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  • Using δ15N values to characterise the nitrogen nutrient pathways from intensive animal units

    Author(s)
    Skinner, RA
    Ineson, P
    Jones, H
    Sleep, D
    Rank, R
    Griffith University Author(s)
    Skinner, Richard
    Year published
    2006
    Metadata
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    Abstract
    Previous studies on foliar δ 15N values, in certain bryophytes, have indicated signature similarities to source pollutants. The object of this study was to investigate the effect further, by examining the mechanisms whereby isotopic fractionation occurs in systems such as atmospheric ammonia (NH3), throughfall, vegetation and soil. Measurements taken in and around point emission sources will then be used to characterise the various fractionation effects associated with these N transformations, as well as to demonstrate some of the issues associated with using δ 15N values as pollution indicators. The atmospheric dispersion ...
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    Previous studies on foliar δ 15N values, in certain bryophytes, have indicated signature similarities to source pollutants. The object of this study was to investigate the effect further, by examining the mechanisms whereby isotopic fractionation occurs in systems such as atmospheric ammonia (NH3), throughfall, vegetation and soil. Measurements taken in and around point emission sources will then be used to characterise the various fractionation effects associated with these N transformations, as well as to demonstrate some of the issues associated with using δ 15N values as pollution indicators. The atmospheric dispersion model UK‐ADMS has also been used to model atmospheric δ 15NH3 emissions, with signatures exhibiting marked negative shifts immediately downwind of an agricultural NH3 source. Similar dispersion patterns were mapped for NH3 concentration data illustrating the link between these two forms of measurement.
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    Journal Title
    Rapid Communications in Mass Spectrometry
    Volume
    20
    Issue
    19
    DOI
    https://doi.org/10.1002/rcm.2681
    Subject
    Chemical sciences
    Earth sciences
    Biological sciences
    Publication URI
    http://hdl.handle.net/10072/395254
    Collection
    • Journal articles

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