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@ARTICLE{Heil:820934,
      author       = {Heil, Jannis and Vereecken, H. and Brüggemann, N.},
      title        = {{A} review of chemical reactions of nitrification
                      intermediates and their role in nitrogen cycling and
                      nitrogen trace gas formation in soil},
      journal      = {European journal of soil science},
      volume       = {67},
      number       = {1},
      issn         = {1351-0754},
      address      = {Oxford [u.a.]},
      publisher    = {Wiley-Blackwell},
      reportid     = {FZJ-2016-06198},
      pages        = {23 - 39},
      year         = {2016},
      abstract     = {Soil is a major source of nitrogen trace gases (NTGs).
                      Microbial denitrification has long been identified as a
                      source of NTGs under reducing conditions, whereas the
                      production of NTGs during nitrification is far from being
                      completely understood. This review updates information about
                      the role of abiotic processes in the formation of gaseous N
                      products in soil and brings attention to the potential
                      interplay of microbial and chemical soil processes that tend
                      to be neglected in research on NTG emissions. Several
                      reactions that involve the nitrification intermediates,
                      nitrite (NO2−) and hydroxylamine (NH2OH), are known to
                      produce the NTGs nitric oxide (NO) and nitrous oxide (N2O).
                      These abiotic reactions are: the self-decomposition of
                      NO2−, reactions of NO2− with reduced metal cations,
                      nitrosation of soil organic matter (SOM) by NO2−, the
                      reaction between NO2− and NH2OH, and the oxidation of
                      NH2OH by Fe3+ or MnO2. These reactions can occur over a
                      broad range of soil characteristics, but they are
                      disregarded in most current research on NTG studies in
                      favour of biological processes only. Relatively few studies
                      have tried to quantify the contribution of abiotic processes
                      to total NTG emissions, which results in uncertainty in
                      emission models and mitigation strategies. It is difficult
                      to discriminate between biological and abiotic sources
                      because both processes can proceed at the same time in the
                      same soil layer. The potential of stable isotope techniques
                      to disentangle the different processes in soil and to
                      constrain budgets of atmospheric NTGs better are
                      highlighted. Recent advances in stable isotope technologies,
                      such as infrared real-time laser spectroscopy, provide
                      considerable potential for both natural abundance and tracer
                      studies in this field.},
      cin          = {IBG-3},
      ddc          = {630},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {255 - Terrestrial Systems: From Observation to Prediction
                      (POF3-255)},
      pid          = {G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000368079600006},
      doi          = {10.1111/ejss.12306},
      url          = {https://juser.fz-juelich.de/record/820934},
}