Influence of soil moisture on codenitrification fluxes from a urea-affected pasture soil
dc.contributor.author | Clough, Timothy | |
dc.contributor.author | Lanigan, GJ | |
dc.contributor.author | de Klein, CAM | |
dc.contributor.author | Samad, MS | |
dc.contributor.author | Morales, SE | |
dc.contributor.author | Rex, D | |
dc.contributor.author | Bakken, LR | |
dc.contributor.author | Johns, C | |
dc.contributor.author | Condron, LM | |
dc.contributor.author | Grant, J | |
dc.contributor.author | Richards, KG | |
dc.coverage.spatial | England | |
dc.date.accessioned | 2018-02-28T01:07:43Z | |
dc.date.available | 2017-05-19 | |
dc.date.issued | 2017-05-19 | |
dc.date.submitted | 2017-04-10 | |
dc.description.abstract | Intensively managed agricultural pastures contribute to N₂O and N₂ fluxes resulting in detrimental environmental outcomes and poor N use efficiency, respectively. Besides nitrification, nitrifier-denitrification and heterotrophic denitrification, alternative pathways such as codenitrification also contribute to emissions under ruminant urine-affected soil. However, information on codenitrification is sparse. The objectives of this experiment were to assess the effects of soil moisture and soil inorganic-N dynamics on the relative contributions of codenitrification and denitrification (heterotrophic denitrification) to the N₂O and N₂ fluxes under a simulated ruminant urine event. Repacked soil cores were treated with ¹⁵N enriched urea and maintained at near saturation (−1 kPa) or field capacity (−10 kPa). Soil inorganic-N, pH, dissolved organic carbon, N₂O and N₂ fluxes were measured over 63 days. Fluxes of N₂, attributable to codenitrification, were at a maximum when soil nitrite (NO₂⁻) concentrations were elevated. Cumulative codenitrification was higher (P = 0.043) at −1 kPa. However, the ratio of codenitrification to denitrification did not differ significantly with soil moisture, 25.5 ± 15.8 and 12.9 ± 4.8% (stdev) at −1 and −10 kPa, respectively. Elevated soil NO₂⁻ concentrations are shown to contribute to codenitrification, particularly at −1 kPa. | |
dc.format.extent | 12 pages | |
dc.format.medium | Electronic | |
dc.identifier | 10.1038/s41598-017-02278-y | |
dc.identifier | https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=elements_prod&SrcAuth=WosAPI&KeyUT=WOS:000401614900043&DestLinkType=FullRecord&DestApp=WOS_CPL | |
dc.identifier.citation | Clough et al. (2017). Influence of soil moisture on codenitrification fluxes from a urea-affected pasture soil. Scientific Reports, 7, 2185. doi:10.1038/s41598-017-02278-y | |
dc.identifier.doi | 10.1038/s41598-017-02278-y | |
dc.identifier.eissn | 2045-2322 | |
dc.identifier.issn | 2045-2322 | |
dc.identifier.other | 28526821 (pubmed) | |
dc.identifier.uri | https://hdl.handle.net/10182/9098 | |
dc.language.iso | en | |
dc.publisher | Nature Publishing Group | |
dc.relation | The original publication is available from Nature Publishing Group - https://doi.org/10.1038/s41598-017-02278-y - http://dx.doi.org/10.1038/s41598-017-02278-y | |
dc.relation.isPartOf | Scientific Reports | |
dc.relation.uri | https://doi.org/10.1038/s41598-017-02278-y | |
dc.rights | © The Author(s) 2017 | |
dc.rights.ccname | Attribution | |
dc.rights.ccuri | https://creativecommons.org/licenses/by/4.0/ | |
dc.subject | N₂O | |
dc.subject | N₂ | |
dc.subject | nitrification | |
dc.subject | codenitrification | |
dc.subject | denitrification | |
dc.subject | nitrous oxide | |
dc.subject | soil | |
dc.subject | urea | |
dc.subject.anzsrc | ANZSRC::050304 Soil Chemistry (excl. Carbon Sequestration Science) | |
dc.subject.anzsrc | ANZSRC::0703 Crop and Pasture Production | |
dc.subject.anzsrc | ANZSRC::070303 Crop and Pasture Biochemistry and Physiology | |
dc.title | Influence of soil moisture on codenitrification fluxes from a urea-affected pasture soil | |
dc.type | Journal Article | |
lu.contributor.unit | LU | |
lu.contributor.unit | LU|Agriculture and Life Sciences | |
lu.contributor.unit | LU|Agriculture and Life Sciences|SOILS | |
lu.contributor.unit | LU|Research Management Office | |
lu.contributor.unit | LU|Research Management Office|OLD QE18 | |
lu.identifier.orcid | 0000-0002-5978-5274 | |
pubs.issue | 1 | |
pubs.notes | Article number: 2185 Date of acceptance: 10 Apr 2017 An Author Correction to this article was published on 07 March 2018 - it is available online at https://doi.org/10.1038/s41598-018-22645-7 | |
pubs.publication-status | Published | |
pubs.publisher-url | http://dx.doi.org/10.1038/s41598-017-02278-y | |
pubs.volume | 7 |
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