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• W2072680814 startingPage "4170" @default.
• W2072680814 abstract "Modern food production depends on limited natural resources for providing energy and fertilisers. We assess the fossil fuel dependency for the Danish food production system by means of Food Energy Returned on fossil Energy Invested (Food-EROI) and by the use of energy intensive nutrients from imported livestock feed and commercial fertilisers. The analysis shows that the system requires 221 PJ of fossil energy per year and that for each joule of fossil energy invested in farming, processing and transportation, 0.25 J of food energy is produced; 0.28 when crediting for produced bioenergy. Furthermore, nutrients in commercial fertiliser and imported feed account for 84%, 90% and 90% of total supply of N, P and K, respectively. We conclude that the system is unsustainable because it is embedded in a highly fossil fuel dependent system based on a non-circular flow of nutrients. As energy and thus nutrient constraints may develop in the coming decades, the current system may need to adapt by reducing use of fossil energy at the farm and for transportation of food and feed. An operational strategy may be to relocalise the supply of energy, nutrients, feed and food." @default.
• W2072680814 created "2016-06-24" @default.
• W2072680814 creator A5063488320 @default.
• W2072680814 creator A5081259571 @default.
• W2072680814 date "2013-08-15" @default.
• W2072680814 modified "2023-09-26" @default.
• W2072680814 title "Energy Analysis of the Danish Food Production System: Food-EROI and Fossil Fuel Dependency" @default.
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• W2072680814 doi "https://doi.org/10.3390/en6084170" @default.
• W2072680814 hasPublicationYear "2013" @default.
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