The Korean Journal of Ecology

The Ecological Society of Korea (한국생태학회)
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Organic Carbon Distribution in an Oak Forest

상수리나무림의 유기탄소 분포에 관한 연구

  • Published : 2005.10.31
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Abstract

In order to investigate the organic carbon distribution, net primary production, annual litter production, organic carbon in litter layer, soil organic carbon and soil respiration were studied in an oak forest, Kongju, Chungnam Province in Korea. Net primary production was estimated to 15.84 ton $C{\cdot}ha^{-1}{\cdot}yr^{-1}$. The amount of carbon allocated to leaf and reproductive organ, branch, stem and root was 1.71, 4.03, 7.34, 2.76 ton $C{\cdot}ha^{-1}{\cdot}yr^{-1}$ respectively. Annual litter production was 5.21 $ton{\cdot}ha^{-1}{\cdot}yr^{-1}$, which amounted to 2.35 ton $C{\cdot}ha^{-1}{\cdot}yr^{-1}$. Average amount of organic carbon in litter layer (L+F) was 6.06 ton C/ha, and that of L layer decreased from winter through summer. Soil organic carbon decreased along the soil depth. Average amount of soil organic carbon in this oak forest was 165.19 ton C/ha. The amount of carbon evolved through soil respiration was 11.24 ton $C{\cdot}ha^{-1}{\cdot}yr^{-1}$. Net amount of 4.60 ton $C{\cdot}ha^{-1}{\cdot}yr^{-1}$ was absorbed from the atmosphere by this oak forest.

삼림생태계의 유기탄소 분포를 파악하기 위하여, 공주지역 상수리나무림에서 연순생산량, 연간 낙엽생산량, 임상 낙엽층의 유기탄소량, 토양의 유기탄소량, 연간 토양호흡량을 조사하였다. 조사기간 중 상수리나무림의 순일차생산량은 15.84 ton $C{\cdot}ha^{-1}{\cdot}yr^{-1}$으로 추정되었으며, 잎과 생식기관, 가지, 줄기, 뿌리에 각각 1.71, 4.03, 7.34, 2.76 ton $C{\cdot}ha^{-1}{\cdot}yr^{-1}$이 배분되었다. 연간 낙엽생산량은 5.21 $ton{\cdot}ha^{-1}{\cdot}yr^{-1}$이었으며, 생산된 낙엽을 통해 연간 임상으로 이입되는 유기탄소량은 2.35 ton $C{\cdot}ha^{-1}{\cdot}yr^{-1}$이었다. 상수리나무 임상 낙엽층의 평균 유기탄소량은 6.06 ton C/ha로 조사되었으며, L층의 유기탄소량은 동절기에서 하절기로 갈수록 감소하는 경향을 보였다. 토양층별 유기탄소 함량은 표층에서 하층으로 갈수록 낮아졌으며, 본 상수리나무림 토양의 단위면적당 유기탄소량은 165.19 ton C/ha로 조사되었다. 상수리나무림은 토양호흡을 통해 연간 11.24 ton $C{\cdot}ha^{-1}{\cdot}yr^{-1}$를 대기 중으로 방출하였다. 조사지 상수리나무림은 대기 중으로부터 연간 4.60 ton $C{\cdot}ha^{-1}{\cdot}yr^{-1}$을 순흡수 하였다.

Keywords

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