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@ARTICLE{Kuang:904472,
      author       = {Kuang, Xingxing and Jiao, Jiu Jimmy and Shan, Jipeng and
                      Yang, Zhenlei},
      title        = {{A} modification to the van {G}enuchten model for improved
                      prediction of relative hydraulic conductivity of unsaturated
                      soils},
      journal      = {European journal of soil science},
      volume       = {72},
      number       = {3},
      issn         = {0022-4588},
      address      = {Oxford [u.a.]},
      publisher    = {Wiley-Blackwell},
      reportid     = {FZJ-2021-06042},
      pages        = {1354 - 1372},
      year         = {2021},
      note         = {Kein Postprint vorhanden},
      abstract     = {Modelling of flow and transport in unsaturated soils
                      requires information on two fundamental hydraulic
                      properties: the soil water retention curve and relative
                      hydraulic conductivity. A soil's relative hydraulic
                      conductivity is frequently predicted from the soil water
                      retention curve. The most widely used combination is the van
                      Genuchten model for the soil water retention curve and the
                      Mualem model for relative hydraulic conductivity (VGM).
                      Previous studies show that the VGM model underestimates
                      measured relative hydraulic conductivity for soils with fine
                      textures; a sharp drop in relative hydraulic conductivity
                      can be seen near saturation. A new modification of the van
                      Genuchten soil water retention model is proposed with the
                      aim of improving the agreement between predicted and
                      measured relative hydraulic conductivity. The Brooks and
                      Corey-Burdine model is used to predict relative hydraulic
                      conductivity from the modified van Genuchten soil water
                      retention curve (MVG-BCB). The modified model assumes
                      independent m and n in the van Genuchten model but with
                      constraints n > 2 and 0 < m < 1. The MVG-BCB
                      model is evaluated by comparing calculated and measured data
                      for 59 soils that have widely varying soil textures, ranging
                      from sandstone to clay. The MVG-BCB model improves the
                      agreement between calculated and measured data for both the
                      soil water retention curve and relative hydraulic
                      conductivity. The MVG-BCB model is closer to measured
                      relative hydraulic conductivity data for most of the
                      selected soils and the sharp drop near saturation is
                      eliminated. Both the modified soil water retention curve and
                      relative hydraulic conductivity functions are smooth curves
                      and can easily be incorporated into vadose zone flow and
                      transport modellings.},
      cin          = {IBG-3},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {2173 - Agro-biogeosystems: controls, feedbacks and impact
                      (POF4-217)},
      pid          = {G:(DE-HGF)POF4-2173},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000580992700001},
      doi          = {10.1111/ejss.13034},
      url          = {https://juser.fz-juelich.de/record/904472},
}