% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Cai:836128,
      author       = {Cai, Gaochao and Vanderborght, Jan and Couvreur, Valentin
                      and Mboh, Cho Miltin and Vereecken, Harry},
      title        = {{P}arameterization of {R}oot {W}ater {U}ptake {M}odels
                      {C}onsidering {D}ynamic {R}oot {D}istributions and {W}ater
                      {U}ptake {C}ompensation},
      journal      = {Vadose zone journal},
      volume       = {},
      number       = {},
      issn         = {1539-1663},
      address      = {Madison, Wis.},
      publisher    = {SSSA},
      reportid     = {FZJ-2017-05251},
      pages        = {},
      year         = {2017},
      abstract     = {The spatiotemporal distribution of root water uptake (RWU)
                      depends on the dynamics of the root distribution and
                      compensatory uptake from wetter regions in the root zone.
                      This work aimed to parameterize three RWU models with
                      different representations of compensation: the
                      Feddes–Jarvis model that uses an empirical function, the
                      Feddes model without compensation, and the Couvreur model
                      that is based on a physical description of water flow in the
                      soil–root system. These models were implemented in
                      HYDRUS-1D, and soil hydraulic parameters were optimized by
                      inverse modeling using soil water content and potential
                      measurements and observations of root distributions of
                      winter wheat (Triticum aestivum L.) in horizontally
                      installed rhizotubes. Soil moisture was equally well
                      predicted by the three models, and the soil hydraulic
                      parameters optimized by the models with compensation were
                      comparable. The obtained RWU parameters of the
                      Feddes–Jarvis model were consistent with data reported in
                      the literature, although the pressure heads h3l and h3h for
                      lower and higher transpirations rates, respectively, could
                      not be uniquely identified. Response surfaces of the
                      objective function showed that the root-related parameters
                      of the Couvreur model could be identified using inverse
                      modeling. Furthermore, these parameters were consistent with
                      combined root architectural and hydraulic observations from
                      the literature. The Feddes–Jarvis and Couvreur models
                      simulated similar root-system-scale stress functions that
                      link total RWU to the effective root zone water potential,
                      suggesting that parameters may be transferable between the
                      two models. Simulated RWU profiles differed due to different
                      water redistribution by the root system, but the
                      measurements were not sufficiently precise to observe this
                      redistribution},
      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:000425218400003},
      doi          = {10.2136/vzj2016.12.0125},
      url          = {https://juser.fz-juelich.de/record/836128},
}