DISNIT2, a root zone water and nitrogen management model

J. Feher, M. Th Van Genuchten, G. Kienitz, T. Nemeth, Gy Biczok, G. J. Kovacs

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The heavy use of nitrogen fertilizers is contributing to groundwater quality problems in Hungary. Comprehensive field monitoring and research efforts are currently being carried out to establish environmentally sound agricultural management practices. As part of these efforts a one-dimensional simulation model was developed to evaluate and predict water and nitrogen movement in and below the root zone. The model considers the processes of saturated-unsaturated flow, convective-dispersive solute transport, transpiration, evaporation, snowmelt, plant water and nitrogen uptake, the effect of water stress on water and nitrogen uptake, and several nitrogen transformations such as mineralization, immobilization, nitrification, and denitrification. The model is capable of simulating water and solute transport through the vadose zone over multi-year periods. Two crops (corn and wheat) are currently being considered in the model.

Original languageEnglish
Title of host publicationHydrological Interactions Between Atmosphere, Soil and Vegetation
PublisherPubl by IAHS
Pages197-205
Number of pages9
Edition204
ISBN (Print)0947571132
Publication statusPublished - Jan 1 1991
Event20th General Assembly of the International Union of Geodesy and Geophysics - Vienna, Austria
Duration: Aug 11 1991Aug 24 1991

Publication series

NameIAHS Publication (International Association of Hydrological Sciences)
Number204

Other

Other20th General Assembly of the International Union of Geodesy and Geophysics
CityVienna, Austria
Period8/11/918/24/91

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Feher, J., Van Genuchten, M. T., Kienitz, G., Nemeth, T., Biczok, G., & Kovacs, G. J. (1991). DISNIT2, a root zone water and nitrogen management model. In Hydrological Interactions Between Atmosphere, Soil and Vegetation (204 ed., pp. 197-205). (IAHS Publication (International Association of Hydrological Sciences); No. 204). Publ by IAHS.