Calibrating and Evaluating the Phosphorus Indicators Tool (PIT)

Funder: DEFRA

Cost: £188k

Duration: 2001-2005

Project Overview
People and Institutions
Results and Applications
Publications
Latest Updates

Publications

Peer Reviewed

Brazier, R. E., Heathwaite, A. L. and Lui, S. (2005a) Scaling issues relating to phosphorus transfer from land to water in agricultural catchments. J. Hydrology 304: 330-342
Brazier, R. E., Heathwaite, A. L. and Liu, S. (2005b) An investigation into the inputs controlling predictions from the Phosphorus Indicators Tool (PIT). Science of the Total Environment 334(1-3), 211-223
Edwards, A. C., Heathwaite, A. L. and Dils, R. M. (2001) The Environmental and Economic Impacts of Diffuse Pollution in the UK: Nitrogen. In: Diffuse Pollution Impacts. B. J. D'Arcy, J. B. Ellis, R. C. Ferrier, A. Jenkins and R. M. Dils (Eds), CIWEM, Terence Dalton Publishers, UK, 61-71
Heathwaite, A. L. (2002) Empirical phosphorus export models. In: Kronvang, B. (Ed.) Diffuse Phosphorus Losses at the Catchment Scale. COST Action 832. Alterra, Wageningen, The Netherlands, 35-40
Heathwaite, A. L. and Dils, R. M. (2004) A risk assessment methodology for determining nutrient pressures on surface water bodies at the river basin scale. In: Littlewood, . and Neal, C. (Eds.) Managing our Aquatic Environment in the 21st Century. British Hydrological Society Occasional Paper, 14, 9-13
Heathwaite, A. L., Dils, R. M., Lui, S., Carvalho, L., Brazier, R. E., Pope, L., Hughes, M., Phillips, G. and May, L. (2005) A tiered risk-based approach for predicting diffuse and point source phosphorus losses in agricultural areas. Science of the Total Environment, 344 (1-3), 225-239.
Heathwaite, A. L., Sharpley, A. N., Beckmann, M and Rekolainen, S. (2005d) Assessing the risk of agricultural nonpoint source phosphorus pollution. In: Sims, J. T. and Sharpley, A. N. (Editors) Phosphorus: Agriculture and the Environment. American Society of Agronomy, Monograph No. 46, pp981-1020.

Interim Reports

Betson, M. and Lord, E. . (2003 Quantifying the effect of crop cover on HER and erosion at the annual timestep for PIT. Interim report to PIT Project Working Group, 3pp.
Heathwaite, A. L., Lui, S., Brazier, R. E., Johnes, P. J., Lord, E. ., Wood, G. and Betson, M. (2004) Interim report to Defra Project PE0112 Advisory Group: Calibrating and Evaluation the Phosphorus Indicators Tool (PIT), revised January 2004, 27pp.
Liu, S., Heathwaite, A. L. and Brazier, R. E. (2003) Interim report to PIT Project Working Group, 21pp;
Wood, G. and Owens, P. L. (2004) NSRI Report on PIT2 to Project Advisory Group. Interim report to PIT Project Working Group, 5pp.

Conference Proceedings

Heathwaite (2003) Diffuse sources of nutrients - our current knowledge. Implications of the WFD for Diffuse Sources of Pollution. Broads Research Advisory Panel, Norwich.
Heathwaite (2003) River basin water quality management. RGS-IBG Plenary, Royal Geographical Society, London.
Heathwaite (2003) Decision support frameworks for P loss at different scales. COST 832 Quantifying the Agricultural Contribution to Eutrophication, Cambridge.
Brazier, Heathwaite and Liu (2003) Implications of input data scaling predictions of P loss at the catchment scale. Geocomputation 2003, Southampton, 8 September.
Brazier, Heathwaite and Liu (2003) Use of the PIT to model diffuse P loss at the catchment scale. European Geophysical Society Nice, 21-26 April.