Assessing the potential impacts of a revised set of on-farm nutrient and sediment "basic" control measures for reducing agricultural diffuse pollution across England

A - Papers appearing in refereed journals

Collins, A. L., Newell Price, J. P., Zhang, Y., Gooday, R., Naden, P. S. and Skirvin, D. 2018. Assessing the potential impacts of a revised set of on-farm nutrient and sediment "basic" control measures for reducing agricultural diffuse pollution across England. Science of the Total Environment. 621, pp. 1499-1511.

AuthorsCollins, A. L., Newell Price, J. P., Zhang, Y., Gooday, R., Naden, P. S. and Skirvin, D.
Abstract

The need for improved abatement of agricultural diffuse water pollution represents cause for concern throughout
the world. A critical aspect in the design of on-farm intervention programmes concerns the potential technical
cost-effectiveness of packages of control measures. The European Union (EU) Water Framework Directive
(WFD) calls for Programmes of Measures (PoMs) to protect freshwater environments and these comprise ‘basic’
(mandatory) and ‘supplementary’ (incentivised) options. Recent work has used measure review, elicitation of
stakeholder attitudes and a process-basedmodelling framework to identify a newalternative set of ‘basic’ agricultural
sector control measures for nutrient and sediment abatement across England. Following an initial scientific
review of 708 measures, 90were identified for further consideration at an industryworkshop and 63 had industry
support. Optimisationmodelling was undertaken to identify a shortlist ofmeasures using the Demonstration Test
Catchments as sentinel agricultural landscapes. Optimisation selected 12 measures relevant to livestock or arable
systems. Model simulations of 95% implementation of these 12 candidate ‘basic’measures, in addition to businessas-
usual, suggested reductions in the national agricultural nitrate load of 2.5%, whilst corresponding reductions in
phosphorus and sediment were 11.9% and 5.6%, respectively. The total cost of applying the candidate ‘basic’ measures
across the whole of England was estimated to be £450 million per annum, which is equivalent to £52 per
hectare of agricultural land. This work contributed to a public consultation in 2016.

KeywordsControl measures; Costs; Efficacy; Nutrients; Sediment; Water Framework Directive
Year of Publication2018
JournalScience of the Total Environment
Journal citation621, pp. 1499-1511
Digital Object Identifier (DOI)doi:10.1016/j.scitotenv.2017.10.078
PubMed ID29054654
Open accessPublished as ‘gold’ (paid) open access
Funder project or codeWQ0223
FunderDepartment of Environment, Food and Rural Affairs
Publisher's versionCollins et al 2018 basic measures.pdf
Output statusPublished
Publication dates
Online18 Oct 2017
Publication process dates
Accepted09 Oct 2017
Copyright licenseCC BY
PublisherElsevier Science Bv
ISSN0048-9697

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