Managing Water Quality in Agricultural Catchments
Burt, T. P. and Johnes, P. (1997) Managing Water Quality in Agricultural Catchments. Transactions of the Institute of British Geographers, 22. pp. 61-68. ISSN 0020-2754
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Until recently, pollution control in rural drainage basins of the UK consisted solely of water treatment at the point of abstraction. However, prevention of agricultural pollution at source is now a realistic option given the possibility of financing the necessary changes in land use through modification of the Common Agricultural Policy. This paper uses a nutrient export coefficient model to examine the cost of land-use change in relation to improvement of water quality. Catchment-wide schemes and local protection measures are considered. Modelling results underline the need for integrated management of entire drainage basins. A wide range of benefits may accrue from land-use change, including enhanced habitats for wildlife as well as better drinking water.