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dc.contributor.authorWu L
dc.contributor.authorRees RM
dc.contributor.authorTarsitano D
dc.contributor.authorZhang X
dc.contributor.authorJones SK
dc.contributor.authorWhitmore AP
dc.date.accessioned2015-05-29T09:36:07Z
dc.date.available2015-05-29T09:36:07Z
dc.date.issued2015
dc.identifier.citation530-531en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.scitotenv.2015.05.064
dc.identifier.urihttp://hdl.handle.net/11262/10769
dc.description.abstractNitrous oxide emitted to the atmosphere via the soil processes of nitrification and denitrification plays an important role in the greenhouse gas balance of the atmosphere and is involved in the destruction of stratospheric ozone. These processes are controlled by biological, physical and chemical factors such as growth and activity ofmicrobes, nitrogen availability, soil temperature and water availability. A comprehensive understanding of these processes embodied in an appropriate model can help develop agricultural mitigation strategies to reduce greenhouse gas emissions, and help with estimating emissions at landscape and regional scales. A detailed module to describe the denitrification and nitrification processes and nitrogenous gas emissions was incorporated into the SPACSYS model to replace an earlier module that used a simplified first-order equation to estimate denitrification and was unable to distinguish the emissions of individual nitrogenous gases. A dataset derived from a Scottish grassland experiment in silage production was used to validate soil moisture in the top 10 cm soil, cut biomass, nitrogen offtake and N2O emissions. The comparison between the simulated and observed data suggested that the new module can provide a good representation of these processes and improve prediction of N2O emissions. The model provides an opportunity to estimate gaseous N emissions under a wide range of management scenarios in agriculture, and synthesises our understanding of the interaction and regulation of the processes. © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY licenseen_US
dc.language.isoenen_US
dc.relation.isformatof14027en_US
dc.relation.ispartofScience of the Total Environmenten_US
dc.rightsCopyright © 2015 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-ncnd/ 4.0/).en
dc.subjectDenitrificationen_US
dc.subjectSPACSYSen_US
dc.subjectNitrogen cyclingen_US
dc.subjectSimulation modelen_US
dc.subjectNitrous oxideen_US
dc.subjectGrasslanden_US
dc.titleSimulation of nitrous oxide emissions at field scale using the SPACSYS modelen_US
dc.typeArticleen_US
dc.description.versionVersion of recorden
dc.extent.pageNumbers76en_US
dc.extent.pageNumbers86en_US


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