RhizoDep


Frédéric Rees, Tristan Gérault, Bruno Andrieu, Marion Gauthier & Christophe Pradal (Université Paris-Saclay, INRAE)

Overview

Model category ODE
Plant part Root
Scale Python
Licence CeCILL-C
Operating system Linux, Windows, MacOs
Programming language Python
Format of model inputs and outputs
Species studied Wheat, Any
Execution environment Console
Modelling environment

Scientific article

Deciphering spatiotemporal patterns of rhizodeposition with a functional-structural root model:RhizoDep
Frédéric Rees, Tristan Gérault, Marion Gauthier, Romain Barillot, Céline Richard-Molard, Alexandra Jullien, Claire Chenu, Christophe Pradal, Bruno Andrieu
, 2025 View paper

Model description

RhizoDep is a functional-structural root model aiming to simulate root growth, respiration and rhizodeposition along the whole root system. Root growth is based on a potential growth model adapted from ArchiSimple model, which is regulated by the local balance of carbon in each root segment. This local carbon balance also enables to simulate root respiration, which originates from growth and maintenance, and rhizodeposition, which has been represented as the net exudation of hexose, the secretion of mucilage and the release of cap cells. The model depends on i) the input of carbon allocated from the shoots to the roots, ii) the temperature of the soil, iii) the dynamics of rhizodeposits at the root-soil interface, which is currently simulated by a simple soil degradation function.

Some case studies