Annals of Botany 81: 213-223, 1998
© 1998 Annals of Botany Company
Modelling of the Hydraulic Architecture of Root Systems: An Integrated Approach to Water Absorption—Model Description
INRA, Unité de Science du Sol, Domaine Saint Paul, Site Agroparc, 84914, Avignon, Cedex 9, France INRA, Unité de Recherche en Ecophysiologie et Horticulture, , Domaine Saint Paul, Site Agroparc, 84914, Avignon, Cedex 9, France
July 14, 1997 ; August 25, 1997 . September 21, 1997 .
A numerical model simulating water uptake by root systems is presented. This model can combine the locally measured root hydraulic conductances with data on the root system architecture to give a detailed description of water absorption, from the single root level to the entire root system. This is achieved by coupling a three-dimensional root system architecture model with laws describing water flow in roots. In addition to water absorption studies, the model has been developed so that it can be included in a soil water transfer simulator in order to analyse soil–plant interactions for water uptake. The use of the model in describing water absorption is illustrated for a specific case where the hydraulic conductances are considered uniform in the whole root system. In this way, analytical results of Landsberg and Fowkes (Annals of Botany42: 493–508, 1978) are extended from the single root to the root system level. The influence of the type of root system architecture, axial conductance between crowns of maize nodal roots, transpiration in the course of the day, and non-homogeneous soil water potential on fluxes and water potentials in the root system are examined. The dynamics of the total conductance of the maize root system with plant growth is also shown for this case of uniform conductance in the root system. Cases which consider other distributions of the conductance in the root system are presented in an accompanying paper.Copyright 1998 Annals of Botany Company
Water; uptake; root system; model; architecture; hydraulic conductance;Zea MaysL.
CiteULike 
Connotea 
Del.icio.us What's this?
This article has been cited by other articles:
|
|
 |
|
  E. Segal, T. Kushnir, Y. Mualem, and U. Shani Water Uptake and Hydraulics of the Root Hair Rhizosphere Vadose Zone J., August 13, 2008; 7(3): 1027 - 1034. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. Javaux, T. Schroder, J. Vanderborght, and H. Vereecken Use of a Three-Dimensional Detailed Modeling Approach for Predicting Root Water Uptake Vadose Zone J., August 13, 2008; 7(3): 1079 - 1088. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. Schroder, M. Javaux, J. Vanderborght, B. Korfgen, and H. Vereecken Effect of Local Soil Hydraulic Conductivity Drop Using a Three-Dimensional Root Water Uptake Model Vadose Zone J., August 13, 2008; 7(3): 1089 - 1098. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 L. G. Tumlinson, H. Liu, W. K. Silk, and J. W. Hopmans Thermal Neutron Computed Tomography of Soil Water and Plant Roots Soil Sci. Soc. Am. J., August 1, 2008; 72(5): 1234 - 1242. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. Pierret, C. Doussan, Y. Capowiez, F. Bastardie, and L. Pages Root Functional Architecture: A Framework for Modeling the Interplay between Roots and Soil Vadose Zone J., May 17, 2007; 6(2): 269 - 281. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M Genard, N Bertin, C Borel, P Bussieres, H Gautier, R Habib, M Lechaudel, A Lecomte, F Lescourret, P Lobit, et al. Towards a virtual fruit focusing on quality: modelling features and potential uses J. Exp. Bot., March 1, 2007; 58(5): 917 - 928. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. Tsutsumi, K. Kosugi, and T. Mizuyama Three-Dimensional Modeling of Hydrotropism Effects on Plant Root Architecture along a Hillslope Vadose Zone J., August 1, 2004; 3(3): 1017 - 1030. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. Tsutsumi, K. Kosugi, and T. Mizuyama Root-System Development and Water-Extraction Model Considering Hydrotropism Soil Sci. Soc. Am. J., March 1, 2003; 67(2): 387 - 401. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. Génard, S. Fishman, G. Vercambre, J.-G. Huguet, C. Bussi, J. Besset, and R. Habib A Biophysical Analysis of Stem and Root Diameter Variations in Woody Plants Plant Physiology, May 1, 2001; 126(1): 188 - 202. [Abstract] [Full Text]
|
|
|
|
|
|
P. Martre, G. B. North, and P. S. Nobel Hydraulic Conductance and Mercury-Sensitive Water Transport for Roots of Opuntia acanthocarpa in Relation to Soil Drying and Rewetting Plant Physiology, May 1, 2001; 126(1): 352 - 362. [Abstract] [Full Text]
|
|