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Effects of Aquatic Plant Diversity and Cipangopaludinas chinensis on Nitrogen Removal and Its Stability in Constructed Wetlands

Author

Listed:
  • Guangqian Kuang

    (College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China)

  • Jingwen Tao

    (College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China)

  • Xiangyong Zheng

    (College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
    National & Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, Wenzhou University, Wenzhou 325035, China
    Institute for Eco-Environmental Research of Sanyang Wetland, Wenzhou University, Wenzhou 325035, China)

  • Luping Yang

    (College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China)

  • Kai Shen

    (College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China)

  • Xile Xu

    (College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China)

  • Derong Xiao

    (College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
    National & Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, Wenzhou University, Wenzhou 325035, China
    Institute for Eco-Environmental Research of Sanyang Wetland, Wenzhou University, Wenzhou 325035, China)

  • Min Zhao

    (College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
    National & Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, Wenzhou University, Wenzhou 325035, China
    Institute for Eco-Environmental Research of Sanyang Wetland, Wenzhou University, Wenzhou 325035, China)

  • Wenjuan Han

    (College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
    National & Local Joint Engineering Research Center for Ecological Treatment Technology of Urban Water Pollution, Wenzhou University, Wenzhou 325035, China
    Institute for Eco-Environmental Research of Sanyang Wetland, Wenzhou University, Wenzhou 325035, China)

Abstract

In constructed wetlands (CWs), aquatic plant diversity can enhance system nitrogen (N) removal. However, the impact of aquatic plant diversity with different life forms and benthic animals on the N (NO 3 − -N, NH 4 + -N, TIN) removal and its stability has been neglected. This study established 42 simulated CWs, selecting three aquatic plant species with different life forms to establish plant species diversity, with benthic animals ( Cipangopaludinas chinensis) added or not added at each diversity level. The results indicated that (1) the presence of the aquatic plant Pistia stratiotes increased the effluent nitrate nitrogen (NO 3 − -N) concentration. (2) In systems with or without C. chinensis , the plant species richness increased the temporal stability of the effluent NO 3 − -N concentration; the presence of the aquatic plant Vallisneria natans increased the temporal stability of the effluent total inorganic nitrogen (TIN) concentration in systems without C. chinensis and the temporal stability of the effluent NO 3 − -N concentration in systems with C. chinensis . (3) Adding C. chinensis significantly reduced the temporal stability of the effluent TIN concentration in the monoculture of V. natans . The rational establishment of aquatic plant diversity with benthic animals can improve the effluent’s water quality while ensuring the water quality’s temporal stability.

Suggested Citation

  • Guangqian Kuang & Jingwen Tao & Xiangyong Zheng & Luping Yang & Kai Shen & Xile Xu & Derong Xiao & Min Zhao & Wenjuan Han, 2024. "Effects of Aquatic Plant Diversity and Cipangopaludinas chinensis on Nitrogen Removal and Its Stability in Constructed Wetlands," Sustainability, MDPI, vol. 16(21), pages 1-14, October.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:21:p:9492-:d:1511622
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    References listed on IDEAS

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    1. Hu, M.H. & Ao, Y.S. & Yang, X.E. & Li, T.Q., 2008. "Treating eutrophic water for nutrient reduction using an aquatic macrophyte (Ipomoea aquatica Forsskal) in a deep flow technique system," Agricultural Water Management, Elsevier, vol. 95(5), pages 607-615, May.
    2. David Tilman & Peter B. Reich & Johannes M. H. Knops, 2006. "Biodiversity and ecosystem stability in a decade-long grassland experiment," Nature, Nature, vol. 441(7093), pages 629-632, June.
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