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http://dx.doi.org/10.14578/jkfs.2019.108.3.357

Estimating Stem Volume Table of Quercus Acutissima in South Korea using Variable Exponent Equation  

Ko, Chi-Ung (Division of Forest Industry Research, National Institute of Forest Science)
Kim, Dong-Geun (Department of Ecology and Environment System, Kyungpook National University)
Kang, Jin-Taek (Division of Forest Industry Research, National Institute of Forest Science)
Publication Information
Journal of Korean Society of Forest Science / v.108, no.3, 2019 , pp. 357-363 More about this Journal
Abstract
This study was conducted to develop a stem volume table for Quercus acutissima in Korea by using Kozak's stem taper equation. In total, 2700 tree samples were collected around the country, and growth performance was investigated through compiling data on diameters by stem height and stem analysis. In order to test the stem taper equation's fitness, the fitness index (FI), bias, and mean absolute deviation (MAD) were analyzed. The fitness of the equation was estimated at 97%, bias as 0.017, and MAD turned out to be 1.118, respectively. Furthermore, there was a statistically significant volume difference between the current volume table and the new volume table (p = 0.0008, <0.005). The result indicates that using the new volume table that reflects the actual forest will reduce the loss when assessing wood resources and will improve the accuracy of forest statistics for national and local governments. A stem volume table, the main result of this research, which is utilized in the estimated stem taper equation, will provide growth information for Quercus acutissima, one of the main broadleaf species in Korea, and will function as a management indicator for rational forest management.
Keywords
Quercus acutissima; stem voulme table; stem taper model; Kozak's stem taper equation; forest management; stem analysis;
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Times Cited By KSCI : 2  (Citation Analysis)
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