Sustainable Intensification Farming as an Enabler for Farm Eco-Efficiency?
研究采用方向性元前沿方法测量农场生态效率，基于德国北部平原的匹配样本，发现采用可持续集约化实践的农场生态效率更高，但多数农场未充分挖掘生物多样性改善潜力。
Abstract Sustainable Intensification (SI) practices offer adopters exploiting improvement potentials in environmental performance of farming, i.e. enhance ecosystem functionality, while maintaining productivity. This paper proposes a directional meta-frontier approach for measuring farms’ eco-efficiency and respective improvement potentials in the direction of farms’ ecological output for SI evaluation. We account for farms’ selection processes into SI using a behavioural model and rely on a matched sample for adopters and non-adopters of agronomic SI practices from the northern German Plain. We conclude that the SI adopters determined the sample’s system frontier and showed higher mean eco-efficiency, but that most farms in our sample did not fully exploit the improvement potentials in biodiversity as ecological outcome.