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Comparison of nutrient uptake between true 3-dimensional simulation and an averaged root system model

Comparison of nutrient uptake between true 3-dimensional simulation and an averaged root system model
Comparison of nutrient uptake between true 3-dimensional simulation and an averaged root system model
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.
mathematical modelling, phosphate depletion, nutrient uptake, comsol multiphysics, three-dimensional simulation
1126-3504
443-447
Leitner, D.
314b2855-ce9a-43e2-b9d9-66a4d5a0bf6d
Schnepf, A.
6792762b-b59d-4e2d-8773-54eebfb2fbf7
Klepsch, S.
25b54565-0c3a-42b1-904f-3f8977c9a9db
Roose, T.
3581ab5b-71e1-4897-8d88-59f13f3bccfe
Leitner, D.
314b2855-ce9a-43e2-b9d9-66a4d5a0bf6d
Schnepf, A.
6792762b-b59d-4e2d-8773-54eebfb2fbf7
Klepsch, S.
25b54565-0c3a-42b1-904f-3f8977c9a9db
Roose, T.
3581ab5b-71e1-4897-8d88-59f13f3bccfe

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).

Record type: Article

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.

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More information

Published date: 9 May 2010
Keywords: mathematical modelling, phosphate depletion, nutrient uptake, comsol multiphysics, three-dimensional simulation

Identifiers

Local EPrints ID: 184643
URI: http://eprints.soton.ac.uk/id/eprint/184643
ISSN: 1126-3504
PURE UUID: 7ceec1b2-488e-4fff-be65-6a086ae9717c
ORCID for T. Roose: ORCID iD orcid.org/0000-0001-8710-1063

Catalogue record

Date deposited: 09 May 2011 08:36
Last modified: 15 Mar 2024 03:31

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Contributors

Author: D. Leitner
Author: A. Schnepf
Author: S. Klepsch
Author: T. Roose ORCID iD

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