Networks of nature reserves are being proposed as a solution when the degree of fragmentation is considered to endanger the long-term persistence of species diversity. Agrienvironmental schemes are supposed to make a positive contribution to these networks. The spatially explicit agent-based model presented in this chapter combines spatial dynamics in land ownership, land use and the importance of agri-environmental schemes in conserving biodiversity by capturing the heterogeneity of individual farms as well as their dynamics over time, in a spatially explicit landscape. The chapter evaluates the effects of two different agrienvironmental policies at landscape level, and shows that agri-environmental schemes with flexible payments based on a spatial landscape configuration can be valuable for agrienvironmental policy development.