Modelling notation showing the potential ways biomass i I F , intermediates i I ID , byproducts i I B and biofuel i I P flow through the three types of node in the biofuel supply chain: harvesting sites j , pre-processing depots k and biorefineries l . Solid lines represent shipments F i,*,*, q, t , dash dotted lines represent material consumption and dotted lines represent material production. Y i, f, t represents the biomass yield as a result of land management (details in Methods) for fields within a harvesting site. H i, j, t is the actual amount harvested and {C}l,m,tSEQ is the amount of CO 2 sequestered with CCS technology.
