TY - GEN
T1 - Oxygen consumption through the bed surface in Ariake sea
AU - Tokunaga, T.
AU - Li, H.
AU - Yamada, Y.
AU - Matsunaga, N.
PY - 2009
Y1 - 2009
N2 - It is very important to quantify the oxygen consumption velocity through the bed surface to predict the development of hypoxic water mass. In this study, the sediment oxygen consumption (SOC) was estimated by a laboratory experiment with intact cores, and the vertical distributions of the sediment characteristics were obtained over the core 10 cm thick from the bed surface. The sediment cores were taken from 11 sites on tidal flats in the Ariake Sea. The vertical distributions of the sediment characteristics indicate that the silt tends to accumulate easily a large amount of organic matter and to make the sediment environment deteriorate. The experimental results of SOC showed that the values of dissolved oxygen decrease exponentially with time and that a significant correlation is seen between the sum of chlorophyll a and pheophytin concentrations and SOC velocity.
AB - It is very important to quantify the oxygen consumption velocity through the bed surface to predict the development of hypoxic water mass. In this study, the sediment oxygen consumption (SOC) was estimated by a laboratory experiment with intact cores, and the vertical distributions of the sediment characteristics were obtained over the core 10 cm thick from the bed surface. The sediment cores were taken from 11 sites on tidal flats in the Ariake Sea. The vertical distributions of the sediment characteristics indicate that the silt tends to accumulate easily a large amount of organic matter and to make the sediment environment deteriorate. The experimental results of SOC showed that the values of dissolved oxygen decrease exponentially with time and that a significant correlation is seen between the sum of chlorophyll a and pheophytin concentrations and SOC velocity.
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U2 - 10.1007/978-3-540-89465-0_238
DO - 10.1007/978-3-540-89465-0_238
M3 - Conference contribution
AN - SCOPUS:84903442527
SN - 9783540894643
T3 - Advances in Water Resources and Hydraulic Engineering - Proceedings of 16th IAHR-APD Congress and 3rd Symposium of IAHR-ISHS
SP - 1359
EP - 1364
BT - Advances in Water Resources and Hydraulic Engineering - Proceedings of 16th IAHR-APD Congress and 3rd Symposium of IAHR-ISHS
PB - Springer Berlin Heidelberg
T2 - 16th Congress of Asia and Pacific Division of International Association of Hydraulic Engineering and Research, APD 2008 and the 3rd IAHR International Symposium on Hydraulic Structures, ISHS 2008
Y2 - 20 October 2008 through 23 October 2008
ER -