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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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The purpose of the present study is to estimate the release of dissolved inorganic nitrogen and phosphorous from sediments of Deukryang Bay. One method used in this study is to calculate nutrients released from a concentration gradient between sediment porewaters and the overlying water based on the Fick`s law, and the other method is to measure nutrients released from the sediment-core experiments. The calculated and measured ammonium released from the sediments were 8.93㎍-atN/㎡·hr and 60.4㎍-atN/㎡·hr, respectively in July. 8.57㎍- atN/㎡·hr and 32.9㎍-atN/㎡·hr, respectively in October. The ammonium was released more highly in July than in October, and the measured ammonium flux was higher than the calculated one. The calculated nitrate plus nitrite released from the sediments were 0.31㎍-atN/㎡·hr in July and 0.84㎍-atN/㎡·hr in October. The measured nitrate plus nitrite released from the sediments was 282㎍-atN/㎡·hr in October. The calcuated was lower than the measured because the content of the nutrients in the sediments was always much more than in the overlying waters, and it has shown a differently seasonal pattern compared to the ammonium flux. The calculated phosphorous released from the sediments were 0.97㎍-atN/㎡·hr and measured negative fluxed -6.50 ㎍-atN/㎡·hr in July, and calculated 0.18 ㎍-atN/㎡·hr and measured 24.6 ㎍-atN/㎡·hr, respectively in October.
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UCI(KEPA) : I410-ECN-0102-2023-451-001813184