System delimitation in agricultural consequential LCA

摘要: Background, aim, and scope When dealing with system delimitation in environmental life cycle assessment (LCA), two methodologies are typically referred to: consequential LCA attributional LCA. The approach uses marginal data avoids co-product allocation by expansion. average or supplier-specific treats applying factors. Agricultural LCAs regard local production as affected they only include the interventions related to harvested area. However, changes demand may affect foreign production, yields displacement of other crops regions where agricultural area is constrained, there a need for incorporating actual processes This paper presents framework defining boundaries applied an illustrative case study; increased wheat Denmark. aim screening facilitate application proposed methodology. A secondary illustrate that different ways meet products impact from these vary significantly.