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dc.contributor.authorNí Choncubhair, Órlaith
dc.contributor.authorOsborne, Bruce
dc.contributor.authorFinnan, John
dc.contributor.authorLanigan, Gary
dc.date.accessioned2021-07-21T11:14:08Z
dc.date.available2021-07-21T11:14:08Z
dc.date.issued2016-05-12
dc.identifier.citationNí Choncubhair, Ó., Osborne, B., Finnan, J. and Lanigan, G. (2017), Comparative assessment of ecosystem C exchange in Miscanthus and reed canary grass during early establishment. GCB Bioenergy, 9: 280-298. https://doi.org/10.1111/gcbb.12343en_US
dc.identifier.urihttp://hdl.handle.net/11019/2481
dc.descriptionpeer-revieweden_US
dc.description.abstractLand‐use change to bioenergy crop production can contribute towards addressing the dual challenges of greenhouse gas mitigation and energy security. Realisation of the mitigation potential of bioenergy crops is, however, dependent on suitable crop selection and full assessment of the carbon (C) emissions associated with land conversion. Using eddy covariance‐based estimates, ecosystem C exchange was studied during the early‐establishment phase of two perennial crops, C3 reed canary grass (RCG) and C4 Miscanthus, planted on former grassland in Ireland. Crop development was the main determinant of net carbon exchange in the Miscanthus crop, restricting significant net C uptake during the first 2 years of establishment. The Miscanthus ecosystem switched from being a net C source in the conversion year to a strong net C sink (−411 ± 63 g C m−2) in the third year, driven by significant above‐ground growth and leaf expansion. For RCG, early establishment and rapid canopy development facilitated a net C sink in the first 2 years of growth (−319 ± 57 (post‐planting) and −397 ± 114 g C m−2, respectively). Peak seasonal C uptake occurred three months earlier in RCG (May) than Miscanthus (August), however Miscanthus sustained net C uptake longer into the autumn and was close to C‐neutral in winter. Leaf longevity is therefore a key advantage of C4 Miscanthus in temperate climates. Further increases in productivity are projected as Miscanthus reaches maturity and are likely to further enhance the C sink potential of Miscanthus relative to RCG.en_US
dc.description.sponsorshipDepartment of Agriculture, Food and the Marine, Ireland
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.ispartofseriesGCB Bioenergy;
dc.rightsAttribution-NonCommercial-ShareAlike 4.0 International*
dc.rights.urihttp://doi.wiley.com/10.1002/tdm_license_1
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/*
dc.subjectbioenergy cropsen_US
dc.subjectC4 photosynthesisen_US
dc.subjectcarbon balanceen_US
dc.subjecteddy covarianceen_US
dc.subjectgrasslanden_US
dc.subjectland-use changeen_US
dc.subjectleaf longevityen_US
dc.subjectperennial rhizomatous grassesen_US
dc.subjectPhalaris arundinaceaen_US
dc.subjectreed canary grassen_US
dc.titleComparative assessment of ecosystem C exchange in Miscanthusand reed canary grass during early establishmenten_US
dc.typeArticleen_US
dc.identifier.doihttps://doi.org/10.1111/gcbb.12343
dc.contributor.sponsorDepartment of Agriculture, Food and the Marineen_US
dc.contributor.sponsorGrantNumber07527en_US
dc.source.volume9
dc.source.issue2
dc.source.beginpage280
dc.source.endpage298
refterms.dateFOA2021-07-21T11:14:09Z
dc.source.journaltitleGCB Bioenergy


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