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dc.contributor.authorSelbie, D. R.en
dc.contributor.authorLanigan, G. J.en
dc.contributor.authorLaughlin, R. J.en
dc.contributor.authorDi, Hong J.en
dc.contributor.authorMoir, James L.en
dc.contributor.authorCameron, Keith C.en
dc.contributor.authorClough, Timothy J.en
dc.contributor.authorWatson, C. J.en
dc.contributor.authorGrant, J.en
dc.contributor.authorSomers, C.en
dc.contributor.authorRichards, K. G.en
dc.identifier.citationSelbie, D. R. et al. (2015). Confirmation of co-denitrification in grazed grassland. Scientific Reports, 5, 17361. Doi: 10.1038/srep17361.en
dc.description.abstractPasture-based livestock systems are often associated with losses of reactive forms of nitrogen (N) to the environment. Research has focused on losses to air and water due to the health, economic and environmental impacts of reactive N. Di-nitrogen (N₂) emissions are still poorly characterized, both in terms of the processes involved and their magnitude, due to financial and methodological constraints. Relatively few studies have focused on quantifying N₂ losses in vivo and fewer still have examined the relative contribution of the different N₂ emission processes, particularly in grazed pastures. We used a combination of a high ¹⁵N isotopic enrichment of applied N with a high precision of determination of ¹⁵N isotopic enrichment by isotope-ratio mass spectrometry to measure N₂ emissions in the field. We report that 55.8 g N m⁻² (95%, CI 38 to 77 g m⁻²) was emitted as N₂ by the process of co-denitrification in pastoral soils over 123 days following urine deposition (100 g N m⁻²), compared to only 1.1 g N m⁻² (0.4 to 2.8 g m⁻²) from denitrification. This study provides strong evidence for co-denitrification as a major N₂ production pathway, which has significant implications for understanding the N budgets of pastoral ecosystems.en
dc.publisherNature Publishing Groupen
dc.relationThe original publication is available from - Nature Publishing Group -
dc.rightsCopyright © The Authors. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
dc.subjectpastoral ecosystemsen
dc.subjectpastoral soilsen
dc.subjectnitrogen lossesen
dc.subject.meshNitrous Oxideen
dc.titleConfirmation of co-denitrification in grazed grasslanden
dc.typeJournal Article
lu.contributor.unitLincoln Universityen
lu.contributor.unitFaculty of Agriculture and Life Sciencesen
lu.contributor.unitDepartment of Soil and Physical Sciencesen
dc.subject.anzsrc070303 Crop and Pasture Biochemistry and Physiologyen
dc.subject.anzsrc0703 Crop and Pasture Productionen
dc.relation.isPartOfScientific Reportsen
pubs.notesArticle 17361en
pubs.organisational-group/LU/Agriculture and Life Sciences
pubs.organisational-group/LU/Agriculture and Life Sciences/SOILS
pubs.organisational-group/LU/Research Management Office
pubs.organisational-group/LU/Research Management Office/QE18

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