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@ARTICLE{Weihermller:49573,
      author       = {Weihermüller, L. and Kasteel, R. and Vanderborght, J. and
                      Pütz, T. and Vereecken, H.},
      title        = {{S}oil water extraction with a suction cup: {R}esults of
                      numerical simulation},
      journal      = {Vadose zone journal},
      volume       = {4},
      issn         = {1539-1663},
      address      = {Madison, Wis.},
      publisher    = {SSSA},
      reportid     = {PreJuSER-49573},
      pages        = {899 - 907},
      year         = {2005},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Porous cups are widely used to extract soil water for
                      monitoring solute transport. However, it is not yet clear
                      how the suction cup influences the matric potential in the
                      surrounding soil and which part of the soil is sampled. This
                      research was designed to numerically evaluate the activity
                      domain, the extraction domain, and sampling area of a
                      suction cup under constant infiltration. A finite- element
                      model (HYDRUS-2D) was used to simulate the effect of various
                      applied suctions at two infiltration rates on the water
                      status in three soils (clay loam, sandy clay, and sand).
                      Particle tracking was used to track the streamlines that
                      define the sampling area and extraction of the suction cup.
                      In general, the activity domain, the extracdomain, and
                      sampling area of the suction cup depend primarily on the
                      soil hydraulic parameters and the upper boundary, and
                      secondarily on the applied suction. Results showed that the
                      activity domain, the extraction domain, and the sampling
                      area are largest for highest ambient hydraulic
                      conductivities. The activity domain and the sampling area
                      also decrease with increasing infiltration rates. Further,
                      the activity domain of the suction cup depends strongly on
                      the duration of water extraction. Soil heterogeneity seems
                      to play a minor role with respect to the activity domain and
                      sampling area of the cup.},
      keywords     = {J (WoSType)},
      cin          = {ICG-IV},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB50},
      pnm          = {Chemie und Dynamik der Geo-Biosphäre},
      pid          = {G:(DE-Juel1)FUEK257},
      shelfmark    = {Environmental Sciences / Soil Science / Water Resources},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000234472300002},
      doi          = {10.2136/vzj2004.0156},
      url          = {https://juser.fz-juelich.de/record/49573},
}