Show simple item record

dc.contributor.authorClough, T. J.
dc.contributor.authorMüller, C.
dc.contributor.authorLaughlin, R. J.
dc.description.abstractNitrous oxide (N2O) is a potent greenhouse gas and the dominant anthropogenic stratospheric ozone-depleting emission. The tropospheric concentration of N2O continues to increase, with animal production systems constituting the largest anthropogenic source. Stable isotopes of nitrogen (N) provide tools for constraining emission sources and, following the temporal dynamics of N2O, providing additional insight and unequivocal proof of N2O source, production pathways and consumption. The potential for using stable isotopes of N is underutilised. The intent of this article is to provide an overview of what these tools are and demonstrate where and how these tools could be applied to advance the mitigation of N2O emissions from animal production systems. Nitrogen inputs and outputs are dominated by fertiliser and excreta, respectively, both of which are substrates for N2O production. These substrates can be labelled with 15N to enable the substrate-N to be traced and linked to N2O emissions. Thus, the effects of changes to animal production systems to reduce feed-N wastage by animals and fertiliser wastage, aimed at N2O mitigation and/or improved animal or economic performance, can be traced. Further 15N-tracer studies are required to fully understand the dynamics and N2O fluxes associated with excreta, and the biological contribution to these fluxes. These data are also essential for the new generation of 15N models. Recent technique developments in isotopomer science along with stable isotope probing using multiple isotopes also offer exciting capability for addressing the N2O mitigation quest.en
dc.rightsIn Copyright*
dc.subjectclimate changeen
dc.subjectnitrogen isotopesen
dc.subjectnitrous oxideen
dc.titleUsing stable isotopes to follow excreta N dynamics and N2O emissions in animal production systemsen
local.affiliationiFZ Interdisziplinäres Forschungszentrum für Umweltsicherungde_DE
local.commentDieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich. This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
local.opus.instituteInstitut für Pflanzenökologiede_DE
local.opus.fachgebietIFZ Interdisziplinäres Forschungszentrum für Umweltsicherungde_DE
local.source.freetextAnimal (2013), 7:s2, pp 418-426, doi:10.1017/S1751731113000773de_DE

Files in this item


This item appears in the following Collection(s)

Show simple item record

In Copyright