Moioli Emanuele, Salvati Federico, Chiesa Marco, Siecha Roza T, Manenti Flavio, Laio Francesco, Rulli Maria Cristina
Alta Scuola Politecnica, Piazza Leonardo da Vinci 32, 20133 Milano, Italy.
Politecnico di Milano, Dipartimento di Chimica, Materiali ed Ingegneria Chimica 'G. Natta', Piazza Leonardo da Vinci 32, 20133 Milano, Italy.
Adv Water Resour. 2018 Nov;121:22-31. doi: 10.1016/j.advwatres.2018.07.007.
This paper assesses the sustainability of bioenergy production under a nexus perspective through a new efficiency type index. The index describes 1st generation biofuel production under the perspective of the implied consumption of natural resources. We consider the sustainability of energy production as a sequence of steps, each characterised by its efficiency, and propose an index which returns an overall efficiency value describing the adequacy or inadequacy of the considered processes under a nexus perspective. The direct application of the nexus index entails an indication of the possible improvements needed to move production towards most sustainable processes or places. Moreover, it allows evaluating the efficiency of the main crops currently used in biofuel production with respect to the water-food-energy nexus. The results depict countries presently capable of performing sustainable production of 1st generation biofuel from particular crops. Furthermore, the analysis of the single components of the nexus index allows understanding the effects of possible improvements (e.g. soil and water management, new generation biofuels) on the overall production efficiency under a nexus perspective.
本文通过一种新的效率类型指标，从关联视角评估生物能源生产的可持续性。该指标从自然资源隐含消耗的角度描述第一代生物燃料生产。我们将能源生产的可持续性视为一系列步骤，每个步骤都以其效率为特征，并提出一个指标，该指标返回一个总体效率值，描述在关联视角下所考虑过程的充分性或不充分性。关联指标的直接应用意味着指出为使生产朝着最可持续的过程或地点发展所需的可能改进。此外，它还能评估目前用于生物燃料生产的主要作物在水 - 食物 - 能源关联方面的效率。结果描绘了目前有能力从特定作物进行第一代生物燃料可持续生产的国家。此外，对关联指标单个组成部分的分析有助于理解在关联视角下可能的改进（如土壤和水资源管理、新一代生物燃料）对总体生产效率的影响。
