A functional landscape prototype to simulate water resource competition between plants

Le Chevalier Vincent, Jaeger Marc, Xing Mei, Lesluye Aurelien, Cournède Paul-Henry. 2007. A functional landscape prototype to simulate water resource competition between plants. In : Plant growth modeling and applications. Proceedings PMA06 : The Second International Symposium on plant growth modeling, simulation, visualization and applications, Beijing, China, November 13-17, 2006. Fourcaud Thierry (ed.), Zhang Xiao-Peng (ed.). Institut d'automatique-LIAMA, IEEE. Los Alamitos : IEEE Computer Society, 124-131. ISBN 0-7695-2851-1 International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications (PMA06). 2, Beijing, Chine, 13 Novembre 2006/17 Novembre 2006.

Résumé : Vegetation ecosystem simulation and visualisation are a challenging topic involving multidisciplinary aspects. We present here a generic frame focused on functional plant growth models under environmental resource conditions: the growth model is coupled to the climatic conditions (temperature, rainfalls) and the competition between plants is taken into account, according to soil hydrological budget. A simple architecture and simulation scheme are proposed to synchronise the water cycles updating (daily based) and the plant growth cycles. A voxel space is used to store the water resource, and layers hold the interfaces between the environmental data and landscape components. The prototype simulator is operative on PC and HPCs with in-line and off-line visualisation tools. Despite the rough implementation level of the underlying bio-physical models, we have simulated realistic behavior of a simple vegetation model in heterogeneous environmental conditions, in space and time.

Mots-clés Agrovoc : paysage, imagerie, modélisation environnementale, modèle de simulation, croissance, compétition végétale, cycle hydrologique, plante de culture, ressource en eau, relation plante eau, interactions biologiques

Classification Agris : U10 - Informatique, mathématiques et statistiques
F62 - Physiologie végétale - Croissance et développement
P10 - Ressources en eau et leur gestion

Auteurs et affiliations

• Le Chevalier Vincent, Ecole centrale Paris (FRA)
• Jaeger Marc, CIRAD-AMIS-UMR AMAP (FRA)
• Xing Mei, Institut d'automatique (CHN)
• Lesluye Aurelien, Institut d'automatique (CHN)
• Cournède Paul-Henry, Ecole centrale Paris (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/544917/)

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