How to represent the integration between crops and animals?
The previous paragraph proposed a simple approach to evaluate the integration between crops and animals. However, depending on the goal, it could be necessary to be more precise.
The integration can be better described by 3 spheres which allow to:
make explicit the different land use and connections between corresponding spaces
show the structure of a wide range of crop-livestock systems by varying the sizes of the spheres and degrees of overlap
represent the interactions between spheres and their consequences on material exchanges and delivery of ecosystemic services
