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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Description/Abstract

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.

Item Type: Article
ISSNs: 1126-3504 (print)
1724-5575 (electronic)
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
ePrint ID: 184643
Date Deposited: 09 May 2011 08:36
Last Modified: 27 Mar 2014 19:39
URI: http://eprints.soton.ac.uk/id/eprint/184643

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