The need for co-product allocation in the life cycle assessment of agricultural systems—is “biophysical” allocation progress?

详细信息    查看全文

• 作者：Stephen G. Mackenzie ; Ilkka Leinonen…
• 关键词：Agricultural systems ; Agricultural LCA ; Allocation methodology ; Biophysical allocation ; Co ; product allocation ; Livestock LCA
• 刊名：The International Journal of Life Cycle Assessment
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：22
• 期：2
• 页码：128-137
• 全文大小：757KB
• 刊物类别：Earth and Environmental Science
• 刊物主题：Environment, general; Environmental Economics; Environmental Engineering/Biotechnology; Environmental Chemistry;
• 出版者：Springer Berlin Heidelberg
• ISSN：1614-7502
• 卷排序：22

文摘

PurposeSeveral new “biophysical” co-product allocation methodologies have been developed for LCA studies of agricultural systems based on proposed physical or causal relationships between inputs and outputs (i.e. co-products). These methodologies are thus meant to be preferable to established allocation methodologies such as economic allocation under the ISO 14044 standard. The aim here was to examine whether these methodologies really represent underlying physical relationships between the material and energy flows and the co-products in such systems, and hence are of value.