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@ARTICLE{Liu:851713,
      author       = {Liu, Shurong and Schloter, M. and Brüggemann, N.},
      title        = {{A}ccumulation of {NO} 2 − during periods of drying
                      stimulates soil {N} 2 {O} emissions during subsequent
                      rewetting},
      journal      = {European journal of soil science},
      volume       = {69},
      number       = {5},
      issn         = {1351-0754},
      address      = {Oxford [u.a.]},
      publisher    = {Wiley-Blackwell},
      reportid     = {FZJ-2018-05245},
      pages        = {936 - 946},
      year         = {2018},
      abstract     = {Rewetting of soil might contribute considerably to the
                      annual production of nitrous oxide (N2O) in ecosystems
                      subjected to long dry periods. Therefore, it is crucial to
                      elucidate the most important factors responsible for large
                      pulses of N2O with rewetting. In this study, we carried out
                      a series of rewetting experiments with soil samples
                      collected from upland and riparian forest, grassland and
                      arable land. We analysed the dynamics of ammonium (NH4+),
                      nitrite (NO2−), nitrate (NO3−) and dissolved organic
                      matter (DOM) of air‐dried soil samples after rewetting. We
                      also analysed the effects of sterilization of soil samples
                      by γ‐irradiation on N2O production with rewetting.
                      Furthermore, we explored the effects of rewetting and
                      sterilization on the isotopic composition of N2O in the
                      different soil samples. The grassland soil produced the
                      largest amount of N2O (64.1 μg N kg−1) in 1 hour
                      on rewetting, followed by upland forest soil, whereas it was
                      least for soils from riparian forest and arable land. Gamma
                      irradiation, however, decreased soil N2O production from
                      forest soil samples by $30–90\%$ after rewetting, but
                      increased N2O production in grassland and arable land soils
                      three‐fold and two‐fold, respectively. Correlation
                      analysis revealed that NO2− concentration in the soil
                      samples at the time of rewetting was the most relevant
                      factor that explained soil N2O production after rewetting.
                      Furthermore, the addition of NO2− before rewetting
                      increased N2O production during rewetting more than with
                      additions of NO3− and NH4+ in all soil samples. The 15N
                      site preference values of N2O produced after rewetting were
                      close to 0‰, indicating a denitrification‐related
                      production process according to the classical view. However,
                      additional abiotic processes responsible for soil N2O
                      production during rewetting cannot be excluded.},
      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:000443387700016},
      doi          = {10.1111/ejss.12683},
      url          = {https://juser.fz-juelich.de/record/851713},
}