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Meta-Analysis of the Copper, Zinc, and Cadmium Absorption Capacities of Aquatic Plants in Heavy Metal-Polluted Water

Author

Listed:
  • Jing Li

    (College of Forestry, Beijing Forestry University, Beijing 100083, China)

  • Haixin Yu

    (College of Forestry, Beijing Forestry University, Beijing 100083, China)

  • Yaning Luan

    (College of Forestry, Beijing Forestry University, Beijing 100083, China)

Abstract

The use of aquatic plants for phytoremediation is an important method for restoring polluted ecosystems. We sought to analyze the capacity of different aquatic plant species to absorb heavy metals and to summarize available relevant scientific data on this topic. We present a meta-analysis of Cu, Zn, and Cd absorption capacities of aquatic plants to provide a scientific basis for the selection of aquatic plants suitable for remediation of heavy-metal pollution. Plants from the Gramineae, Pontederiaceae, Ceratophyllaceae, Typhaceae and Haloragaceae showed relatively strong abilities to absorb these metals. The ability of a particular plant species to absorb a given metal was strongly correlated with its ability to absorb the other metals. However, the absorption abilities varied with the plant organ, with the following trend: roots > stems > leaves. The pH of the water and the life habits of aquatic plants (submerged and emerged) also affect the plant’s ability to absorb elements. Acidic water aids the uptake of heavy metals by plants. The correlation observed between element concentrations in plants with different aquatic life habits suggested that the enrichment mechanism is related to the surface area of the plant exposed to water. We argue that this meta-analysis would aid the selection of aquatic plants suitable for heavy-metal absorption from polluted waters.

Suggested Citation

  • Jing Li & Haixin Yu & Yaning Luan, 2015. "Meta-Analysis of the Copper, Zinc, and Cadmium Absorption Capacities of Aquatic Plants in Heavy Metal-Polluted Water," IJERPH, MDPI, vol. 12(12), pages 1-16, November.
    • Handle: RePEc:gam:jijerp:v:12:y:2015:i:12:p:14959-14973:d:59466
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    Citations

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    Cited by:

    1. Dian Li & Linglei Zhang & Min Chen & Xiaojia He & Jia Li & Ruidong An, 2018. "Defense Mechanisms of Two Pioneer Submerged Plants during Their Optimal Performance Period in the Bioaccumulation of Lead: A Comparative Study," IJERPH, MDPI, vol. 15(12), pages 1-12, December.
    2. Maria Schück & Maria Greger, 2020. "Screening the Capacity of 34 Wetland Plant Species to Remove Heavy Metals from Water," IJERPH, MDPI, vol. 17(13), pages 1-12, June.
    3. Carolina Faccio Demarco & Thays França Afonso & Simone Pieniz & Filipe Carlos Selau & Fernando Machado Machado & Robson Andreazza, 2022. "Potential Phytoremediation of Aquatic Macrophyte Species for Heavy Metals in Urban Environments in the Southern Area of Brazil," Sustainability, MDPI, vol. 15(1), pages 1-12, December.

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