Analysis of tree measurements reveals the planimeter method offers lower volume estimates, suggesting its use for Delta hardwood species.
The authors analyzed the stem measurements of 96 second-growth Mississippi Delta trees of 12 common species to ascertain the suitability of the planimeter method for determining volume. The Smalian formula was used to determine the basic volume. The planimeter method was found to give consistently lower volumes by 1.22 per cent, but it was concluded that the planimeter method approached the effective volume more closely. The authors recommend the planimeter method for volume table construction for the Delta species. Mr. Reineke, the originator, discusses the application of his planimeter method by the authors in comments following the article.
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Winters et al. (1932) studied this question.
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