{"type": "FeatureCollection", "features": [{"id": "10.1051/ocl/2013027", "type": "Feature", "geometry": null, "properties": {"updated": "2026-04-16T16:17:38Z", "type": "Journal Article", "created": "2013-10-02", "title": "The Importance Of Land Use Change In The Environmental Balance Of Biofuels", "description": "The potential of first generation biofuels to mitigate climate change is still largely debated in the scientific and policy-making arenas. It is currently assessed through life cycle assessment (LCA), a method for accounting for the greenhouse gas (GHG) emissions of a given product from \u201ccradle-to-grave\u201d, which is widely used to aid decision making on environmental issues. Although LCA is standardized, its application to biofuels leads to inconclusive results often fraught by a high variability and uncertainty. This is due to differences in quantifying the environmental impacts of feedstock production, and the difficulties encountered when considering land use changes (LUC) effects. The occurrence of LUC mechanisms is in part the consequence of policies supporting the use of biofuels in the transport sector, which implicitly increases the competition between various possible uses of land worldwide. Here, we review the methodologies recently put forward to include LUC effects in LCAs, and examples from the US, Europe and France. These cross analysis show that LCA needs to be adapted and combined to other tools such as economic modeling in order to provide a more reliable assessment of the biofuels chains.", "keywords": ["[SDV.SA]Life Sciences [q-bio]/Agricultural sciences", "land use change", "2. Zero hunger", "[SDV.SA] Life Sciences [q-bio]/Agricultural sciences", "Oils", " fats", " and waxes", "330", "02 engineering and technology", "15. Life on land", "sustainability", "01 natural sciences", "7. Clean energy", "lan use change", "biofuels", "12. Responsible consumption", "Sustainability", "life cycle assessment", "13. Climate action", "11. Sustainability", "0202 electrical engineering", " electronic engineering", " information engineering", "sustainability;life cycle assessment;biofuels;lan use change;uncertainty", "TP670-699", "uncertainty", "0105 earth and related environmental sciences"], "contacts": [{"organization": "Ben Aoun, Wassim, Gabrielle, Benoit, Gagnepain, Bruno,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.1051/ocl/2013027"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/OCL", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1051/ocl/2013027", "name": "item", "description": "10.1051/ocl/2013027", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1051/ocl/2013027"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-09-01T00:00:00Z"}}, {"id": "10.2527/1998.763906x", "type": "Feature", "geometry": null, "properties": {"license": "unspecified", "updated": "2026-04-16T16:20:13Z", "type": "Journal Article", "created": "2016-08-09", "description": "We measured effects of continuous vs twice-daily feeding, the addition of unsaturated fat to the diet, and monensin on milk production, milk composition, feed intake, and CO2-methane production in four experiments in a herd of 88 to 109 milking Holsteins. Methane and CO2 production increased with twice-daily feeding, but the CO2:CH4 ratio remained unchanged. Soybean oil did not affect the milkfat percentages, but fatty acid composition was changed. All saturated fatty acids up to and including 16:0 decreased (P < .01), whereas 18:0 and trans 18:1 increased (P < .001). The 18:2 conjugated dienes also increased (P < .01) when the cows were fed soybean oil. Monensin addition to the diet at 24 ppm decreased methane production (P < .01); the CO2:CH4 ratios reached 15, milk production increased (P < .01), and milkfat percentage and total milkfat output decreased (P < .01), as did feed consumption, compared with cows fed diets without monensin (P < .05). Milk fatty acid composition showed evidence of depressed ruminal biohydrogenation: saturated fatty acids (P < .05) decreased and 18:1 increased (P < .001); most of the increase was seen in the trans 18:1 isomer. As with soybean oil feeding, addition of monensin also increased (P < .05) the concentration of conjugated dienes. The monensin feeding trial was repeated 161 d later with 88 cows, of which 67 received monensin in the diet in the first trial and 21 cows were newly freshened and had never received monensin. Methane production again decreased (P < .05), but this time the CO2:CH4 ratio did not change and all other monensin-related effects were absent. The ruminal microflora in the cows that had previously received monensin seemed to have undergone some adaptive changes and no longer responded as before.", "keywords": ["2. 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