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@ARTICLE{Li:865504,
      author       = {Li, Dazhi and Schrön, Martin and Köhli, Markus and
                      Bogena, Heye and Weimar, Jannis and Jiménez Bello, Miguel
                      Angel and Han, Xujun and Martínez Gimeno, Maria Amparo and
                      Zacharias, Steffen and Vereecken, Harry and
                      Hendricks-Franssen, Harrie-Jan},
      title        = {{C}an {D}rip {I}rrigation be {S}cheduled with
                      {C}osmic-{R}ay {N}eutron {S}ensing?},
      journal      = {Vadose zone journal},
      volume       = {18},
      number       = {1},
      issn         = {1539-1663},
      address      = {Alexandria, Va.},
      publisher    = {GeoScienceWorld},
      reportid     = {FZJ-2019-04907},
      pages        = {},
      year         = {2019},
      abstract     = {Irrigation is essential for maintaining food production in
                      water-scarce regions. The irrigation need depends on the
                      water content of the soil, which we measured with the novel
                      technique of cosmic-ray neutron sensing (CRNS). The
                      potential of the CRNS technique for drip irrigation
                      scheduling was explored in this study for the Picassent site
                      near Valencia, Spain. To support the experimental evidence,
                      the neutron transport simulation URANOS was used to simulate
                      the effect of drip irrigation on the neutron counts. The
                      overall soil water content (SWC) in the CRNS footprint was
                      characterized with a root mean square error <0.03 cm3/cm3,
                      but the experimental dataset indicated methodological
                      limitations to detect drip water input. Both experimental
                      data and simulation results suggest that the large-area
                      neutron response to drip irrigation is insignificant in our
                      specific case using a standard CRNS probe. Because of the
                      small area of irrigated patches and short irrigation time,
                      the limited SWC changes due to drip irrigation were not
                      visible from the measured neutron intensity changes. Our
                      study shows that CRNS modeling can be used to assess the
                      suitability of the CRNS technique for certain applications.
                      While the standard CRNS probe was not able to detect
                      small-scale drip irrigation patterns, the method might be
                      applicable for larger irrigated areas, in drier regions, and
                      for longer and more intense irrigation periods. Since
                      statistical noise is the main limitation of the CRNS
                      measurement, the capability of the instrument could be
                      improved in future studies by larger and more efficient
                      neutron detectors.},
      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:000488985900001},
      doi          = {10.2136/vzj2019.05.0053},
      url          = {https://juser.fz-juelich.de/record/865504},
}