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@ARTICLE{Kasteel:55349,
      author       = {Kasteel, R. and Garnier, P. and Vachier, P. and Coquet, Y.},
      title        = {{D}ye tracer infiltration in the plough layer after straw
                      incorporation},
      journal      = {Geoderma},
      volume       = {137},
      issn         = {0016-7061},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {PreJuSER-55349},
      pages        = {360 - 369},
      year         = {2007},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Straw residues may be accumulated in isolated zones in the
                      plough layer after mouldboard ploughing. This may limit
                      straw decomposition because of limited nitrogen availability
                      depending on the prevalent water flow pathways induced by
                      tillage. In this study, we used the food dye Brilliant Blue
                      FCF (Color Index 42090) to make visible the flow pathways in
                      the plough layer of a loamy soil after incorporation of 10
                      tonne of dry mass ha(-1), and to get a qualitative and
                      quantitative interpretation of the small-scale flow
                      behaviour. Approximately 1.3 L of a 4 g L-1 Brilliant Blue
                      solution was applied at a matric head of -1 cm with an
                      infiltrometer, equipped with a 25 cm-diameter disk.
                      Horizontal cross-sections of 50 x 50 cm were photographed at
                      1.5 to 3.5 cm depth intervals. High-resolution spatial maps
                      of Brilliant Blue concentration were derived from the
                      scanned photographs, using separate calibration
                      relationships between the measured Brilliant Blue
                      concentrations and the color spectra and depth for the soil
                      and the straw. Pronounced lateral dye movement was observed
                      through the soil matrix owing to soil sorptivity. In cases
                      of high sorptivity, the dye barely reached the depth of
                      straw incorporation. Otherwise, enhanced preferential dye
                      transport directed towards the incorporated straw was made
                      visible and the stained water eventually ponded on the
                      plough pan which induced lateral redistribution. Although
                      the straw inclusions contributed to dye transport, they did
                      not retain a substantial part of the applied dye mass, owing
                      to the low density and surface area of straw. However, these
                      inclusions may enhance the fast migration of potential
                      pollutants such as nitrate or pesticides out of the tilled
                      layer where much of the transformation occurs due to
                      biological activity. (c) 2006 Elsevier B.V. All rights
                      reserved.},
      keywords     = {J (WoSType)},
      cin          = {ICG-4},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB793},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Soil Science},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000243842700011},
      doi          = {10.1016/j.geoderma.2006.08.033},
      url          = {https://juser.fz-juelich.de/record/55349},
}