Simulation and Visualisation of Functional Landscapes: Effects of the Water Resource Competition between Plants

Vincent Le Chevalier 1, 2, * Marc Jaeger 3 Xing Mei 4 Paul-Henry Cournède 1, 2
* Auteur correspondant
2 DIGIPLANTE - Modélisation de la croissance et de l'architecture des plantes
MAS - Mathématiques Appliquées aux Systèmes - EA 4037, Inria Saclay - Ile de France, Ecole Centrale Paris, Centre de coopération internationale en recherche agronomique pour le développement [CIRAD] : UMR
Abstract : Vegetation ecosystem simulation and visualisation are challenging topics involving multidisciplinary aspects. In this paper, we present a new generic frame for the simulation of natural phenomena through manageable and interacting models. It focuses on the functional growth of large vegetal ecosystems, showing coherence for scales ranging from the individual plant to communities and with a particular attention to the effects of water resource competition between plants. The proposed approach is based on a model of plant growth in interaction with the environmental conditions. These are deduced from the climatic data (light, temperature, rainfall) and a model of soil hydrological budget. A set of layers is used to store the water resources and to build the interfaces between the environmental data and landscape components: temperature, rain, light, altitude, lakes, plant positions, biomass, cycles, etc. At the plant level, the simulation is performed for each individual by a structural-functional growth model, interacting with the plant's environment. Temperature is spatialised, changing according to altitude, and thus locally controls plant growth speed. The competition for water is based on a soil hydrological model taking into account rainfalls, water runoff, absorption, diffusion, percolation in soil. So far, the incoming light radiation is not studied in detail and is supposed constant. However, competition for light between plants is directly taken into account in the plant growth model. In our implementation, we propose a simple architecture for such a simulator and a simulation scheme to synchronise the water resource updating (on a temporal basis) and the plant growth cycles (determined by the sum of daily temperatures). The visualisation techniques are based on sets of layers, allowing both morphological and functional landscape views and providing interesting tools for ecosystem management. The implementation of the proposed frame leads to encouraging results that are presented and illustrate simple academic cases.
Type de document :
Article dans une revue
JCST, Springer, 2007, 22 (6), pp.835-845
Liste complète des métadonnées

Littérature citée [4 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/inria-00547631
Contributeur : Paul-Henry Cournède <>
Soumis le : jeudi 16 décembre 2010 - 23:17:21
Dernière modification le : jeudi 11 janvier 2018 - 06:21:19
Document(s) archivé(s) le : jeudi 17 mars 2011 - 03:01:14

Fichier

JCST2007_22_6_VFinale_auteur.p...
Fichiers produits par l'(les) auteur(s)

Identifiants

  • HAL Id : inria-00547631, version 1

Citation

Vincent Le Chevalier, Marc Jaeger, Xing Mei, Paul-Henry Cournède. Simulation and Visualisation of Functional Landscapes: Effects of the Water Resource Competition between Plants. JCST, Springer, 2007, 22 (6), pp.835-845. 〈inria-00547631〉

Partager

Métriques

Consultations de la notice

601

Téléchargements de fichiers

496