{"type": "FeatureCollection", "features": [{"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. Philip,", "roles": ["creator"]}]}, "links": [{"href": "https://doi.org/10.5061/dryad.f1b82"}, {"rel": "self", "type": "application/geo+json", "title": "10.5061/dryad.f1b82", "name": "item", "description": "10.5061/dryad.f1b82", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.5061/dryad.f1b82"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2017-03-28T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=methane+%28CH4%29+oxidation&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=methane+%28CH4%29+oxidation&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=methane+%28CH4%29+oxidation&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=methane+%28CH4%29+oxidation&offset=1", "hreflang": "en-US"}], "numberMatched": 1, "numberReturned": 1, "distributedFeatures": [], "timeStamp": "2026-07-26T21:55:21.293761Z"}