IMPACT4SOIL OpenAire Online Research Database In Technology UnpayWall Crossref Microsoft Academic Graph University of Southern Denmark Research Output Europe PubMed Central Environmental Science & Technology Open Access 2012-11-05 In the endeavor of optimizing the sustainability of bioenergy production in Denmark, this consequential life cycle assessment (LCA) evaluated the environmental impacts associated with the production of heat and electricity from one hectare of Danish arable land cultivated with three perennial crops: ryegrass (Lolium perenne), willow (Salix viminalis) and Miscanthus giganteus. For each, four conversion pathways were assessed against a fossil fuel reference: (I) anaerobic co-digestion with manure, (II) gasification, (III) combustion in small-to-medium scale biomass combined heat and power (CHP) plants and IV) co-firing in large scale coal-fired CHP plants. Soil carbon changes, direct and indirect land use changes as well as uncertainty analysis (sensitivity, MonteCarlo) were included in the LCA. Results showed that global warming was the bottleneck impact, where only two scenarios, namely willow and Miscanthus co-firing, allowed for an improvement as compared with the reference (-82 and -45 t CO₂-eq. ha⁻¹, respectively). The indirect land use changes impact was quantified as 310 ± 170 t CO₂-eq. ha⁻¹, representing a paramount average of 41% of the induced greenhouse gas emissions. The uncertainty analysis confirmed the results robustness and highlighted the indirect land use changes uncertainty as the only uncertainty that can significantly change the outcome of the LCA results. Crops, Agricultural Manures Nitrogen Life cycle Coal gasification plants Sus scrofa 0211 other engineering and technologies Crops 02 engineering and technology /dk/atira/pure/sustainabledevelopmentgoals/responsible_consumption_and_production; name=SDG 12 - Responsible Consumption and Production Global Warming 7. Clean energy Environmental impact /dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energy; name=SDG 7 - Affordable and Clean Energy Anaerobic digestion 11. Sustainability 0202 electrical engineering, electronic engineering, information engineering Animals Anaerobiosis Gas emissions 2. Zero hunger Fossil fuels Global warming /dk/atira/pure/sustainabledevelopmentgoals/life_on_land; name=SDG 15 - Life on Land Agriculture Carbon Dioxide 15. Life on land Carbon Coal combustion Manure Greenhouse gases Carbon dioxide 13. Climate action Biofuels Land use Uncertainty analysis Cogeneration plants Power generation Hamelin, Lorie, Tonini, Davide, Astrup, Thomas, Wenzel, Henrik, 2012-11-30 journalpaper In the endeavor of optimizing the sustainability of bioenergy production in Denmark, this consequential life cycle assessment (LCA) evaluated the environmental impacts associated with the production of heat and electricity from one hectare of Danish arable land cultivated with three perennial crops: ryegrass (Lolium perenne), willow (Salix viminalis) and Miscanthus giganteus. For each, four conversion pathways were assessed against a fossil fuel reference: (I) anaerobic co-digestion with manure, (II) gasification, (III) combustion in small-to-medium scale biomass combined heat and power (CHP) plants and IV) co-firing in large scale coal-fired CHP plants. Soil carbon changes, direct and indirect land use changes as well as uncertainty analysis (sensitivity, MonteCarlo) were included in the LCA. Results showed that global warming was the bottleneck impact, where only two scenarios, namely willow and Miscanthus co-firing, allowed for an improvement as compared with the reference (-82 and -45 t CO₂-eq. ha⁻¹, respectively). The indirect land use changes impact was quantified as 310 ± 170 t CO₂-eq. ha⁻¹, representing a paramount average of 41% of the induced greenhouse gas emissions. The uncertainty analysis confirmed the results robustness and highlighted the indirect land use changes uncertainty as the only uncertainty that can significantly change the outcome of the LCA results. Bioenergy Production From Perennial Energy Crops: A Consequential Lca Of 12 Bioenergy Scenarios Including Land Use Changes 10.1021/es3024435 https://doi.org/10.1021/es3024435