Parameterizing the soil - water - plant root system

R.A. Feddes, P.A.C. Raats

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review


Root water uptake is described from the local scale, to the field scale and to the regional and global scales. The local macroscopic model can be incorporated in Soil-Plant-Atmosphere Continuum (SPAC) numerical models, like the SWAP, HYSWASOR, HYDRUS, ENVIRO-GRO and FUSSIM models. These SPAC models in turn can be used for upscaling, first to the field scale and from there to the regional and global scales. As Global Climate Models (GCMs) show a strong sensitivity to continental evaporation, closer root water-uptake modeling might improve soil vegetation control instead of uncontrolled continental evaporation
Original languageEnglish
Title of host publicationUnsaturated-zone modeling; Progress, challenges and applications
EditorsR.A. Feddes, G.H. de Rooij, J.C. van Dam
Place of PublicationDordrecht
Number of pages364
Publication statusPublished - 2004

Publication series

NameWageningen UR Frontis Series
PublisherKluwer Academic Publishers


  • soil water
  • plant water relations
  • climatic change
  • models

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