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@ARTICLE{Vereecken:12039,
      author       = {Vereecken, H. and Weynants, M. and Javaux, M. and
                      Pachepsky, Y. and Schaap, M.G. and van Genuchten, M.Th.},
      title        = {{U}sing {P}edotransfer {F}unctions to {E}stimate the van
                      {G}enuchten-{M}ualem {S}oil {H}ydraulic {P}roperties: {A}
                      {R}eview},
      journal      = {Vadose zone journal},
      volume       = {9},
      issn         = {1539-1663},
      address      = {Madison, Wis.},
      publisher    = {SSSA},
      reportid     = {PreJuSER-12039},
      pages        = {795 - 820},
      year         = {2010},
      note         = {Attila Nemes (Agricultural Research Station, Beltsville,
                      MD), Wim Cornelis (University of Ghent, Belgium), Christine
                      Stumpp (University of California, Riverside), Navin Kumar
                      Twarakavi (University of Alabama at Auburn) and Christen
                      Borgesen (University of Aarhus, Denmark) are gratefully
                      thanked for providing the original data. We thank the
                      Transregional Collaborative Research Centre, TR-32,
                      "Patterns in Soil-Plant-Atmosphere Systems: Monitoring,
                      Modelling and Data Assimilation" for supporting this
                      research.},
      abstract     = {We reviewed the use of the van Genuchten-Mualem (VGM) model
                      to parameterize soil hydraulic properties and for developing
                      pedotransfer functions (PTFs). Analysis of literature data
                      showed that the moisture retention characteristic (MRC)
                      parameterization by setting shape parameters m = 1 - 1/n
                      produced the largest deviations between fitted and measured
                      water contents for pressure head values between 330 (log(10)
                      pressure head [pF] 2.5) and 2500 cm (pF 3.4). The Schaap-van
                      Genuchten model performed best in describing the unsaturated
                      hydraulic conductivity, K. The classical VGM model using
                      fixed parameters produced increasingly higher root mean
                      squared residual, RMSR, values when the soil became drier.
                      The most accurate PTFs for estimating the MRC were obtained
                      when using textural properties, bulk density, soil organic
                      matter, and soil moisture content. The RMSR values for these
                      PTFs approached those of the direct fit, thus suggesting a
                      need to improve both PTFs and the MRC parameterization.
                      Inclusion of the soil water content in the PTFs for K only
                      marginally improved their prediction compared with the PTFs
                      that used only textural properties and bulk density.
                      Including soil organic matter to predict K had more effect
                      on the prediction than including soil moisture. To advance
                      the development of PTFs, we advocate the establishment of
                      databases of soil hydraulic properties that (i) are derived
                      from standardized and harmonized measurement procedures,
                      (ii) contain new predictors such as soil structural
                      properties, and (iii) allow the development of
                      time-dependent PTFs. Successful use of structural properties
                      in PTFs will require parameterizations that account for the
                      effect of structural properties on the soil hydraulic
                      functions.},
      keywords     = {J (WoSType)},
      cin          = {ICG-4 / JARA-ENERGY / JARA-HPC},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB793 / $I:(DE-82)080011_20140620$ /
                      $I:(DE-82)080012_20140620$},
      pnm          = {Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK407},
      shelfmark    = {Environmental Sciences / Soil Science / Water Resources},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000287739800001},
      doi          = {10.2136/vzj2010.0045},
      url          = {https://juser.fz-juelich.de/record/12039},
}