E-mail: {vincent.le-chevalier}@ecp.fr; Vincent Le Chevalier graduated from the Ecole Centrale Paris in 2006, major in applied mathematics and computer science. He is currently a Ph.D. candidate in applied mathematics at Ecole Centrale Paris, working on landscape simulation and visualisation inside the DigiPlante Team. marcjaeg@gmail.com; Marc Jaeger is a computer graphics specialist in natural phenomena. His Ph.D. degree (University Louis Pasteur Strasbourg) was hold on plant growth simulation and visualisation at CIRAD. He joined this unit in 1989, developing rendering and simulation algorithms (AMAP products). End 1998, he entered Scientific Direction of CIRAD, as the research co-ordinator for Computer Sciences and Applied Mathematics. Sent to China end 2001, French director of the Sino French Laboratory of Informatics, Automation and Applied Mathematics (LIAMA, in Beijing), his research work is focused on plant simulation and visualisation at crop and landscape levels. Back to France in 2006, he still contributes to the functional and structural plant model GreenLab project, within INRIA's DigiPlante Team, in partnership with LIAMA, CIRAD and Ecole Centrale of Paris. xmei@nlpr.ia.ac.cn Xing Mei received the B.S. degree in electronic engineering from University of Science and Technology of China in 2003. He is currently a Ph.D. candidate in Sino-French Laboratory LIAMA at Institute of Automation, Chinese Academy of Sciences. His research interests include physicallybased simulation and real-time rendering. E-mail: { paul-henry.cournede}@ecp.fr Paul-Henry Cournède is an associate professor in mathematics from the Ecole Centrale Paris, where he graduated (Ingènieur ECP 1997, Ph.D. degree 2001). In the joint team DigiPlante, his main research areas are parametric estimation, optimization, stochastic processes and modelling of plant growth at stand scale.