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Using delta N-15 values to characterise the nitrogen nutrient pathways from intensive animal units

Research output: Contribution to journalArticle

Published copy (DOI)

Author(s)

  • R. A. Skinner
  • P. Ineson
  • H. Jones
  • D. Sleep
  • R. Rank

Department/unit(s)

Publication details

JournalRapid Communications in Mass Spectrometry
DatePublished - 2006
Issue number19
Volume20
Number of pages7
Pages (from-to)2858-2864
Original languageEnglish

Abstract

Previous studies on foliar delta N-15 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 delta N-15 values as pollution indicators. The atmospheric dispersion model UK-ADMS has also been used to model atmospheric delta(NH3)-N-15 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. Copyright (c) 2006 John Wiley & Sons, Ltd.

    Research areas

  • ISOTOPIC COMPOSITION, ATMOSPHERIC AMMONIA, NATURAL-ABUNDANCE, N-15 ABUNDANCE, ECOLOGY, NITRATE, DIET, FLOW, RAIN

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