NH4+ adsorption characteristics of tidal flats along the Kumamoto coast of Ariake Sea

T. Tokunaga, Nobuhiro Matsunaga, A. Takahashi

    Research output: Contribution to journalArticle

    Abstract

    NH4+ adsorption characteristics of tidal flats along the Kumamoto coast of Ariake Sea. Journal of Coastal Research, SI 50 (Proceedings of the 9th International Coastal Symposium), 879 - 883. Gold Coast, Australia, ISSN 0749.0208 The NH4+ adsorption characteristics of sediments were investigated in sand y tidal flats along the Kumamoto coast of Ariake Sea, Kyushu Island , Japan. The vertical distributions of NH4-N and PO4-P concentrations of pore water showed that the organic substances in the seabed were actively decomposed. The values of NH4+ adsorbed to mud were evaluated by means of the extraction method using 2 mol/l KCl solutions, and they increased monotonically with the increases of the mud content and the NH4+ concentration in the pore water. It was found that in the sand y tidal flats along the Kumamoto coast of the Ariake Sea, the amount of adsorbed NH 4+ to the mud was much larger than that included in the pore water and most of the NH4+ in the seabed was adsorbed to the mud, i.e., clay and silt particles.

    Original languageEnglish
    Pages (from-to)879-883
    Number of pages5
    JournalJournal of Coastal Research
    Issue numberSPEC. ISSUE 50
    Publication statusPublished - Dec 1 2007

      Fingerprint

    All Science Journal Classification (ASJC) codes

    • Ecology
    • Water Science and Technology
    • Earth-Surface Processes

    Cite this

    Tokunaga, T., Matsunaga, N., & Takahashi, A. (2007). NH4+ adsorption characteristics of tidal flats along the Kumamoto coast of Ariake Sea. Journal of Coastal Research, (SPEC. ISSUE 50), 879-883.