{"type": "FeatureCollection", "features": [{"id": "10.1016/j.biombioe.2012.02.011", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-26T16:15:30Z", "type": "Journal Article", "created": "2012-03-09", "title": "Origins Of The Debate On The Life-Cycle Greenhouse Gas Emissions And Energy Consumption Of First-Generation Biofuels \u2013 A Sensitivity Analysis Approach", "description": "Available results about energy and GreenHouse Gases (GHG) balances of biofuels from Life-Cycle Assessment (LCA) or life-cycle based studies present large discrepancies and thus, may lead to contradictory policy-making measures. This work reviewed seven important European LCA studies in a sensitivity analysis approach in order to get a better understanding of the roots of such a debate for three major biofuels in European production: rape methyl ester and ethanol from wheat and sugar beet. Global trends and variability of energy and GHG balances were depicted and completed with a sensitivity analysis carried out for each methodological and data parameter, which allowed making recommendations on the carrying out of LCA in a policy-making or a biofuels comparison context. Methodological choices, and especially allocation rule, appeared as key elements for results variation with influences on balances up to 149%; system expansion approach was identified as the most relevant rule since it integrates the market potential and the environmental interest of by-products promotion, which was pointed out as a crucial point for biofuels sustainability. The influence of local specificity for cultivation data was evaluated up to 167%, which puts too large geographical coverage in question. Modelling uncertainties due to N2O emissions from soils showed influences from 17 to 46%, which represents a crucial challenge for research and for LCA results accuracy. Approximations evaluation pointed out the need to integrate agricultural machinery into the assessment. Finally, land-use issue revealed its dramatic importance for LCA results and the need to define explicit scenarios for land-use alternatives.", "keywords": ["[SDV.BIO]Life Sciences [q-bio]/Biotechnology", "330", "http://aims.fao.org/aos/agrovoc/c_24420", "P06 - Sources d'\u00e9nergie renouvelable", "http://aims.fao.org/aos/agrovoc/c_37938", "http://aims.fao.org/aos/agrovoc/c_890", "\u00e9thanol", "02 engineering and technology", "7. Clean energy", "01 natural sciences", "630", "12. Responsible consumption", "11. Sustainability", "0202 electrical engineering", " electronic engineering", " information engineering", "http://aims.fao.org/aos/agrovoc/c_10677", "gaz \u00e0 effet de serre", "http://aims.fao.org/aos/agrovoc/c_34841", "[INFO.INFO-BT]Computer Science [cs]/Biotechnology", "Triticum", "http://aims.fao.org/aos/agrovoc/c_2671", "http://aims.fao.org/aos/agrovoc/c_1066", "0105 earth and related environmental sciences", "2. Zero hunger", "http://aims.fao.org/aos/agrovoc/c_27465", "Ethanol", "Sugar beet", "Brassica napus", "http://aims.fao.org/aos/agrovoc/c_2724", "Life cycle analysis LCA", "15. Life on land", "http://aims.fao.org/aos/agrovoc/c_9000056", "biocarburant", "13. Climate action", "Rapeseed methyl ester", "Wheat", "mod\u00e9lisation environnementale", "ester", "P01 - Conservation de la nature et ressources fonci\u00e8res", "impact sur l'environnement", "Beta vulgaris", "Sensitivity analysis", "P02 - Pollution", "http://aims.fao.org/aos/agrovoc/c_7950", "\u00e9valuation de l'impact"]}, "links": [{"href": "https://doi.org/10.1016/j.biombioe.2012.02.011"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Biomass%20and%20Bioenergy", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.biombioe.2012.02.011", "name": "item", "description": "10.1016/j.biombioe.2012.02.011", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.biombioe.2012.02.011"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2012-05-01T00:00:00Z"}}, {"id": "10.1016/j.njas.2011.05.002", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-26T16:16:26Z", "type": "Journal Article", "created": "2011-06-27", "title": "Life Cycle Analysis Of Greenhouse Gas Emissions From Organic And Conventional Food Production Systems, With And Without Bio-Energy Options", "description": "AbstractThe Nafferton Factorial Systems Comparison experiments were begun in 2003 to provide data on the production and quality effects of a whole spectrum of different crop production systems ranging from fully conventional to fully organic. In this paper, the crop production data for the first 4 years of the experiments have been used to conduct a life cycle analysis of the greenhouse gas (GHG) emissions from organic and conventional production systems. Actual