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Environmental Management

, Volume 44, Issue 2, pp 256–267 | Cite as

Cost-Effective Mitigation of Diffuse Pollution: Setting Criteria for River Basin Management at Multiple Locations

  • Mike Hutchins
  • Carlo Fezzi
  • Ian Bateman
  • Paulette Posen
  • Amelie Deflandre-Vlandas
Article

Abstract

A case study of the Yorkshire Derwent (UK) catchment is used to illustrate an integrated approach for assessing the viability of policy options for reducing diffuse nitrate losses to waterbodies. For a range of options, modeling methods for simulating river nitrate levels are combined with techniques for estimating the economic costs to agriculture of modifying those levels. By incorporating spatially explicit data and information on catchment residence times (which may span many decades particularly in areas of groundwater discharge) a method is developed for efficient spatial targeting of measures, for example, to the most at-risk freshwater environments. Combining hydrological and economic findings, the analysis reveals that, in terms of cost-effectiveness, the ranking of options is highly sensitive to both (i) whether or not specific stretches of river within a catchment are regarded as a priority for protection, and (ii) the criterion of nitrate concentration deemed most appropriate as an indicator of the health of the environment. Therefore, given the focus under European legislation upon ecological status of freshwaters, these conclusions highlight the need to improve understanding of mechanistic linkages between the chemical and biological dynamics of aquatic systems.

Keywords

Water framework directive Diffuse pollution Nitrate Cost-effectiveness 

Notes

Acknowledgments

For graphical output of water quality analysis, the authors are grateful for the assistance provided at CEH by Jemima Rance and Helen Davies. We also thank Colin Neal for his helpful comments. EDINA at Edinburgh University Data Library and Defra are acknowledged as the sources for the Agricultural Census data. The analysis undertaken in this article is stimulated in particular by the Catchment hydrology, Resources, Economics and Management (ChREAM) project, funded under the joint ESRC, BBSRC and NERC Rural Economy and Land Use (RELU) programme (award number RES-227-25-0024).

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Mike Hutchins
    • 1
  • Carlo Fezzi
    • 2
  • Ian Bateman
    • 2
  • Paulette Posen
    • 2
  • Amelie Deflandre-Vlandas
    • 1
  1. 1.Centre for Ecology and HydrologyWallingfordUK
  2. 2.School of Environmental SciencesUniversity of East AngliaNorwichUK

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