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@ARTICLE{Mander:172326,
      author       = {Mander, Ülo and Well, Reinhard and Weymann, Daniel and
                      Soosaar, Kaido and Maddison, Martin and Kanal, Arno and
                      Lõhmus, Krista and Truu, Jaak and Augustin, Jürgen and
                      Tournebize, Julien},
      title        = {{I}sotopologue {R}atios of {N} $_{2}$ {O} and {N} $_{2}$
                      {M}easurements {U}nderpin the {I}mportance of
                      {D}enitrification in {D}ifferently {N}-{L}oaded {R}iparian
                      {A}lder {F}orests},
      journal      = {Environmental science $\&$ technology},
      volume       = {48},
      number       = {20},
      issn         = {0013-936X},
      address      = {Columbus, Ohio},
      publisher    = {American Chemical Society},
      reportid     = {FZJ-2014-05809},
      pages        = {11910 - 11918},
      year         = {2014},
      abstract     = {Known as biogeochemical hotspots in landscapes, riparian
                      buffer zones exhibit considerable potential concerning
                      mitigation of groundwater contaminants such as nitrate, but
                      may in return enhance the risk for indirect N2O emission.
                      Here we aim to assess and to compare two riparian grey alder
                      forests in terms of gaseous N2O and N2 fluxes and dissolved
                      N2O, N2, and NO3- in the near-surface groundwater. We
                      further determine for the first time isotopologue ratios of
                      N2O dissolved in the riparian groundwater in order to
                      support our assumption that it mainly originated from
                      denitrification. The study sites, both situated in Estonia,
                      north-eastern Europe, receive contrasting N loads from
                      adjacent uphill arable land. Whereas N2O emissions were
                      rather small at both sites, average gaseous N2-to-N2O ratios
                      inferred from closed-chamber measurements and He-O
                      laboratory incubations were almost four times smaller for
                      the heavily loaded site. In contrast, groundwater parameters
                      were less variable among sites and between landscape
                      positions. Campaign-based average 15N site preferences of
                      N2O (SP) in riparian groundwater ranged between 11 and 44
                      ‰. Besides the strong prevalence of N2 emission over N2O
                      fluxes and the correlation pattern between isotopologue and
                      water quality data, this comparatively large range
                      highlights the importance of denitrification and N2O
                      reduction in both riparian grey alder stands.},
      cin          = {IBG-3},
      ddc          = {050},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {246 - Modelling and Monitoring Terrestrial Systems: Methods
                      and Technologies (POF2-246) / 255 - Terrestrial Systems:
                      From Observation to Prediction (POF3-255)},
      pid          = {G:(DE-HGF)POF2-246 / G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000343640900021},
      doi          = {10.1021/es501727h},
      url          = {https://juser.fz-juelich.de/record/172326},
}