학술논문
Development of Diameter Growth Models by Thinning Intensity of Planted Quercus glauca Thunb. Stands
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- 영문명
- 발행기관
- 인간식물환경학회
- 저자명
- Su Young Jung Kwang Soo Lee Hyun Soo Kim
- 간행물 정보
- 『인간식물환경학회지(JPPE)』제24권 제6호, 629~638쪽, 전체 10쪽
- 주제분류
- 자연과학 > 자연과학일반
- 파일형태
- 발행일자
- 2021.12.31
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국문 초록
영문 초록
Background and objective: This study was conducted to develop diameter growth models for thinned Quercus glauca Thunb. (QGT) stands to inform production goals for treatment and provide the information necessary for the systematic management of this stands.
Methods: This study was conducted on QGT stands, of which initial thinning was completed in 2013 to develop a treatment system. To analyze the tree growth and trait response for each thinning treatment, forestry surveys were conducted in 2014 and 2021, and a one-way analysis of variance (ANOVA) was executed. In addition, non-linear least squares regression of the PROC NLIN procedure was used to develop an optimal diameter growth model.
Results: Based on growth and trait analyses, the height and height-to-diameter (H/D) ratio were not different according to treatment plot (p > .05). For the diameter of basal height (DBH), the heavy thinning (HT) treatment plot was significantly larger than the control plot (p < .05). As a result of the development of diameter growth models by treatment plot, the mean squared error (MSE) of the Gompertz polymorphic equation (control: 2.2381, light thinning: 0.8478, and heavy thinning: 0.8679) was the lowest in all treatment plots, and the Shapiro-Wilk statistic was found to follow a normal distribution (p > .95), so it was selected as an equation fit for the diameter growth model.
Conclusion: The findings of this study provide basic data for the systematic management of Quercus glauca Thunb. stands. It is necessary to construct permanent sample plots (PSP) that consider stand status, location conditions, and climatic environments.
목차
Introduction
Materials and Methods
Results and Discussion
Conclusion
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