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Schnepf, A.* ; Black, C.K.* ; Couvreur, V.* ; Delory, B.M.* ; Doussan, C.* ; Koch, A.* ; Koch, T.* ; Javaux, M.* ; Landl, M.* ; Leitner, D.* ; Lobet, G.* ; Mai, T.H.* ; Meunier, F.* ; Petrich, L.* ; Postma, J.A.* ; Priesack, E. ; Schmidt, V.* ; Vanderborght, J.* ; Vereecken, H.* ; Weber, M.*

Call for participation: Collaborative benchmarking of functional-structural root architecture models. The case of root water uptake.

Front. Plant Sci. 11:316 (2020)
Publ. Version/Full Text DOI PMC
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Three-dimensional models of root growth, architecture and function are becoming important tools that aid the design of agricultural management schemes and the selection of beneficial root traits. However, while benchmarking is common in many disciplines that use numerical models, such as natural and engineering sciences, functional-structural root architecture models have never been systematically compared. The following reasons might induce disagreement between the simulation results of different models: different representation of root growth, sink term of root water and solute uptake and representation of the rhizosphere. Presently, the extent of discrepancies is unknown, and a framework for quantitatively comparing functional-structural root architecture models is required. We propose, in a first step, to define benchmarking scenarios that test individual components of complex models: root architecture, water flow in soil and water flow in roots. While the latter two will focus mainly on comparing numerical aspects, the root architectural models have to be compared at a conceptual level as they generally differ in process representation. Therefore, defining common inputs that allow recreating reference root systems in all models will be a key challenge. In a second step, benchmarking scenarios for the coupled problems are defined. We expect that the results of step 1 will enable us to better interpret differences found in step 2. This benchmarking will result in a better understanding of the different models and contribute toward improving them. Improved models will allow us to simulate various scenarios with greater confidence and avoid bugs, numerical errors or conceptual misunderstandings. This work will set a standard for future model development.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Functional-structural Root Architecture Models ; Model Comparison ; Benchmark ; Root Water Uptake ; Call For Participation; Hydraulic Architecture; System; Soil; Transport; Flow; Conductivity; Rhizosphere; Calibration; Continuum; Explicit
Language english
Publication Year 2020
HGF-reported in Year 2020
ISSN (print) / ISBN 1664-462X
e-ISSN 1664-462X
Journal Frontiers in Plant Science
Quellenangaben Volume: 11, Issue: , Pages: , Article Number: 316 Supplement: ,
Publisher Frontiers
Publishing Place Avenue Du Tribunal Federal 34, Lausanne, Ch-1015, Switzerland
Reviewing status Peer reviewed
Institute(s) Research Unit Environmental Simulation (EUS)
POF-Topic(s) 30202 - Environmental Health
Research field(s) Environmental Sciences
PSP Element(s) G-504912-001
DOI 10.3389/fpls.2020.00316
WOS ID WOS:000526711800001
Scopus ID 85083330900
PubMed ID 32296451
Erfassungsdatum 2020-05-08
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