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@ARTICLE{Wendland:60016,
      author       = {Wendland, F. and Kunkel, R. and Gömann, H. and Kreins, P.},
      title        = {{W}ater fluxes and diffuse nitrate pollution at the river
                      basin scale: {I}nterfaces for the coupling of agroeconomical
                      models with hydrological approaches},
      journal      = {Water science and technology},
      volume       = {55},
      issn         = {0273-1223},
      address      = {London},
      publisher    = {IWA Publishing},
      reportid     = {PreJuSER-60016},
      pages        = {133 - 142},
      year         = {2007},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {An integrated model system has been developed to estimate
                      the impact of nitrogen reduction measures on the nitrogen
                      load in groundwater and in river catchment areas. The focus
                      lies on an area-wide, regionally differentiated, consistent
                      link-up between the indicator "nitrogen balance surplus" and
                      nitrogen charges into surface waters. As a starting point of
                      the analysis actual nitrogen surpluses in the soil were
                      quantified using the agro-economic RAUMIS-model, which
                      considers the most important N-inputs to the soil and
                      N-removals from the soil through crop harvest. The most
                      important pathways for diffuse nitrogen inputs into river
                      systems are modelled with the water balance model GROWA.
                      Additionally, the time-dependent nitrogen degradation along
                      the nitrogen pathways in soil and groundwater are modelled
                      using the WEKU-model. The two selected river basins in
                      Germany cover a variety of landscape units with different
                      hydrological, hydrogeological and socio-economic
                      characteristics. The results indicate a wide range of annual
                      nitrogen surpluses for the rural areas between than 10 kg N
                      ha(-1).a(-1) and 200 kg N ha(-1).a(-1) or more, depending on
                      the type and intensity of farming. The level of nitrogen
                      inputs into the surface waters is reduced because of
                      degradation processes during transport in soil and
                      groundwater. Policy impact analyses for a nitrogen tax and a
                      limitation of the livestock density stress the importance of
                      regionally adjusted measures.},
      keywords     = {J (WoSType)},
      cin          = {ICG-4},
      ddc          = {690},
      cid          = {I:(DE-Juel1)VDB793},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Engineering, Environmental / Environmental Sciences / Water
                      Resources},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000245786100018},
      doi          = {10.2166/wst.2007.081},
      url          = {https://juser.fz-juelich.de/record/60016},
}