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http://dx.doi.org/10.14578/jkfs.2022.111.2.311

Development of Diameter Distribution Change and Site Index in a Stand of Robinia pseudoacacia, a Major Honey Plant  

Kim, Sora (Forest Research Bureau, Korea Forest Conservation Association)
Song, Jungeun (Forest Research Bureau, Korea Forest Conservation Association)
Park, Chunhee (Forest Research Bureau, Korea Forest Conservation Association)
Min, Suhui (Forest Research Bureau, Korea Forest Conservation Association)
Hong, Sunghee (Forest Research Bureau, Korea Forest Conservation Association)
Yun, Junhyuk (Forest Biomaterial Research Center, National Institute of Forest Science)
Son, Yeongmo (Forest Research Bureau, Korea Forest Conservation Association)
Publication Information
Journal of Korean Society of Forest Science / v.111, no.2, 2022 , pp. 311-318 More about this Journal
Abstract
We conducted this study to derive the site index, which is a criterion for the planting of Robinia pseudoacacia, a honey plant, and to investigate the diameter distribution change by derived site index. We applied the Chapman-Richards equation model to estimate the site index of the Robinia pseudoacacia stand. The site index was distributed within the range of 16-22 when the base age was 30 years. The fitness index of the site index estimation model was low, but we judged that there was no problem in the application because the residual distribution of the equation had not shifted to one side. We used the Weibull diameter distribution function to determine the diameter distribution of the Robinia pseudoacacia stand by site index. We used the mean diameter and the dominant tree height as independent variables to present the diameter distribution, and our analysis procedure was to estimate and recover the parameters of the Weibull diameter distribution function. We used the mean diameter and the dominant tree height of the Robinia pseudoacacia stand to show distribution by diameter class, and the fitness index for dbh distribution estimation was about 80.5%. As a result of schematizing the diameter distribution by site indices as a 30-year-old, we found that the higher the site index, the more the curve of the diameter distribution moved to the right. This suggests that if the plantation were to be established in a high site index stand, considering the suitable trees on the site, the growth of Robinia pseudoacacia woul d become active, and not onl y the production of wood but al so the production of honey would increase. We therefore anticipate that the site index classification table and curve of this Robinia pseudoacacia stand will become the standard for decision making in the plantation and management of this tree.
Keywords
diameter distribution; honey plants; Robinia pseudoacacia; site index; suitable tree on the site;
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Times Cited By KSCI : 1  (Citation Analysis)
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