OXYGEN CONSUMPTION THROUGH THE BED SURFACE IN ARIAKE SEA
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.
Sediment ozygen consumption Hypozia Tidal flat Ariake Sea
T.Tokunaga H.Li Y.Yamada N.Matsunaga
Institute of Lowland Technology, Saga University, Japan Dept.Of Earth System Science and Technology, Kyushu University Kasuga, 816-8580 Japan
国际会议
第16届亚太地区国际水利学大会暨第3届水工水力学国际研讨会(16th IAHR-APD Congress and 3rd Symoposium of IAHR-ISHS)
南京
英文
1359-1364
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）