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  • Nutrient accumulation in five plant species grown in bioretention systems dosed with wastewater

    Author(s)
    Gautam, DN
    Greenway, M
    Griffith University Author(s)
    Greenway, Margaret
    Year published
    2014
    Metadata
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    Abstract
    Many studies have concluded that vegetation has a significant role in the removal of nutrients from wastewater, but few have investigated nitrogen and phosphorus accumulation in plant biomass in bioretention mesocosms. This study quantifies the nutrients accumulated in five native plant species grown in bioretention mesocosms established in Queensland, Australia. The species Banksia integrifolia, Callistemon pachyphyllus, Carpobrotus glaucesens, Dianella brevipedunculata and Pennisetum alopecuroides were grown in gravel, loam and sand media. The plants with higher growth rate and biomass retained a higher amount of nutrients ...
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    Many studies have concluded that vegetation has a significant role in the removal of nutrients from wastewater, but few have investigated nitrogen and phosphorus accumulation in plant biomass in bioretention mesocosms. This study quantifies the nutrients accumulated in five native plant species grown in bioretention mesocosms established in Queensland, Australia. The species Banksia integrifolia, Callistemon pachyphyllus, Carpobrotus glaucesens, Dianella brevipedunculata and Pennisetum alopecuroides were grown in gravel, loam and sand media. The plants with higher growth rate and biomass retained a higher amount of nutrients in roots, stem and leaves. Callistemon and Pennisetum were the best species to remove nutrients from wastewater in subtropical Australia. The average total nitrogen retained in plant biomass was 4999 mg/m2/yr in sand, 7899 mg/m2/yr in loam and 8131 mg/m2/yr in gravel media. The average total phosphorus retained in plant biomass was 1980 mg/m2/yr in sand, 2073 mg/m2/yr in gravel and 4286 mg/m2/yr in loam.
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    Journal Title
    Australasian Journal of Environmental Management
    Volume
    21
    Issue
    4
    DOI
    https://doi.org/10.1080/14486563.2014.944589
    Subject
    Environmental Science and Management not elsewhere classified
    Environmental Sciences
    Studies in Human Society
    Publication URI
    http://hdl.handle.net/10072/67719
    Collection
    • Journal articles

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