한국산림과학회지 (Journal of Korean Society of Forest Science)

  • 제102권4호
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  • Pages.543-549
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  • 2013
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  • 2586-6613(pISSN)
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  • 2586-6621(eISSN)
한국산림과학회 (Korean Society of Forest Science)
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곰솔임분의 임분연령별 상대생장식 및 현존량 확장계수

Allometric Equations and Biomass Expansion Factors in an Age-sequence of Black Pine (Pinus thunbergii) Stands

  • 김춘식 (경남과학기술대학교 산림자원학과) ;
  • 이광수 (국립산림과학원 남부산림자원연구소) ;
  • 손영모 (국립산림과학원 기후변화연구센터) ;
  • 조현서 (경남과학기술대학교 산림자원학과)
  • Kim, Choonsig (Department of Forest Resources, Gyeongnam National University of Science and Technology) ;
  • Lee, Kwang-Soo (Southern Forest Resource Research Center, Korea Forest Research Institute) ;
  • Son, Young-Mo (Center of Forest and Climate Change, Korea Forest Research Institute) ;
  • Cho, Hyun-Seo (Department of Forest Resources, Gyeongnam National University of Science and Technology)
  • 투고 : 2013.07.17
  • 심사 : 2013.10.21
  • 발행 : 2013.12.31
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초록

경상남도 진주지역의 유사한 입지환경에서 생육한 평균 임령 35년생, 51년생, 62년생 곰솔임분을 대상으로 각 연령별 8본의 표본목을 벌채하여 바이오매스 추정을 위한 상대생장식과 줄기밀도 및 현존량 확장계수를 개발하였다. 흉고직경을 독립변수로 하고 각 부위별 건중량을 종속변수로 하는 상대생장식은 62년생 임분의 잎 바이오매스를 제외하고 유의성이 인정되었으며(P<0.05), 결정계수($R^2$)의 값도 0.55-0.98 정도로 나타났다. 또한 각 임분 연령에 대한 상대생장식(Age-specific allometric equations)의 회귀계수(slope)에 유의적인 차가 없어(P>0.05), 35년 이상 곰솔임분의 경우 임분 연령에 관계없이 일괄 상대생장식(Generalized allometric equations)을 이용하여 바이오매스 추정이 가능한 것으로 나타났다. 줄기밀도와 현존량 확장계수도 임분 연령 간 유의적인 차이가 없었으며 줄기밀도는 $0.45-0.51gcm^{-3}$, 현존량 확장계수는 1.32-1.38 정도의 범위에 분포하였다. 본 연구결과에 따르면 35년 이상 성숙한 곰솔임분의 바이오매스 추정을 위한 상대생장식, 줄기밀도, 현존량 확장계수는 임분 연령의 영향이 크지 않는 것으로 나타났다.

This study was conducted to evaluate age-specific and generalized allometric equations and biomass expansion factors (BEFs) for each tree component across three age-sequence stands (35-year-old, 51-year-old, 62-year-old) of black pine (Pinus thunbergii Parl.) in Jinju, located in the western part of Gyeongnam province, Korea. Biomass in each tree component, i.e. foliage, branch, and stem, was quantified by destructive tree harvesting. Allometric regression equations were significant (P<0.05) with diameter at breast height (DBH) or combination of DBH and height ($DBH^2H$) accounting for 55-98% of the variation (as indicated by coefficients of determination, $R^2$) in aboveground biomass except for foliage biomass of the 62-year-old stand. Generalized allometric equations can be used to estimate the biomass of black pine stands because the slopes of age-specific equations over 35-year-old stands were not significantly different by the age-sequence. The stem density and biomass expansion factor (BEFs) were not significantly different (P>0.05) from different stand ages and ranged from 0.45 to $0.51gcm^{-3}$, and from 1.32 to 1.38, respectively. The results indicate that allometric equations, stem density and aboveground BEFs in the matured black pine over 35-year-old are little influenced by different stand ages.

키워드

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피인용 문헌

  1. Development of Allometric Equations for V Age-class Pinus koraiensis in Mt. Taehwa Plantation, Gyeonggi-do vol.16, pp.1, 2014, https://doi.org/10.5532/KJAFM.2014.16.1.29
  2. Biomass Expansion Factors and Allometric Equations in Age Class IV of Pinus thunbergii Coastal Disaster Prevention Forest in Seocheon, Chungnam vol.14, pp.6, 2014, https://doi.org/10.9798/KOSHAM.2014.14.6.413
  3. Biomass and Nutrient Stocks of Tree Components by Stand Density in a Quercus glauca Plantation vol.105, pp.3, 2016, https://doi.org/10.14578/jkfs.2016.105.3.294
  4. Allometric Equations and Biomass Expansion Factors by Stand Density in Cryptomeria japonica Plantations vol.103, pp.2, 2014, https://doi.org/10.14578/jkfs.2014.103.2.175
  5. Estimation of Forest Carbon Stocks for National Greenhouse Gas Inventory Reporting in South Korea vol.9, pp.10, 2018, https://doi.org/10.3390/f9100625
  6. 소나무재선충병 피해지에 식재된 편백의 낙엽·낙지에 의한 탄소 및 질소 유입량 vol.110, pp.1, 2013, https://doi.org/10.14578/jkfs.2021.110.1.43