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Table 4 Examples of the calculation of characterization factors for biotic resource use

From: From cumulated energy demand to cumulated raw material demand: the material footprint as a sum parameter in life cycle assessment

Process in Ecoinvent 3.1/2.2 Yield Y in t/ha Moisture content (w) of reference product Moisture content w at harvest Unused extraction factor (UUE) in kg/kg Allocation factor F (as used in Ecoinvent) Material footprint in kg/kg
Barley production, organic (grains)/barley grains organic 4.15 15% 16% 0.237 91.3% to grains 1.947
Barley production, organic (straw)/barley straw organic 2.92 15% 16% 0.237 8.7% to straw 0.264
Grass silage production, organic/grass silage organic 8.10 0% 65% 0.1 100% 3.143
Soybean production, organic/soybeans organic 2.81 11% 16% 0.36 100% 1.441