Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
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Biomass Estimation of Phyllostachys pubescens Stands in KFRI, Southern Forest Research Center

맹종죽 시험림의 현존량 추정에 관한 연구

  • Lee, Kwang Soo (Southern Forest Research Center, Korea Forest Research Institute) ;
  • Jung, Su Young (The Research Forests, Gyeongsang National University) ;
  • Son, Yeong Mo (Division of Forest Management, Korea Forest Research Institute) ;
  • Lee, Kyeong Hak (Division of Forest Management, Korea Forest Research Institute) ;
  • Bae, Eun Ji (Southern Forest Research Center, Korea Forest Research Institute) ;
  • Yun, Seok Lak (Institute of Agriculture and Life Science, Gyeongsang National University)
  • 이광수 (국립산림과학원 남부산림연구소) ;
  • 정수영 (경상대학교 학술림) ;
  • 손영모 (국립산림과학원 탄소경영연구과) ;
  • 이경학 (국립산림과학원 탄소경영연구과) ;
  • 배은지 (국립산림과학원 남부산림연구소) ;
  • 윤석락 (경상대학교 농업생명과학연구원)
  • Published : 2012.03.31
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Abstract

For biomass estimation of Phyllostachys pubescens stands by optimal survey method we established 9 bamboo sample plots in the research forests of KFRI (Korea Forest Research Institute). The dry weight of culm segment determined by relative heights of total bamboo height show us two groups of 1st to 5th culm segment (up to 0~55% culm of tree height from the bottom area) and 6th to 8th culm segment (55~100%) by the results of cluster analysis for dry weight ratio. This results show that upper and lower part of 55~70% reference height from the bottom area against total culm height can be used in obtaining 1 kg of a sample bamboo, respectively, rather than 2.0 m stem segments of other forest tree species. In above-ground biomass estimation by $W=aD+bD^2$ having the highest coefficient of determination in this study, above ground stand biomass was 57.77 ton/ha (culm 40.47 ton/ha, branch 9.29 ton/ha, and leaf 8.01 ton/ha) of which 70% was contributed by culm component followed by branch (16%) and leaf (14%). Below-ground biomass was 53.35 ton/ha in total.

본 연구는 맹종죽 임분의 현존량을 추정하기 위하여 적절한 줄기 절단부위를 파악하고, 죽령에 따른 지상부 및 지하부의 각 기관별 현존량을 비교분석하였다. 5개 죽령급 별 총 9개의 조사구(각 0.04 ha)에서 표준죽에 대한 상대수고에 의한 결정간별 건중비를 군집분석한 0~55% 구간)과 제 6~8 결정간(수고의 55~100% 구간)으로 두 개의 큰 집단으로 구분되었다. 일반적인 임목에서 매 2m 단위의 결정간을 각각 측정하는 조사 방법에 비하여 대나무의 경우 수고의 55~70% 구간을 기준으로 상단부와 하단부의 2개 결정간에 대한 각 1 kg 시료의 현존량을 조사하는 것이 더욱 효율적이라고 분석되었다. 결정계수가 가장 높은 맹종죽의 생체량 추정식은 $W=aD+bD^2$ 이었으며, 각 수령별 지상부 추정치를 합산한 총량과 수령별 구분 없이 추정한 총량 간에 유의적인 차이가 없었다. 맹종죽의 지상부 바이오메스는 총 57.77 ton/ha로서 줄기 40.47 ton/ha, 가지 9.29 ton/ha, 잎 8.01 ton/ha으로서 줄기부위가 가장 높게 나타났다. 지하부의 생체량은 53.35 ton/ha으로 나타났다.

Keywords

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