University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Mitigating diffuse phosphorus transfer from agriculture according to cost and efficiency.

Haygarth, PM, Apsimon, H, Betson, M, Harris, D, Hodgkinson, R and Withers, PJ (2009) Mitigating diffuse phosphorus transfer from agriculture according to cost and efficiency. J Environ Qual, 38 (5). pp. 2012-2022.

Full text not available from this repository.

Abstract

Potential options for mitigating phosphorus (P) transfer from agriculture to water in England and Wales (E&W) were collated across a range of farm systems to assess their potential effectiveness in reducing mass of P transferred and potential cost (pounds sterling [ pound]) to the farming industry. A simple model framework (called PEASE) incorporating a number of assumptions was used to identify 15 methods for mitigating inputs of P to agricultural systems, 19 methods for preventing mobilization of P, and six methods for controlling the transport of P to streams. The scope for largest reductions in P inputs was to grassland and horticulture. Potential reductions in P mobilization were up to 1.2 kg P ha(-1). Reductions in P transfer associated with transport mitigation were larger than those associated with input and mobilization methods (up to 2.2 kg P ha(-1)). The largest estimated reductions were achieved by installing buffer zones and constructed wetlands, the former being very cost effective ( pound3-5 kg(-1) P saved). Plots of cost curves helped identify where the combined and cumulative P transfer reductions were attainable; these were approximately 0.2 kg ha(-1) for uplands, 0.6 kg ha(-1) for outdoor pigs, 0.9 kg ha(-1) for intensive dairy, and 2.2 kg ha(-1) for arable examples. We concluded that established catchment-scale evidence for mitigation is sparse, especially for specific farm systems in E&W. Sensitivities and uncertainties in the approach, especially associated with expert coefficients, are noted. This approach is nonetheless considered useful for prioritizing where and how best options might be most effectively targeted for least cost but greatest benefit.

Item Type: Article
Authors :
NameEmailORCID
Haygarth, PMUNSPECIFIEDUNSPECIFIED
Apsimon, HUNSPECIFIEDUNSPECIFIED
Betson, Mm.betson@surrey.ac.ukUNSPECIFIED
Harris, DUNSPECIFIEDUNSPECIFIED
Hodgkinson, RUNSPECIFIEDUNSPECIFIED
Withers, PJUNSPECIFIEDUNSPECIFIED
Date : September 2009
Identification Number : 10.2134/jeq2008.0102
Uncontrolled Keywords : Agriculture, Costs and Cost Analysis, Environmental Restoration and Remediation, Phosphorus, Water Pollutants, Chemical, Water Pollution, Chemical, Wetlands
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 10:33
Last Modified : 17 May 2017 14:50
URI: http://epubs.surrey.ac.uk/id/eprint/828290

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800