Local Merchantable Volume Table of Dalbergia cochinchinensis Pierre: A Case Study at the Tha Kum Noboru Umeda Plantation, Trat Province

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Piyapruek Wongnam
Patsi Prasomsin

Abstract

                The objective of this study was to construct a table for the local merchantable volume of Dalbergia cochinchinensis Pierre at the Tha Kum Noboru Umeda plantation, Trat province. This volume table was constructed from 60 selected trees and included all the diameter classes of trees in the plantation. Data related to diameter at breast height, merchantable height, total height, main stem length, and the number of merchantable logs were recorded. The merchantable volume of each sample tree was calculated using Huber’s formula. Multiple regression analysis was done with various model equations and an optimal equation was selected based on the best goodness of fit relationship between the merchantable volume and independent variables. The optimal equation for estimating the merchantable volume of D. cochinchinensis was as follows LOG V = -3.82151 +
0.872132 LOG D2 Hm (R2 = 0.942), which had an aggregate difference of 3.04%. The merchantable volume table of D. cochinchinensis can be constructed by using this equation to estimate the volume of standing trees, given that the diameter at breast height and merchantable height are known.

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How to Cite
Wongnam, P. ., & Prasomsin, P. . (2020). Local Merchantable Volume Table of Dalbergia cochinchinensis Pierre: A Case Study at the Tha Kum Noboru Umeda Plantation, Trat Province. Thai Journal of Forestry, 39(2), 164–175. Retrieved from https://li01.tci-thaijo.org/index.php/tjf/article/view/249041
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Original Articles

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