Gaëtan Louarn and Lucas Faverjon (INRA)


Model category FSPM, CSM
Plant part Whole_plant
Scale Organs, Whole_plant, Field
Licence upon_request
Operating system NA
Programming language Python
Format of model inputs and outputs Excel files
Species studied Herbaceous-legume-species
Execution environment Console
Modelling environment OpenAlea,L-Py

Scientific article

A generic individual-based model to simulate morphogenesis, C–N acquisition and population dynamics in contrasting forage legumes
Gaëtan Louarn and Lucas Faverjon
Annals of Botany, 2018 View paper

Model description

The legume population generic model was developed to account for herbaceous legume species with contrasting above- and below-ground morphogenetic syndromes and to integrate the responses of plants to light, water and N. Through coupling with a radiative transfer model and a three-dimensional virtual soil, the model allows dynamic resolution of competition for multiple resources at individual plant level within a plant community. The model predicts (1) the ‘reciprocal yield’ law relating average plant mass to density, (2) a self-thinning pattern close to that measured for herbaceous species and (3) consistent changes in the size structure of plant populations with time and pedo-climatic conditions. In addition, plastic changes in the partitioning of dry matter, the N acquisition mode and in the architecture of shoots and roots emerge from the integration of plant responses to their local environment.

Some case studies

Faverjon L, Escobar-Gutiérrez A, Litrico I, et al (2019) A generic individual-based model can predict yield, nitrogen content, and species abundance in experimental grassland communities. Journal of Experimental Botany 70:2491–2504. doi: 10.1093/jxb/ery323