Comparison of nutrient uptake between true 3-dimensional simulation and an averaged root system model
Leitner, D., Schnepf, A., Klepsch, S. and Roose, T. (2010) Comparison of nutrient uptake between true 3-dimensional simulation and an averaged root system model. Plant Biosystems, 144, (2), 443-447. (doi:10.1080/11263501003726334).
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We present a new numerical approach describing nutrient uptake in three dimensions. Dynamic boundary conditions are considered at the individual root surfaces within a root system. As an example, we compare the three-dimensional simulation results of phosphate uptake by a young maize root system to the corresponding effective solution. We show that the two solutions are similar concerning phosphate uptake and the size of the depletion zones. The presented approach makes it possible to verify simplifications that are made in the development of effective models. Furthermore, it is possible to extend existing models by including spatial heterogeneities that will increase our understanding of rhizosphere processes.
|Keywords:||mathematical modelling, phosphate depletion, nutrient uptake, comsol multiphysics, three-dimensional simulation|
|Subjects:||Q Science > QA Mathematics|
|Divisions:||University Structure - Pre August 2011 > School of Engineering Sciences > Bioengineering Sciences
|Date Deposited:||09 May 2011 08:36|
|Last Modified:||27 Mar 2014 19:39|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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