Journal of Climate Change Research (한국기후변화학회지)

The Korean Society of Climate Change Research (한국기후변화학회)
권호 표지

Study on the Estimation between CO2 Flux in Tree and Atmosphere

산림-대기 간 이산화탄소 교환량 산정 연구

  • Kim, So Young (Department Air Quality Research Division, Climate & Air Quality Research Department, National Institute of Environmental Research) ;
  • Park, Hyun Ju (Department Air Quality Research Division, Climate & Air Quality Research Department, National Institute of Environmental Research) ;
  • Hong, You Deog (Department Air Quality Research Division, Climate & Air Quality Research Department, National Institute of Environmental Research) ;
  • Han, Jin Seok (Climate & Air Quality Research Department, National Institute of Environmental Research) ;
  • Son, Jung Seok (Department Air Quality Research Division, Climate & Air Quality Research Department, National Institute of Environmental Research) ;
  • Park, Ji Hoon (Department Air Quality Research Division, Climate & Air Quality Research Department, National Institute of Environmental Research)
  • 김소영 (국립환경과학원 기후대기연구부 대기환경연구과) ;
  • 박현주 (국립환경과학원 기후대기연구부 대기환경연구과) ;
  • 홍유덕 (국립환경과학원 기후대기연구부 대기환경연구과) ;
  • 한진석 (국립환경과학원 기후대기연구부) ;
  • 손정석 (국립환경과학원 기후대기연구부 대기환경연구과) ;
  • 박지훈 (국립환경과학원 기후대기연구부 대기환경연구과)
  • Received : 2013.06.14
  • Accepted : 2013.10.22
  • Published : 2013.12.31

⟨ Previous Next ⟩

Abstract

The purpose of this study is to monitor the flux of $CO_2$ between the atmosphere and forest. The main research activities are conducted at Taehwa Mt. (Gangju, Kyeonggi, Korea), The Taehwa site is located 60 km north-east from the center of Seoul Metropolitan Area. The TRF flux tower is in the middle of a Korean Pine (Pinus koraiensis) plantation ($400m{\times}400m$), surrounded by a mixed forest. Eddy covariance method was used for $CO_2$ flux above the forest. $CO_2$ flux was measured from September to November 2011 and March to June 2012. It was found that $CO_2$ fluxes were observed between the atmosphere and forest. $CO_2$ was absorbed by plants through photosynthesis during the day and released during the night. $CO_2$ flux were respectively observed 0.7~0.2, 0.5~0.1, $0.3{\sim}0.1mgCO_2m^{-2}s^{-1}$ in Septem- ber, October, November 2011. $CO_2$ fluxes released by plants in the early morning(00:00~07:30h) and evening(18:00~24:00h) time. But $CO_2$ was absorbed by plants through photosynthesis in the day time(08:00~7:30h).

대기-산림 간에 $CO_2$의 물질교환량(Flux) 관측은 전 지구적 기후변화와 지역 대기질 연구를 위해 반드시 필요한 연구로 경기도 광주시 태화산에 대기관측타워를 건립하여, 산림지역의 $CO_2$ 플럭스를 관측하고, 이들 자료를 통해서 산림이 얼마만큼 전 지구적인 기후변화와 지역 대기질에 영향을 미치는지 파악하였다. 그 결과, 태화산 잣나무림의 $CO_2$ 흡수량은 최대 약 $0.5gm^{-2}h^{-1}$로 광릉 침엽수림과 국외 지역의 생태환경과 비교해 보면 $CO_2$의 흡원과 발원의 절대적인 양에는 차이를 나타내었으나, 일별 경향은 유사한 수준으로 나타났다. 또한 계절별 $CO_2$ 플럭스의 변화를 보면 9월의 $CO_2$교환량은 $-0.45{\sim}0.05mgCO_2m^{-2}s^{-1}$의 변동폭을 가지고, 이른 아침과 저녁시간에 $CO_2$ 발원을 보였으며, 낮 시간에 $CO_2$ 흡원을 보였다. $CO_2$ 교환량 일변동은 가을(9, 10월)에 비해 $CO_2$ 흡원이 약 0.5~1 시간 가량 일찍 시작되었으며, 최대 $CO_2$ 흡원이 $0.5mgCO_2m^{-2}s^{-1}$ 증가하였다.

Keywords