% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{LewickaSzczebak:188370,
      author       = {Lewicka-Szczebak, Dominika and Well, Reinhard and Bol,
                      Roland and Gregory, Andrew S. and Matthews, G. Peter and
                      Misselbrook, Tom and Whalley, W. Richard and Cardenas, Laura
                      M.},
      title        = {{I}sotope fractionation factors controlling isotopocule
                      signatures of soil-emitted ${N}_2{O}$ produced by
                      denitrification processes of various rates},
      journal      = {Rapid communications in mass spectrometry},
      volume       = {29},
      number       = {3},
      issn         = {0951-4198},
      address      = {New York, NY},
      publisher    = {Wiley Interscience},
      reportid     = {FZJ-2015-01768},
      pages        = {269 - 282},
      year         = {2015},
      abstract     = {RATIONALEThis study aimed (i) to determine the isotopic
                      fractionation factors associated with N2O production and
                      reduction during soil denitrification and (ii) to help
                      specify the factors controlling the magnitude of the isotope
                      effects. For the first time the isotope effects of
                      denitrification were determined in an experiment under oxic
                      atmosphere and using a novel approach where N2O production
                      and reduction occurred simultaneously.METHODSSoil
                      incubations were performed under a He/O2 atmosphere and the
                      denitrification product ratio [N2O/(N2 + N2O)] was
                      determined by direct measurement of N2 and N2O fluxes. N2O
                      isotopocules were analyzed by mass spectrometry to determine
                      δ18O, δ15N and 15 N site preference within the linear
                      N2O molecule (SP). An isotopic model was applied for the
                      simultaneous determination of net isotope effects (η) of
                      both N2O production and reduction, taking into account
                      emissions from two distinct soil pools.RESULTSA clear
                      relationship was observed between 15 N and 18O isotope
                      effects during N2O production and denitrification rates. For
                      N2O reduction, diverse isotope effects were observed for the
                      two distinct soil pools characterized by different product
                      ratios. For moderate product ratios (from 0.1 to 1.0) the
                      range of isotope effects given by previous studies was
                      confirmed and refined, whereas for very low product ratios
                      (below 0.1) the net isotope effects were much
                      smaller.CONCLUSIONSThe fractionation factors associated with
                      denitrification, determined under oxic incubation, are
                      similar to the factors previously determined under anoxic
                      conditions, hence potentially applicable for field studies.
                      However, it was shown that the η18O/η15N ratios,
                      previously accepted as typical for N2O reduction processes
                      (i.e., higher than 2), are not valid for all conditions.
                      Copyright © 2014 John Wiley $\&$ Sons, Ltd.},
      cin          = {IBG-3},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {255 - Terrestrial Systems: From Observation to Prediction
                      (POF3-255) / 255 - Terrestrial Systems: From Observation to
                      Prediction (POF3-255)},
      pid          = {G:(DE-HGF)POF3-255 / G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000346974000006},
      pubmed       = {pmid:26411625},
      doi          = {10.1002/rcm.7102},
      url          = {https://juser.fz-juelich.de/record/188370},
}