% 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{Wang:845180,
      author       = {Wang, Jihuan and Bogena, Heye and Vereecken, Harry and
                      Brüggemann, Nicolas},
      title        = {{C}haracterizing {R}edox {P}otential {E}ffects on
                      {G}reenhouse {G}as {E}missions {I}nduced by {W}ater-{L}evel
                      {C}hanges},
      journal      = {Vadose zone journal},
      volume       = {17},
      number       = {1},
      issn         = {1539-1663},
      address      = {Madison, Wis.},
      publisher    = {SSSA},
      reportid     = {FZJ-2018-02484},
      pages        = {0 -},
      year         = {2018},
      abstract     = {Soil greenhouse gas (GHG) emissions contribute to global
                      warming. To support mitigation measures against global
                      warming, it is important to understand the controlling
                      processes of GHG emissions. Previous studies focusing mainly
                      on paddy rice fields or wetlands showed a strong
                      relationship between soil redox potential and GHG emission
                      (e.g., N2O). However, the interpretation of redox potentials
                      for the understanding of the controlling factors of GHG
                      emission is limited due to the low number of continuous
                      redox measurements in most ecosystems. Recent sensor
                      developments open the possibility for the long-term
                      monitoring of field-scale soil redox potential changes. We
                      performed laboratory lysimeter experiments to investigate
                      how changes in the redox potential, induced by changes in
                      the water level, affect GHG emissions from agricultural
                      soil. Under our experimental conditions, we found that N2O
                      emissions followed closely the changes in redox potential.
                      The dynamics of redox potential were induced by changing the
                      water-table depth in a laboratory lysimeter. Before
                      fertilization during saturated conditions, we found a clear
                      negative correlation between redox potentials and N2O
                      emission rates. After switching from saturated to
                      unsaturated conditions, N2O emission quickly decreased,
                      indicating denitrification as the main source of N2O. In
                      contrast, the emissions of CO2 increased with increasing
                      soil redox potentials. After fertilization, N2O emission
                      peaked at high redox potential, suggesting nitrification as
                      the main production pathway, which was confirmed by isotope
                      analysis of N2O. We propose that redox potential
                      measurements are a viable method for better understanding of
                      the controlling factors of GHG emissions, for the
                      differentiation between different source processes, and for
                      the improvement of process-based GHG models.},
      cin          = {IBG-3},
      ddc          = {550},
      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:000439704900001},
      doi          = {10.2136/vzj2017.08.0152},
      url          = {https://juser.fz-juelich.de/record/845180},
}