% 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{Rahmati:877228,
      author       = {Rahmati, Mehdi and Groh, Jannis and Graf, Alexander and
                      Pütz, Thomas and Vanderborght, Jan and Vereecken, Harry},
      title        = {{O}n the impact of increasing drought on the relationship
                      between soil water content and evapotranspiration of a
                      grassland},
      journal      = {Vadose zone journal},
      volume       = {19},
      number       = {1},
      issn         = {1539-1663},
      address      = {Alexandria, Va.},
      publisher    = {GeoScienceWorld},
      reportid     = {FZJ-2020-02055},
      pages        = {e20029},
      year         = {2020},
      abstract     = {Weighable lysimeters were used to study the relation
                      between soil water content (SWC) and the actual
                      evapotranspiration (ETa) of grassland under two different
                      climate regimes of Rollesbroich and Selhausen but for an
                      identical soil from Rollesbroich. All components of the
                      water balance were determined from 2012 until 2018. Budyko
                      analysis was used to characterize the hydrological status of
                      the studied sites. Wavelet analysis was also applied to
                      study the power spectrum of ETa,
                      vegetation‐height‐adjusted reference evapotranspiration
                      (ETcrop), and water stress index (WSI) defined as
                      ETa/ETcrop, as well as SWC at three different depths and the
                      coherence between SWC and ETa and WSI. The Budyko analysis
                      showed that 2018 resulted in a shift of both locations
                      towards more water‐limited conditions, although
                      Rollesbroich remained an energy‐limited system. Based on
                      the power spectrum analysis, the annual timescale is the
                      dominant scale for the temporal variability of ETa, ETcrop,
                      and SWC. The results also showed that increasing dryness at
                      the energy‐limited site led to more temporal variability
                      of SWC at all depths at the annual timescale. Wavelet
                      coherence analysis showed a reduction of the phase shift
                      between SWC and ETa at an annual scale caused by the
                      increase in dryness during the measurement period. We found
                      that phase shifts between SWC and ETa and SWC and WSI were
                      stronger at the water‐limited site than at the
                      energy‐limited site. The wavelet coherence analysis also
                      showed that from 2014 to 2018, the control of ETa and WSI on
                      SWC increased due to higher dryness of soil.},
      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:000618773300029},
      doi          = {10.1002/vzj2.20029},
      url          = {https://juser.fz-juelich.de/record/877228},
}