Experimental, numerical and sensitive analysis of nitrogen dynamics in soils irrigated with treated sewage View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2009-11

AUTHORS

Yan Zhu, JinZhong Yang, LiYing Wang

ABSTRACT

An ammonia volatilization submodel and a crop-growth submodel have been set up and incorporated to the 2D nitrogen transport and transformation simulation model Nitrogen-2D. The coupled model Nitrogen-2D considers all the important nitrogen transformation processes such as mineralization, immobilization, denitrification, nitrification, volatilization, root uptake and soil adsorption in the soil. The model was used to simulate the nitrogen dynamics for the experiment in four lysimeters under sewage irrigation. Simulation results show that the model can describe the water content and ammonium nitrogen content distribution well but simulate the change of the nitrate nitrogen poorly. Sensitivity analysis shows that the simulation results are influenced by the soil water characteristic parameters severely, especially by the parameter of n. The model is much less sensitive to N dynamic parameters. More... »

PAGES

3279-3286

References to SciGraph publications

  • 1991-03. Modelling of the nitrogen cycle in farm land areas in NUTRIENT CYCLING IN AGROECOSYSTEMS
  • 1991-03. Nitrate leaching and soil moisture prediction with the LEACHM model in NUTRIENT CYCLING IN AGROECOSYSTEMS
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/s11431-009-0350-7

    DOI

    http://dx.doi.org/10.1007/s11431-009-0350-7

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