中文关键词狐尾藻金鱼藻磷形态吸收率迁移转化 英文关键词Myriophyllum spicatum L.Ceratophyllum demersumphosphorus fractionabsorptivitymigration and transformation

作者	单位	E-mail
杨文斌	安徽师范大学环境科学与工程学院, 安徽省水土污染治理与修复工程实验室, 芜湖 241003	ywb1968@mail.ahnu.edu.cn
高顺峰	安徽师范大学环境科学与工程学院, 安徽省水土污染治理与修复工程实验室, 芜湖 241003
万锐	安徽师范大学环境科学与工程学院, 安徽省水土污染治理与修复工程实验室, 芜湖 241003
孙祥	安徽师范大学环境科学与工程学院, 安徽省水土污染治理与修复工程实验室, 芜湖 241003
王赢	安徽师范大学环境科学与工程学院, 安徽省水土污染治理与修复工程实验室, 芜湖 241003 安徽省农业科学院土壤肥料研究所, 合肥 230001

中文摘要 在实验室模拟研究根系发达的沉水植物狐尾藻（Myriophyllum spicatum L.）和无固定根的沉水植物金鱼藻（Ceratophyllum demersum）对上覆水、间隙水中各形态磷的浓度及含量比例的影响，探讨不同根系特征的沉水植物对上覆水和间隙水中各形态磷的影响.结果表明，狐尾藻和金鱼藻生长期对上覆水和间隙水中各溶解态磷的浓度有较大的影响：①狐尾藻生长期对上覆水中DTP、SRP、DOP吸收率分别为7.0%、11.7%、3.5%，对间隙水中DTP、SRP、DOP吸收率分别为20.8%、12.5%、48.4%；②金鱼藻生长期对上覆水中DTP、SRP、DOP吸收率分别为30.3%、54.9%、13.2%，对间隙水中DTP、SRP、DOP吸收率分别为19.3%、3.8%、30.4%；③狐尾藻组、金鱼藻组、对照组上覆水中SRP含量比例较初始状态分别减少了13.0%、34.0%、-0.9%，PP分别增加了18.2%、33.1%、4.2%，DOP分别增加了7.2%、17.68%、-4.35%.研究结果可为同类富营养化湖泊生态修复提供理论指导. 英文摘要 The effects of Myriophyllum spicatum L. with developed root systems and rootless Ceratophyllum demersum on the concentration and proportion of different phosphorus fractions in the overlying water and the interstitial water were investigated by batch simulation experiments. The effects of different types of submerged macrophytes on the phosphorus fraction in the overlying water and interstitial water were explored. The results indicated a significant influence on the concentration of dissolved phosphorus in the overlying water and interstitial water by the growth of Myriophyllum spicatum L. and Ceratophyllum demersum. ① The absorptivities of DTP, SRP, and DOP by Myriophyllum spicatum L. in the overlying water were 7.0%, 11.7%, and 3.5%, respectively, and in the interstitial water were 20.8%, 12.5%, and 48.4%, respectively. ② The absorptivities of DTP, SRP, and DOP by Ceratophyllum demersum in the overlying water were 30.3%, 54.9%, and 13.2%, respectively, and in the interstitial water were 19.3%, 3.8%, and 30.4%, respectively. ③ The content of SRP in Myriophyllum spicatum L. group, Ceratophyllum demersum group, and the control group decreased 13.0%, 34.0%, and -0.9%, respectively; the PP increased 18.2%, 33.1%, and 4.2%, respectively; and the DOP increased 7.2%, 17.68%, and -4.35%, respectively. The results provide reference for eutrophic lake ecologic restoration.

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