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@ARTICLE{HaberPohlmeier:840435,
      author       = {Haber-Pohlmeier, Sabine and Vanderborght, J. and Pohlmeier,
                      Andreas},
      title        = {{Q}uantitative mapping of solute accumulation in a
                      soil-root system by magnetic resonance imaging},
      journal      = {Water resources research},
      volume       = {53},
      number       = {8},
      issn         = {0043-1397},
      address      = {[New York]},
      publisher    = {Wiley},
      reportid     = {FZJ-2017-07952},
      pages        = {7469 - 7480},
      year         = {2017},
      abstract     = {Differential uptake of water and solutes by plant roots
                      generates heterogeneous concentration distributions in
                      soils. Noninvasive observations of root system architecture
                      and concentration patterns therefore provide information
                      about root water and solute uptake. We present the
                      application of magnetic resonance imaging (MRI) to image and
                      monitor root architecture and the distribution of a tracer,
                      GdDTPA2− (Gadolinium-diethylenetriaminepentacetate)
                      noninvasively during an infiltration experiment in a soil
                      column planted with white lupin. We show that inversion
                      recovery preparation within the MRI imaging sequence can
                      quantitatively map concentrations of a tracer in a complex
                      root-soil system. Instead of a simple T1 weighting, the
                      procedure is extended by a wide range of inversion times to
                      precisely map T1 and subsequently to cover a much broader
                      concentration range of the solute. The derived
                      concentrations patterns were consistent with mass balances
                      and showed that the GdDTPA2− tracer represents a solute
                      that is excluded by roots. Monitoring and imaging the
                      accumulation of the tracer in the root zone therefore offers
                      the potential to determine where and by which roots water is
                      taken up.},
      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:000411202000059},
      doi          = {10.1002/2017WR020832},
      url          = {https://juser.fz-juelich.de/record/840435},
}