주요 수종별 재적의 상업적 이용율 추정

This study was conducted to derive merchantable volume ratio for 5 major species such as Pinus Densiflora (Central Region). The data used for this study was from at least more than 1,300 trees of research data throughout the country. the study applied two estimation equations, which were the estimat...

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Published in韓國林學會誌 Vol. 105; no. 3; pp. 330 - 335
Main Authors 손영모, 강진택, 원현규, 전주현, Son, Yeong Mo, Kang, Jin Taek, Won, Hyun Kyu, Jeon, Ju Hyun
Format Journal Article
LanguageKorean
Published 2016
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Abstract This study was conducted to derive merchantable volume ratio for 5 major species such as Pinus Densiflora (Central Region). The data used for this study was from at least more than 1,300 trees of research data throughout the country. the study applied two estimation equations, which were the estimation equation for wood volume ratio representing total wood volume to total tree stem volume and the estimation equation for merchantability representing ratio of merchantable volume to total wood volume. The merchantable volume ratio was derived by multiplying those two estimation equations. In order to gain wood volume ratio(W) from DBH, $W=\frac{a_1}{1+a_2/D}+\frac{b_1}{1+b_2/D}$ model was used. Fitness index of it was more than 99% by species, and other test statistics also indicated the suitability of this equation enough. Merchantability (M) for wood volume applied $M=e^{a_1\(\frac{d}{D}\)^{a_2}}-(b_0+b_1D+b_2D^2+b_3D^3)$ model and fitness index was more than 96% by species. Merchantable volume ratio was assessed using those two estimation equations by each 5 species, and constructed a merchantable volume ratio table. In result, merchuntable volume ratio was little difference between stand types, but there was slightly different with the existing standard such as conifers of 85% and non-conifers of 70%. 본 연구는 중부지방소나무 등 주요 5개 수종에 대하여 상업적으로 이용가능한 재적율인 조재율을 구하기 위하여 수행되었다. 본 연구에 이용한 자료는 최소 1,300여본 이상의 전국적인 조사자료를 이용하였으며, 적용한 추정식은 임목재적 중 목질부 재적을 나타내는 목질부 재적율 추정식과 목질부 재적에 대한 이용재적을 나타내는 원목이용율 추정식이었으며, 이 두가지 추정식의 곱으로 조재율을 도출하였다. 흉고직경에 의한 목질부 재적율(W)은 $W=\frac{a_1}{1+a_2/D}+\frac{b_1}{1+b_2/D}$의 모형을 이용하였으며, 이 식의 적합도는 수종별로 99% 이상이었고 기타 검정통계량도 식의 적합성을 충분히 설명하고 있었다. 목질부 재적에 대한 원목이용율(M)은 $M=e^{a_1\(\frac{d}{D}\)^{a_2}}-(b_0+b_1D+b_2D^2+b_3D^3)$ 모형을 적용시켜 적합도는 수종별로 96% 이상이었다. 이 두가지 추정식을 이용하여 5개 수종별로 상업적 재적이용율인 조재율을 산정하고 조재율표를 작성하였다. 분석결과, 조재율은 침엽수와 활엽수 임상별로는 거의 차이가 없는 것으로 나타났으나, 기존 침엽수, 활엽수 조재율과의 차이는 있는 것으로 나타났다.
AbstractList This study was conducted to derive merchantable volume ratio for 5 major species such as Pinus Densiflora (Central Region). The data used for this study was from at least more than 1,300 trees of research data throughout the country. the study applied two estimation equations, which were the estimation equation for wood volume ratio representing total wood volume to total tree stem volume and the estimation equation for merchantability representing ratio of merchantable volume to total wood volume. The merchantable volume ratio was derived by multiplying those two estimation equations. In order to gain wood volume ratio(W) from DBH, $W=\frac{a_1}{1+a_2/D}+\frac{b_1}{1+b_2/D}$ model was used. Fitness index of it was more than 99% by species, and other test statistics also indicated the suitability of this equation enough. Merchantability (M) for wood volume applied $M=e^{a_1\(\frac{d}{D}\)^{a_2}}-(b_0+b_1D+b_2D^2+b_3D^3)$ model and fitness index was more than 96% by species. Merchantable volume ratio was assessed using those two estimation equations by each 5 species, and constructed a merchantable volume ratio table. In result, merchuntable volume ratio was little difference between stand types, but there was slightly different with the existing standard such as conifers of 85% and non-conifers of 70%. 본 연구는 중부지방소나무 등 주요 5개 수종에 대하여 상업적으로 이용가능한 재적율인 조재율을 구하기 위하여 수행되었다. 본 연구에 이용한 자료는 최소 1,300여본 이상의 전국적인 조사자료를 이용하였으며, 적용한 추정식은 임목재적 중 목질부 재적을 나타내는 목질부 재적율 추정식과 목질부 재적에 대한 이용재적을 나타내는 원목이용율 추정식이었으며, 이 두가지 추정식의 곱으로 조재율을 도출하였다. 흉고직경에 의한 목질부 재적율(W)은 $W=\frac{a_1}{1+a_2/D}+\frac{b_1}{1+b_2/D}$의 모형을 이용하였으며, 이 식의 적합도는 수종별로 99% 이상이었고 기타 검정통계량도 식의 적합성을 충분히 설명하고 있었다. 목질부 재적에 대한 원목이용율(M)은 $M=e^{a_1\(\frac{d}{D}\)^{a_2}}-(b_0+b_1D+b_2D^2+b_3D^3)$ 모형을 적용시켜 적합도는 수종별로 96% 이상이었다. 이 두가지 추정식을 이용하여 5개 수종별로 상업적 재적이용율인 조재율을 산정하고 조재율표를 작성하였다. 분석결과, 조재율은 침엽수와 활엽수 임상별로는 거의 차이가 없는 것으로 나타났으나, 기존 침엽수, 활엽수 조재율과의 차이는 있는 것으로 나타났다.
Author Won, Hyun Kyu
강진택
Jeon, Ju Hyun
전주현
Son, Yeong Mo
손영모
원현규
Kang, Jin Taek
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Keywords stem volume
wood volume
merchantable volume ratio
major species
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