Award details

Novel laboratory and field techniques to improve understanding of the denitrification process and enable the development of a new model

Reference	D11525
Principal Investigator / Supervisor	Professor David Scholefield
Co-Investigators / Co-Supervisors	Dr B Pain
Institution	Inst of Grassland and Environmental Res
Department	Soil Environmental and Ecological Sci
Funding type	Research
Value (£)	183,118
Status	Completed
Type	Research Grant
Start date	01/11/1999
End date	01/11/2002
Duration	36 months

Abstract

Denitrification contributes most of an estimated 137 kt a-1 of the greenhouse gas N20 emitted from UK soils, and also produces N2 to constitute a serious loss of N from agriculture. Denitrification controls have been identified using re-packed soils and it is still not possible to predict the emission of N20 and N2 in the field. A novel IGER technique can now be used to measure both fluxes simultaneously from intact field soils and has revealed the presence of hitherto unknown controls. The proposed study will advance understanding of denitrification by an investigation of the established and newly identified controls. This knowledge will be used to construct a new sub-model to predict N20 and N2 emissions under a range of environmental and grassland management conditions and, after field testing, will be used as a basis of a decision support system for reduced emissions.

Summary

unavailable

Committee	Closed Committee - Agri-food (AF)
Research Topics	X – not assigned to a current Research Topic
Research Priority	X – Research Priority information not available
Research Initiative	X - not in an Initiative
Funding Scheme	X – not Funded via a specific Funding Scheme

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