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Type :article
Subject :Q Science (General)
Main Author :Siti Hajar Mohd Mushar
Additional Authors :Sharifah Sakinah Syed Ahmad
Nur Hajar Zamah Shari
Fauziah Kasmin
Title :A comparative study of log volume estimation by using statistical method
Place of Production :Tanjong Malim
Publisher :Fakulti Sains dan Matematik
Year of Publication :2020
Corporate Name :Universiti Pendidikan Sultan Idris
PDF Full Text :Login required to access this item.

Abstract : Universiti Pendidikan Sultan Idris
Log volume estimation is a measurement of the amount of merchantable volume and precise estimation of log volume plays an important role in sustainable forest management. There are several log volume formula which commonly used in estimating the log volume, however, there are significant differences between each formula. Therefore, this paper evaluates the performance of three different log volume formula which are Smalian’s, Huber’s and Bruce’s formula against several log sectional length. The performance of each log volume formula will be evaluated in terms of the bias, precision and accuracy of the estimation. The result shows that Huber’s formula performs the best for log sectional length of 2 m, 4 m, 6 m and 8 m log sectional length. The log sectional length and prediction accuracy is inversely related whereby the shorter the log sectional length, the better the prediction accuracy is.


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