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dc.contributor.authorIordan, Cristina Maria
dc.contributor.authorGiroux, Baptiste
dc.contributor.authorNæss, Jan Sandstad
dc.contributor.authorHu, Xiangping
dc.contributor.authorCavalett, Otávio
dc.contributor.authorCherubini, Francesco
dc.date.accessioned2022-10-14T10:39:07Z
dc.date.available2022-10-14T10:39:07Z
dc.date.created2022-10-11T10:22:14Z
dc.date.issued2023
dc.identifier.citationEnvironmental impact assessment review. 2023, 98, .en_US
dc.identifier.issn0195-9255
dc.identifier.urihttps://hdl.handle.net/11250/3026128
dc.description.abstractCultivating perennial grasses on abandoned cropland for bioenergy production is a promising option to meet future renewable energy demands at lower risks for food security and environmental degradation. Studies on the potential environmental impacts of perennial grasses mostly focus on specific locations, while effects and potentials of a large-scale deployment on abandoned cropland are still unexplored. This work performs a spatially explicit life cycle assessment of agricultural production of three perennial grasses (miscanthus, switchgrass, and reed canary grass) on abandoned cropland in Europe under rainfed and irrigated conditions. We estimate the primary bioenergy potentials and potential environmental impacts on climate change (including soil organic carbon changes), freshwater and marine eutrophication, terrestrial acidification, fossil resource scarcity and water scarcity footprint. Under rainfed conditions, switchgrass has the largest supply potential (174 MtDM yr−1) while miscanthus has the lowest average climate impact (169 kg CO2 tDM−1). Irrigation increases biomass yields by 97% for miscanthus, 62% for switchgrass and 29% for reed canary grass, but climate change impacts per tDM increase by 24%, 32% and 44%. Water scarcity footprints also increase, ranging from 4.7 to 9 world m3eq. kgDM−1. When soil organic carbon changes are considered, the net climate effects turn to negative for all perennial grasses under rainfed conditions (and for miscanthus with irrigation as well), showing a potential for land-based negative emissions by storing carbon in soils while delivering renewable energy. Bioenergy potentials range between 1 and 7 EJyr−1 (corresponding to 1–10% of today's EU primary energy demand) and the scale of negative emissions can be up to −24 Mt. CO2-eq. yr−1 (equal to 5.6% of EU's agricultural sector emissions). The consideration of site-specific conditions for water supply and crop affinity can identify the best local agricultural practices for energy yields and negative emissions at reduced environmental trade-offs.en_US
dc.description.abstractEnergy potentials, negative emissions, and spatially explicit environmental impacts of perennial grasses on abandoned cropland in Europeen_US
dc.language.isoengen_US
dc.publisherElsevier Scienceen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleEnergy potentials, negative emissions, and spatially explicit environmental impacts of perennial grasses on abandoned cropland in Europeen_US
dc.title.alternativeEnergy potentials, negative emissions, and spatially explicit environmental impacts of perennial grasses on abandoned cropland in Europeen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.pagenumber17en_US
dc.source.volume98en_US
dc.source.journalEnvironmental impact assessment reviewen_US
dc.identifier.doihttps://doi.org/10.1016/j.eiar.2022.106942
dc.identifier.cristin2060354
dc.relation.projectNorges forskningsråd: 288047en_US
dc.relation.projectNorges forskningsråd: 257622en_US
dc.relation.projectNorges forskningsråd: 294534en_US
dc.description.localcodeThis is an open access article distributed under the terms of the Creative Commons CC-BY license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal