Award details

Carbon and nitrogen transformations in soils

Reference	BBS/E/C/00004169
Principal Investigator / Supervisor	Professor Keith Goulding
Co-Investigators / Co-Supervisors
Institution	Rothamsted Research
Department	Rothamsted Research Department
Funding type	Research
Value (£)	960,728
Status	Completed
Type	Institute Project
Start date	01/04/1999
End date	31/03/2007
Duration	96 months

Abstract

The cycling of carbon and nitrogen in soils controls both the availability of nitrogen to crop plants and semi-natural vegetation and the losses of nitrogen to the environment. Recent developments in techniques have opened up new opportunities for research in these areas. This project applies new techniques in soil organic matter analysis and stable isotope tracers to measuring and modelling the pools of nitrogen and carbon in soils. It aims to obtain a better understanding of the transformation processes that cycle N and C around soil systems and the intricate links between N and C. Objectives 1. To develop and use physical fractionation techniques to separate soil organic matter into measurable, meaningful and modellable pools in soil. 2. To use the stable isotopes 13C and 15N at both natural abundance and enriched levels (by labelling) to study measure the key pools and transfer processes of C and N, especially mineralisation, nitrification and immobilisation. 3. To construct new, mechanistic models to describe these processes.

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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