Using d15N values to characterise the nitrogen nutrient pathways from intensive animal units

Skinner, R. A.; Ineson, P.; Jones, H.; Sleep, D. ORCID:; Rank, R.. 2006 Using d15N values to characterise the nitrogen nutrient pathways from intensive animal units. Rapid Communications in Mass Spectrometry, 20. 2858-2864.

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Previous studies on foliar 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 15N values as pollution indicators. The atmospheric dispersion model UK-ADMS has also been used to model atmospheric 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.

Item Type: Publication - Article
Digital Object Identifier (DOI):
Programmes: CEH Programmes pre-2009 publications > Biogeochemistry
UKCEH and CEH Sections/Science Areas: _ Environmental Chemistry & Pollution
_ Ecological Processes in Freshwater & Soils
ISSN: 0951-4198
NORA Subject Terms: Agriculture and Soil Science
Atmospheric Sciences
Date made live: 14 May 2008 08:15 +0 (UTC)

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