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Turnover of soil organic matter studied by high resolution and high sensitivity NMR at very high fields

Reference	D06462
Principal Investigator / Supervisor	Professor Edward W Randall
Co-Investigators / Co-Supervisors	Professor David Powlson
Institution	Queen Mary University of London
Department	Chemistry
Funding type	Research
Value (£)	85,668
Status	Completed
Type	Research Grant
Start date	01/11/1996
End date	01/11/1998
Duration	24 months

Abstract

High resolution and high sensitivity NMR in both solid and liquid states will be used to characterise the chemical forms of organic C, N and P, in whole soils and in physically separated fractions and in extracts. The overall aims are to identify the fractions of soil organic matter (SOM) which differ in availability towards microbial activity and to investigate mechanisms of SOM stabilisation. A specific aim will be to test the NMR 'visibility' hypothesis, namely that NMR visible components are in the most biologically labile pools. We shall track the fate of organic inputs in various pools of SOM. 15N labelled plant inputs will be used. The approach will be multidimensional and multinuclear, 13C, 1H, 31P, 15N mainly, including some 27Al work on the soil matrix. We shall study soils from long-term sites at Rothamstead and other long-term sites from all over the world.

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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