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@ARTICLE{Garr:14525,
      author       = {Garré, S. and Javaux, M. and Vanderborght, J. and Pagès,
                      L. and Vereecken, H.},
      title        = {{T}hree-dimensional electrical resistivity tomography to
                      monitor root zone water dynamics},
      journal      = {Vadose zone journal},
      volume       = {10},
      issn         = {1539-1663},
      address      = {Madison, Wis.},
      publisher    = {SSSA},
      reportid     = {PreJuSER-14525},
      pages        = {412 - 424},
      year         = {2011},
      note         = {The authors would like to thank Dr. Thomas Putz and Werner
                      Mittelstaedt for the excavation of the lysimeter, as well as
                      Ansgar Weuthen, Normen Hermes, Ferdinand Engels, and Jurgen
                      Holtkemeier for the technical design and support. This
                      project was financed by the Helmholtz virtual institute
                      "Inverse Modelling of Terrestrial Systems" INVEST.},
      abstract     = {Knowledge of soil moisture dynamics and its spatial
                      variability is essential to improve our understanding of
                      root water uptake and soil moisture redistribution at the
                      local scale and the field scale. We investigated the
                      potential and limitations of electrical resistivity
                      tomography (ERT) to measure three-dimensional soil moisture
                      changes and variability in a large, undisturbed, cropped
                      soil column and examined the interactions between soil and
                      root system. Our analysis sustained the value of ERT as a
                      tool to monitor and quantify water contents and water
                      content changes in the soil, as long as the root biomass
                      does not influence the observed resistivity. This is shown
                      using a global water mass balance and a local validation
                      using time domain reflectometry (TDR) probes. The observed
                      soil moisture variability was rather high compared to values
                      reported in the literature for bare soil. The measured water
                      depletion rate, being the result of combined effects of root
                      water uptake and soil water redistribution, was compared
                      with the evaporative demand and root length densities. We
                      observed a gradual downward movement of the maximum water
                      depletion rate combined with periods of redistribution when
                      there was less transpiration. Finally, the maximum root
                      length density was observed at -70 cm depth, pointing out
                      that root architecture can strongly depend on soil
                      characteristics and states.},
      keywords     = {J (WoSType)},
      cin          = {IBG-3},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Environmental Sciences / Soil Science / Water Resources},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000287573300036},
      doi          = {10.2136/vzj2010.0079},
      url          = {https://juser.fz-juelich.de/record/14525},
}