658bbd26_sts___Natural_Resources_Canada__Term
[Definition] An agroforestry system involving the planting of trees or shrubs with agricultural crops or forest-derived crops that require full sun. As the trees/shrubs grow, the canopy closes, and the level of shade increases, a sun system may become a shade system or another agroforestry system. (See also intercropping.) [French] Système de production à découvert [Term] 
Sun system
Glossary | Forests | Natural Resources Canada
Term