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Energy transition in Agri-food systems. Structural change, drivers and policy implications (Spain, 1960-2010)

机译:农业食品系统中的能源过渡。结构变化,驱动力和政策影响(西班牙,1960-2010年)

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This paper analyses the use of energy in the Spanish Agri-Food System (ASF) between 1960 and 2010. It distinguishes between several different forms of energy (renewable, non-renewable, final and primary), six sectors and up to a hundred activities. The use of energy in the AFS increased 10.2 fold during the period analysed, from 181 TJ to 1855 TJ, between 1960 and 2015. In the first stage, up to 1985, agriculture accounted for the majority of new consumption. However, from that date onwards, consumption in other sectors such as transport, packaging and homes grew at a faster rate. A decomposition analysis reveals that the increase in activity in the sector, in other words managed biomass, explains 46% of the increase in the use of energy, whereas the rest is explained by losses in efficiency, chiefly losses in efficiency within a sector that requires a greater amount of resources per biomass produced. The final energy consumption of the AFS over the total consumption of the economy represents 19.6%, suggesting a significant potential of agri-food policies as means of reducing the use of energy.
机译:本文分析了西班牙农业食品系统(ASF)在1960年至2010年之间的能源使用情况。它区分了几种不同形式的能源(可再生,不可再生,最终和主要能源),六个部门和多达一百种活动。在所分析的时期内,从1960年到2015年之间,从181 TJ到1855 TJ,AFS中的能源使用增加了10.2倍。在第一阶段,直到1985年,农业占新消费的大部分。但是,从那时起,运输,包装和房屋等其他行业的消费增长速度更快。分解分析显示,该部门活动的增加(换句话说,受管理的生物量)解释了能源使用量增加的46%,而其余部分解释为效率损失,主要是该部门内需要进行效率损失的原因。每生产的生物量需要更多的资源。 AFS的最终能源消耗占经济总量的19.6%,表明农业食品政策具有巨大潜力,可以减少能源使用。

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