基于韦伯-费希纳定律的海水水质富营养化评价——以中街山列岛网箱养殖区为例

Eutrophication Assessment of Seawater Quality Based on the Weber-Fechner Law——A Case Study of Cage-cultured Waters Around the Zhongjieshan Archipelago

基于韦伯-费希纳定律基本原理,以表征海水水质富营养化水平的COD、DIN、PO4-P、Chl-a、DO等水质参数作为评价指标,通过确定海水富营养化等级与综合影响指数之间的关系,构造海水水质富营养化评价模型。研究以中街山列岛海域11个监测点的水质为例进行评价,并与富营养化指数法的评价结果进行比较。结果表明,韦伯-费希纳定律计算过程简单、评价结论合理准确,可应用于海水富营养化评价中。

Based on the Weber-Fechner law, the model for eutrophication assessment of seawater quality was built by taking water quality parameters like COD ,DIN ,PO4-P, Chl-a,DO as assessment indicators and by establishing the function relationship between the seawater eutrophication level and the comprehensive effect index. As an example, water quality at eleven monitoring stations in Zhongjieshan archipelago waters was assessed and compared with the eutrophication index. The results showed that the Weber-Fechner law can be used in seawater eutrophication assessment because of its simple calculation process as well as its rea- sonable and accurate evaluation conclusion.