Plant and Soil

, Volume 372, Issue 1–2, pp 93–124

Modelling root–soil interactions using three–dimensional models of root growth, architecture and function

  • Vanessa M. Dunbabin
  • Johannes A. Postma
  • Andrea Schnepf
  • Loïc Pagès
  • Mathieu Javaux
  • Lianhai Wu
  • Daniel Leitner
  • Ying L. Chen
  • Zed Rengel
  • Art J. Diggle
Regular Article

Abstract

Background

Three–dimensional root architectural models emerged in the late 1980s, providing an opportunity to conceptualise and investigate that all important part of plants that is typically hidden and difficult to measure and study. These models have progressed from representing pre–defined root architectural arrangements, to simulating root growth in response to heterogeneous soil environments. This was done through incorporating soil properties and more complete descriptions of plant function, moving into the realm of functional-structural plant modelling. Modelling studies are often designed to investigate the relationship between root architectural traits and root distribution in soil, and the spatio–temporal variability of resource supply. Modelling root systems presents an opportunity to investigate functional tradeoffs between foraging strategies (i.e. shallow vs deep rooting) for contrasting resources (immobile versus mobile resources), and their dependence on soil type, rainfall and other environmental conditions. The complexity of the interactions between root traits and environment emphasises the need for models in which traits and environmental conditions can be independently manipulated, unlike in the real world.

Scope

We provide an overview of the development of three–dimensional root architectural models from their origins, to their place today in the world of functional–structural plant modelling. The uses and capability of root architectural models to represent virtual plants and soil environment are addressed. We compare features of six current models, RootTyp, SimRoot, ROOTMAP, SPACSYS, R-SWMS, and RootBox, and discuss the future development of functional-structural root architectural modelling.

Conclusion

Functional-structural root architectural models are being used to investigate numerous root–soil interactions, over a range of spatial scales. They are not only providing insights into the relationships between architecture, morphology and functional efficiency, but are also developing into tools that aid in the design of agricultural management schemes and in the selection of root traits for improving plant performance in specific environments.

Keywords

Functional-structural modelling Heterogeneous soil environments Nutrient acquisition Root architecture Root growth Root modelling Simulation Three dimensions (3D) Water uptake 

Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • Vanessa M. Dunbabin
    • 1
  • Johannes A. Postma
    • 2
  • Andrea Schnepf
    • 3
  • Loïc Pagès
    • 4
  • Mathieu Javaux
    • 5
  • Lianhai Wu
    • 6
  • Daniel Leitner
    • 7
  • Ying L. Chen
    • 8
    • 9
  • Zed Rengel
    • 8
    • 9
  • Art J. Diggle
    • 10
  1. 1.Tasmanian Institute of AgricultureThe University of TasmaniaHobartAustralia
  2. 2.IBG–2: Plant SciencesForschungszentrum JülichJülichGermany
  3. 3.Institute of Hydraulics and Rural Water Management, Department of Water, Air and EnvironmentBOKU - University of Natural Resources and Life Sciences, ViennaViennaAustria
  4. 4.INRA, UR 1115 PSH, Site AgroparcAvignon cedex 9France
  5. 5.Université catholique de LouvainLouvain-la-NeuveBelgium
  6. 6.Sustainable Soils and Grassland Systems DepartmentRothamsted Research, North WykeOkehamptonUK
  7. 7.Computational Science CenterUniversity of ViennaViennaAustria
  8. 8.Soil Science and Plant Nutrition, School of Earth and EnvironmentThe University of Western AustraliaCrawleyAustralia
  9. 9.The UWA Institute of AgricultureThe University of Western AustraliaCrawleyAustralia
  10. 10.The Department of Agriculture and Food, Western AustraliaBentleyAustralia
  11. 11.Forschungszentrum Jülich GmbHAgrosphere (IBG-3)JülichGermany

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