Abstract Sediments can release Phosphorus (P) into overlying water under certain environmental conditions, which may have a significant impact on water quality and result in continuous eutrophication. We used laboratory experiments to evaluate effects of pH, temperature, and Dissolved Oxygen (DO) on P release from Lake Xuanwu, China. The results demonstrate that effects of pH on P release from sediments were distinct; more P was released under alkaline conditions than acidic conditions, but the least amount of P was released under neutral pH. Increasing temperature resulted in more release of P and a longer time to achieve equilibrium between sediment P release and P in overlying water. Influences of DO supply levels on P release were also quite significant; anaerobic conditions were more conducive to the release of P than aerobic conditions. Orthogonal experiments show that the 3 significant factors on P release from sediments were, in descending order, DO, temperature, and pH. These findings have important management implications for Lake Xuanwu.


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    Titel :

    Phosphorus release from lake sediments: Effects of pH, temperature and dissolved oxygen


    Beteiligte:
    Wu, Yunhai (Autor:in) / Wen, Yajun (Autor:in) / Zhou, Jianxin (Autor:in) / Wu, Yunying (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    27.12.2013


    Format / Umfang :

    7 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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