Oxygen consumption through the bed surface in Ariake sea

T. Tokunaga, H. Li, Y. Yamada, N. Matsunaga

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    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.

    Original languageEnglish
    Title of host publicationAdvances in Water Resources and Hydraulic Engineering - Proceedings of 16th IAHR-APD Congress and 3rd Symposium of IAHR-ISHS
    PublisherSpringer Berlin Heidelberg
    Pages1359-1364
    Number of pages6
    ISBN (Print)9783540894643
    DOIs
    Publication statusPublished - 2009
    Event16th 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 - Nanjing, China
    Duration: Oct 20 2008Oct 23 2008

    Publication series

    NameAdvances in Water Resources and Hydraulic Engineering - Proceedings of 16th IAHR-APD Congress and 3rd Symposium of IAHR-ISHS

    Other

    Other16th 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
    CountryChina
    CityNanjing
    Period10/20/0810/23/08

    All Science Journal Classification (ASJC) codes

    • Civil and Structural Engineering

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  • Cite this

    Tokunaga, T., Li, H., Yamada, Y., & Matsunaga, N. (2009). Oxygen consumption through the bed surface in Ariake sea. In Advances in Water Resources and Hydraulic Engineering - Proceedings of 16th IAHR-APD Congress and 3rd Symposium of IAHR-ISHS (pp. 1359-1364). (Advances in Water Resources and Hydraulic Engineering - Proceedings of 16th IAHR-APD Congress and 3rd Symposium of IAHR-ISHS). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-540-89465-0_238