Journal of agriculture & life science (농업생명과학연구)

Institute of Agriculture & Life Science, Gyeongsang National University (경상대학교 농업생명과학연구원)
권호 표지

Biomass and Net Primary Production of Pinus densiflora Stands in Gochang regions

고창지역 소나무림의 바이오매스 및 순생산량에 관한 연구

  • Seo, Yeon-Ok (Dept. of Forest Resources, Kongju National University) ;
  • Lee, Young-Jin (Dept. of Forest Resources, Kongju National University)
  • 서연옥 (공주대학교 산림자원학과) ;
  • 이영진 (공주대학교 산림자원학과)
  • Received : 2010.09.02
  • Accepted : 2010.10.19
  • Published : 2010.10.31
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Abstract

This study was conducted to examine the biomass and net primary production, stem density and biomass expansion factors of Pinus densiflora in Gochang regions. The mean age of Pinus densiflora in both stands was 10 and 48 years. The dry weights (kg/tree) and aboveground biomass (Mg/ha) were 8.59 and 17.55 for 10 years young stand, 166.66 and 122.05 for 48 years old stand. The total biomass (Mg/ha) including the above and belowground were 21.48 and 154.16 in both age stands. The proportion of stem biomass, stem bark biomass and root biomass increased from the young stand to the old stand while on the leaf biomass and branch biomass, tend to decreased. The net primary production of aboveground biomass (Mg/ha) and belowground biomass were 6.30~6.95 for the young stand and 11.61~13.19 for old stand. The stem density ($g/cm^3$) was 0.338 for young stand while on the other hand, 0.448 for old stand was observed. The above and total biomass expansion factors were 2.304~2.508 and 1.318~1.644 in each age stands, respectively.

본 연구의 목적은 전라북도 고창군 일대의 소나무림을 대상으로 바이오매스 추정식을 개발하고 이를 바탕으로 바이오매스 및 순생산량, 줄기밀도와 바이오매스 확장계수를 분석하고자 하였다. 유령임분과 성숙임분의 경우 평균 임령이 각각 10년과 48년으로 나타났으며 임목 전체 건중량은 8.59 kg, 166.66 kg으로 나타났고 임분밀도를 고려한 단위면적당 지상부 건중량은 17.55 Mg/ha, 122.05 Mg/ha으로 나타났다. 지하부를 포함한 임목전체 건중량은 21.48 Mg/ha, 154.16 Mg/ha으로 나타났다. 부위별 바이오매스 구성비는 유령임분에서 성숙임분으로 갈수록 줄기목질부, 줄기 수피, 뿌리는 증가하는 경향을 보이는 반면, 잎, 가지 구성비는 감소하는 경향으로 나타났다. 지상부 순생산량은 유령임분에서 6.30 Mg/ha으로 나타났고 임목 전체에서는 6.95 Mg/ha으로 나타났으며, 성숙 임분에서 11.61 Mg/ha, 임목전체에서 13.19 Mg/ha으로 나타났다. 줄기밀도($g/cm^3$)는 유령임분과 성숙임분에서 각각 0.338, 0.448로 나타났으며, 임령이 증가함에 따라 증가하는 일반적인 경향으로 나타났다. 바이오매스 확장계수는 유령임분과 성숙임분에서 각각 2.304~2.508, 1.318~1.644의 범위로 나타났다.

Keywords

Acknowledgement

Grant : 교토의 정서 대응 산림 탄소계정 기반구축

Supported by : 산림청

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