FFSM++
French Forest Sector Model
...An (inventory-based) forest dynamic model is hence coupled with a (partial equilibrium) market module and a (micro-based) management one in a national level forest sector model for France (FFSM++).
The model is fully open source (GPL3) with the sole exception that if you publish some document based on a modified version of FFSM++ you need to publish also the modifications you made.