The flow diagram presenting the results for this supply chain, produced as part of the SOCLE project, offers a complete view of how material circulates through the chain, from supplies to final outlets. It is a Sankey-type representation: the thickness of the arrows is proportional to the quantities (in kilotonnes, kt), making it possible to grasp at a glance the relative weight of each segment.
This diagram aims to represent the supply chain as a whole at the most detailed level possible. Although some data could be mobilised at a finer level of detail than the one shown, it did not make it possible to guarantee complete data all along the chain: such data is therefore shown in aggregated form on the diagram.
The diagram represents all the material flows within each oilseed and protein crop supply chain in France (rapeseed, sunflower, soybean, flax, peas, faba bean, lupin, lentil, chickpea, olive), from supply sources to the various final uses, for the 3 crop years studied in the SOCLE project: 2015/16, 2019/20 and 2023/24 (select the desired crop year in the timeline at the bottom of the diagram).
Supplies include national production from harvests, supplemented by imports, as well as adjustments linked to stocks or on-farm self-consumption. These flows feed the seed collection and marketing circuits. The intermediate market highlights the main processing steps, dominated by crushing. Crushing separates the seeds into oils and meals, while generating a few co-products (hulls, screenings), and the diagram shows the internal circulation between industrial processing, agricultural uses and other intermediate recovery routes. The outlets bring together the various final uses: human food, animal feed, non-food uses (energy, biomaterials, various industries), seeds, exports, as well as losses or stock variations.
The thickness of the flows makes it possible to identify the main recovery routes and the central place of co-products in the overall balance of oilseed and protein crop chains, while keeping a comparable reading structure from one crop to another.
