Ocean and Polar Research

  • 제28권2호
  • /
  • Pages.119-127
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  • 2006
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  • 1598-141X(pISSN)
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  • 2234-7313(eISSN)
한국해양과학기술원 (Korea Institute of Ocean Science & Technology)
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강화도 남부 갯벌퇴적물에서 산소 미세전극을 이용한 산소소모율 추정

Estimation of Oxygen Consumption Rates by Using an Oxygen Microelectrode in Ganghwa Intertidal Flat

  • 김동선 (한국해양연구원 해양환경연구본부)
  • 발행 : 2006.06.30
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초록

We measured oxygen microprofiles using an oxygen microelectrode in Ganghwa intertidal flat in April and September. Oxygen consumption rate was calculated by using three different methods based on the oxygen microprofiles. The method using the PROFILE software was thought to be the most reliable among the three methods. The oxygen consumption rates calculated at station D1 by using the PROFILE software were 10.5 and 6.27mmol $m^{-2}d^{-1}$ in April and September, respectively. At station D2, they were 10.9mmol $m^{-2}d^{-1}$ in April and 5.39 mmol $m^{-2}d^{-1}$ in September. There was little spatial variation, but large seasonal variation, with almost two times larger values in April than in September. The higher rate in April is ascribed to higher oxygen concentration in the seawater and higher organic carbon content in the surface sediments, which probably accelerate oxygen consumption for organic matter decomposition in the sediments. Aerobic remineralization rates estimated from the oxygen consumption rates ranged from 4.14 to 8.07 mmol C $m^{-2}d^{-1}$ in Ganghwa intertidal flat, which were much lower than the anaerobic remineralization rate.

키워드

참고문헌

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피인용 문헌

  1. Rapid organic matter mineralization coupled to iron cycling in intertidal mud flats of the Han River estuary, Yellow Sea vol.92, pp.3, 2009, https://doi.org/10.1007/s10533-009-9287-y