods so that when the site index of 1 species is known for a given piece of land, it is possible to determine, by use of equations or a chart, the site index for 1 or all of the other 9 species. Results of a special field test showed that the standard error of estimate for predicting site index of scarlet oak from other species was ±5.36 feet by using equations and ±5.28 feet by using the chart. White pine had the highest site index on all lands or sites except on the best, where yellow-poplar was superior. Of all species, the chart shows that yellow-poplar is the most responsive to site change; it has the highest site index on the best sites and the lowest site index on the poorest sites.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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