Publications des agents du Cirad

Cirad

Tri-trophic ecosystem oil palm-pests-auxiliaries : II. Sensitivity analysis, parameter identification and control

Qi R., Cournède P.H., De Reffye P.. 2010. In : Li Baoguo (ed.), Jaeger Marc (ed.), Guo Yan (ed.). Plant growth modeling and applications. Proceedings PMA09 : The Third International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications, Beijing, China, 9-13 November 2009. Los Alamitos : IEEE Computer Society, p. 327-333. International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications (PMA09). 3, 2009-11-09/2009-11-13, Pékin (Chine).

A tri-trophic ecosystem model was developed, combining a functional-structural plant growth model GreenLab and a discrete dynamic population model. Two issues of modeling are investigated: (1) analysis of sensitivity of model outputs to model parameters and (2) parameter identification. Results revealed that parameters which contribute greatly to model output can be identified. Two applications of insect pest management techniques are optimized based on the proposed tri-trophic ecosystem model. The optimal results indicate that to protect plants, biological control and pesticides should be applied as early as possible.
Communication de congrès