yield and field activity data from two of the treatments in the experiments (a stocked organic system and a stockless conventional system) were used to determine the GHG emissions per hectare and per MJ of human food energy produced, using both the farm gate and wider society as system boundaries. Emissions from these two baseline scenarios were compared with six other modelled scenarios: conventional stocked system, a stockless system where all crop residues were incorporated into the soil, two stocked systems where manure was used for biogas production, and two stockless systems where all crop residues were removed from the field and used for bio-energy production. Changing the system boundary from the farm gate to wider society did not substantially alter the GHG emissions per hectare of land when organic production methods were used; however, in conventional systems, which rely on more off-farm inputs, emissions were much greater per hectare when societal boundaries were used. Incorporating on-farm bioenergy production into the system allowed GHG emissions to be offset by energy generation. In the case of the organic system that included pyrolysis of crop residues, net GHG emissions were negative, indicating that energy offsets and sequestration of C in biochar can completely offset emissions of GHG from food production. The analysis demonstrates the importance of considering system boundaries and the end use of all agricultural products when conducting life cycle analyses of food production systems.", "keywords": ["2. Zero hunger", "Carbon sequestration", "Organic farming", "0211 other engineering and technologies", "Plant Science", "02 engineering and technology", "15. Life on land", "Development", "7. Clean energy", "6. Clean water", "12. Responsible consumption", "Mixed farming", "13. Climate action", "11. Sustainability", "Greenhouse gas emissions", "Crop production systems", "0202 electrical engineering", " electronic engineering", " information engineering", "Animal Science and Zoology", "Off-farm inputs", "Life cycle analysis", "Agronomy and Crop Science", "Food Science"]}, "links": [{"href": "https://doi.org/10.1016/j.njas.2011.05.002"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/NJAS%3A%20Wageningen%20Journal%20of%20Life%20Sciences", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.njas.2011.05.002", "name": "item", "description": "10.1016/j.njas.2011.05.002", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.njas.2011.05.002"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2011-12-01T00:00:00Z"}}, {"id": "10.5061/dryad.f1b82", "type": "Feature", "geometry": null, "properties": {"updated": "2026-07-26T16:21:26Z", "type": "Dataset", "title": "Data from: Nitrogen fertilization challenges the climate benefit of cellulosic biofuels", "description": "unspecifiedCellulosic biofuels are intended to improve future energy and climate  security. Nitrogen (N) fertilizer is commonly recommended to stimulate  yields but can increase losses of the greenhouse gas nitrous oxide (N2O)  and other forms of reactive N, including nitrate. We measured soil N2O  emissions and nitrate leaching along a switchgrass (Panicum virgatum) high  resolution N-fertilizer gradient for three years post-establishment.  Results revealed an exponential increase in annual N2O emissions that each  year became stronger (R 2 > 0.9, P < 0.001) and deviated  further from the fixed percentage assumed for IPCC Tier 1 emission  factors. Concomitantly, switchgrass yields became less responsive each  year to N fertilizer. Nitrate leaching (and calculated indirect N2O  emissions) also increased exponentially in response to N inputs, but  neither methane (CH4) uptake nor soil organic carbon changed detectably.  Overall, N fertilizer inputs at rates greater than crop need curtailed the  climate benefit of ethanol production almost two-fold, from a maximum  mitigation capacity of \u22125.71 \u00b1 0.22 Mg CO2e ha\u22121 yr\u22121 in switchgrass  fertilized at 56 kg N ha\u22121 to only \u22122.97 \u00b1 0.18 Mg CO2e ha\u22121 yr\u22121 in  switchgrass fertilized at 196 kg N ha\u22121. Minimizing N fertilizer use will  be an important strategy for fully realizing the climate benefits of  cellulosic biofuel production.", "keywords": ["2. Zero hunger", "Switchgrass", "Panicum virgatum", "13. Climate action", "nitrate leaching", "IPCC emission factor", "methane (CH4) oxidation", "15. Life on land", "7. Clean energy", "Life cycle analysis", "nitrous oxide (N2O)", "6. Clean water", "nitrogen fertilizer"], "contacts": [{"organization": "Ruan, Leilei, Bhardwaj, Ajay K., Hamilton, Stephen K., Robertson, G. 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