In this paper, artificial simulation tests were used to set up purification experiments of eutrophic waters with five kinds of concentration gradient. Effects of a halophyte named Suaeda glauca on removal and purification of nitrogen and phosphorus in the aquaculture waters at different eutrophic levels were compared and studied. The results showed that Suaeda glauca could grow in the waters at lower eutrophic level. However, it could grow well in the waters at higher eutrophic level only after a certain adaption phase. Furthermore, Suaeda had a good purification effect on nitrogen and phosphorus in water, with initial concentrations of 0.68 ~8.02 mg/L and 0.00 ~3.12 mg/L reduced to be 0.37 ~2.36 mg/L and 0.00 ~1.70 mg/L respectively, as well as played a role in reducing the water salinity from the initial rate of 3.2% to 2.6% ~2.9%, providing scientific basis for profound study of the patterns and mechanisms of eutrophication aquaculture water remediation by use of halophytes.%采用人工模拟试验的方法,通过设置5种浓度梯度的富营养化水体净化实验,比较研究了盐生植物碱蓬对不同程度富营养化海水养殖水体中氮、磷的净化效果和去除能力.结果显示,碱蓬在低富营养化水体中均可生长,在高营养化水体中需要一定的适应期适应后才可以良好生长;且碱蓬对水中的氮、磷均表现出良好的净化效果,浓度分别由初始的0.68~8.02 mg/L和0.00~3.12 mg/L降至0.37~2.36 mg/L和0.00~1.70 mg/L;对水体盐度的降低也有一定的作用,由初始的3.2%降至2.6% ~2.9%;实验结果为利用盐生植物修复海水养殖富营养化水体的模式和机理的深入研究提供了科学依据.
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