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http://dx.doi.org/10.14578/jkfs.2020.109.4.504

Study on Timber Yield Regulation Method using Probability Density Function  

Park, Jung-Mook (Department of Forest Management, Kangwon National University)
Lee, Jung-Soo (Department of Forest Management, Kangwon National University)
Lee, Ho-Sang (Warm Temperate and Subtropical Forest Research Center, National Institute of Forest Science)
Park, Jin-Woo (Department of Forest Management, Kangwon National University)
Publication Information
Journal of Korean Society of Forest Science / v.109, no.4, 2020 , pp. 504-511 More about this Journal
Abstract
This study estimated planned felling volumes to set targets for management planning of nationwide country-owned forests. Estimates were made using timber harvest prediction methods that use probability density functions, including area weighting (AW), area ratio weighting (ARW), and sample area change ratio weighting (SCRW). Country-owned forest areas in 2010 and 2015 were used to estimate planned felling volumes, as shown in basic forest statistics, and calculations were made assuming that the felling areas were the changes in the forest area over the 5-year period. For the age classes of V-VI, the average felling ages for AW, ARW, and SCRW were 5.41, 5.56, and 5.37, respectively, and the felling areas were 594,462, 586,704, and 580,852 ha, respectively, with ARW reaching closest to the actual changes. The actual changes in the areas and chi-squared test results were most stable with the SCRW method. This study showed that SCRW was more adequate than AW and ARW as a method to predict timber harvests for forest management planning.
Keywords
forest management; normal forest; standard felling age; timber yield regulation;
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Times Cited By KSCI : 3  (Citation Analysis)
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