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首页> 外文期刊>The Science of the Total Environment >Benchmarking environmental and operational parameters through eco-efficiency criteria for dairy farms
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Benchmarking environmental and operational parameters through eco-efficiency criteria for dairy farms

机译：通过生态效率标准对奶牛场进行环境和运营参数基准测试

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摘要

Life Cycle Assessment (LCA) is often used for the environmental evaluation of agri-food systems due to its holistic perspective. In particular, the assessment of milk production at farm level requires the evaluation of multiple dairy farms to guarantee the representativeness of the study when a regional perspective is adopted. This article shows the joint implementation of LCA and Data Envelopment Analysis (DEA) in order to avoid the formulation of an average farm, therefore preventing standard deviations associated with the use of average inventory data while attaining the characterization and benchmarking of the operational and environmental performance of dairy farms. Within this framework, 72 farms located in Galicia (NW Spain) were subject to an LCA + DEA study which led to identify those farms with an efficient operation. Furthermore, target input consumption levels were benchmarked for each inefficient farm, and the corresponding target environmental impacts were calculated so that eco-efficiency criteria were verified. Thus, average reductions of up to 38% were found for input consumption levels, leading to impact reductions above 20% for every environmental impact category. Finally, the economic savings arising from efficient farming practices were also estimated. Economic savings of up to 0.13 € per liter of raw milk were calculated, which means extra profits of up to 40% of the final raw milk price.
机译：生命周期评估（LCA）由于具有整体性，因此常用于农业食品系统的环境评估。特别是，在农场一级对​​牛奶产量的评估要求对多个奶牛场进行评估，以确保采用区域性观点时研究的代表性。本文显示了LCA和数据包络分析（DEA）的联合实施，以避免制定平均农场，从而避免与平均库存数据的使用相关的标准偏差，同时获得对运营和环境绩效的描述和基准奶牛场。在此框架内，位于加利西亚（西班牙西北部）的72个农场接受了LCA + DEA研究，从而确定了高效运营的农场。此外，为每个效率低下的农场设定了目标投入物消费水平的基准，并计算了相应的目标环境影响，从而验证了生态效率标准。因此，对于投入品消费水平，平均减少了多达38％，导致每个环境影响类别的影响减少超过20％。最后，还估算了有效的耕作方式所带来的经济节省。据计算，每公升原奶最多可节省0.13欧元，这意味着最高可节省最终原奶价格40％的额外利润。

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