湖北农业科学 ›› 2021, Vol. 60 ›› Issue (1): 20-26.doi: 10.14088/j.cnki.issn0439-8114.2021.01.005

• 资源·环境 • 上一篇    下一篇

草-溞生物组合修复农田周边富营养化水体氮、磷研究

张春雪1, 王晗阳1,2, 魏孝承1, 郑向群1, 杨波1   

  1. 1.农业农村部环境保护科研监测所,天津 300191;
    2.天津城建大学,天津 300384
  • 收稿日期:2020-07-31 出版日期:2021-01-10 发布日期:2021-02-02
  • 通讯作者: 杨 波,女,助理研究员,博士,主要从事乡村环境保护研究,(电子信箱)yangbopipi@126.com。
  • 作者简介:张春雪(1986-),女,河北廊坊人,助理研究员,博士,主要从事乡村环境保护研究,(电话)022-23610078(电子信箱)zhangchunxue215@163.com。
  • 基金资助:
    天津市自然科学基金项目(19JCQNJC13400);农业农村部环境保护科研监测所基本科研业务费专项(2020-jbkyywf-yb);中国农业科学院科技创新工程项目

Study on the nitrogen and phosphorous removal effects on eutrophic water by aquatic plants and Daphnia magna

ZHANG Chun-xue1, WANG Han-yang1,2, WEI Xiao-cheng1, ZHENG Xiang-qun1, YANG Bo1   

  1. 1. Agro-Environmental Protection Institute,Ministry of Agriculture and Rural Affairs,Tianjin 300191,China;
    2. Tianjin Chengjian University,Tianjin 300384,China
  • Received:2020-07-31 Online:2021-01-10 Published:2021-02-02

摘要: 为改善传统生物修复技术的不足,进一步开发生物联合修复技术,基于生物操纵理论和水生植物修复理论,结合目标水体现状,以大型溞(Daphnia magna)作为滤食性动物代表,狐尾藻(Myriophyllum aquaticum)和金鱼藻(Ceratophyllum demersum)作为沉水植物代表,考察单一生物及2种生物组合对富营养化水体的修复作用。结果表明,大型溞对水体总氮(TN)、总磷(TP)和硝氮(NO3--N)的消减作用均不显著,氨氮(NH4+-N)浓度随大型溞添加密度的增加而上升;狐尾藻和金鱼藻对TN、TP、NO3--N、NH4+-N的消减作用显著,其中狐尾藻消减作用更强;草-溞联合处理比单一溞处理对水体中营养盐的抑制效果更优,其中以低密度大型溞(25 ind/L)+狐尾藻的消减作用最为显著。

关键词: 富营养化, 生物操纵, 大型溞(Daphnia magna), 狐尾藻(Myriophyllum aquaticum), 金鱼藻(Ceratophyllum demersum)

Abstract: To improve the deficiencies of traditional bioremediation technology and further develop the combined bioremediation technology,based on the biomanipulation theory and the aquatic plant restoration theory,combining with current status of target water bodies,the effects of single organisms and the combination of two organisms on the restoration of eutrophic water were investigated by taking Daphnia magna as the representative of filter-feeding animals,Myriophyllum aquaticum and Ceratophyllum demersum as the representatives of submerged plants.The results showed that D.magna could reduce the concentration of total nitrogen (TN),total phosphorus (TP) and nitrate (NO3--N) in water,but not significantly.The concentration of ammonia (NH4+-N) increases with the density of D.magna.The reduction effect of M.aquaticum and C.demersum on TN,TP,NO3--N and NH4+-N was significant,especially M.aquaticum’s.Compared with the single D.magna treatment,the submerged plants - D.magna combined treatment has better inhibitory effect on the water nutrients.Both M.aquaticum and C.demersum can significantly inhibit the increase of NH4+-N concentration caused by the excretion and death of D.magna.Among them,the combination of low-density D.magna (25 ind/L) and M.aquaticum has the most significant reduction effect.

Key words: eutrophic, biomanipulation, Daphnia magna, Myriophyllum aquaticum, Ceratophyllum demersum

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