Acknowledgments, Preface Part I Ch. 1. Modelling the relationship between agriculture and the environment using bio-economic models: some conceptual issues; G. Flichman, K. Louhichi and J.M. Boisson Ch. 2. Bio physical models as detailed engineering production functions; J.M. Boussard Ch. 3. Dynamic optimisation problems: Different resolution methods regarding agriculture and natural resource economics; M. Blanco-Fonseca, G. Flichman and H. Belhouchette Ch. 4. Biophysical models for cropping system simulation; M. Donatelli, R. Confalonieri Part II Ch. 5. Incorporating yield information from a biogeochemical model into an agricultural production model to infer adoption of a new bioenergy crop; P. Merel, F. Yi, S. Bucaram, J. Lee, R. Howitt and J. Six Ch. 6. Agri-environmental nitrogen indicators for EU27; A. Leip, F. Weiss and W. Britz Ch. 7. Modelling Nitrogen balance for a regional scale livestock-pasture system as a discussion support tool; U.B. Nidumolu, M. Lubbers, V. Alary, P. Lecomte, and H. van Keulen Ch. 8. Using a Bio-economic Model to Assess the Cost-effectiveness of Measures against Nitrogen Pollution; I. Mouratiadou, D. Tarsitano, C. Topp, D. Moran and G. Russell Ch. 9. On-farm weather risk management in suckler cow farms: A recursive discrete stochastic programming approach; C. Mosnier, J. Agabriel, M. Lherm and A. Reynaud Ch. 10. Integrated bio-economic farm modeling for biodiversity assessment at landscape level; M. Schonhart, T. Schauppenlehner and Erwin Schmid Conclusions.