The Irish Agricultural Catchments Programme: catchment selection using spatial multi‐criteria decision analysis

The Nitrates Directive is a European Union legislative framework for managing agricultural nutrient transfers from land to water and, in the Republic of Ireland, is the main Programme of Measures for agriculture in the Water Framework Directive regulations. As part of the requirement for evaluating the Nitrates Directive National Action Programme and an associated derogation for intensive grassland farming, Ireland is monitoring environmental and economic effectiveness at the catchment scale. The selection of representative catchments has been undertaken using national spatial datasets in a Geographical Information System and a multi‐criteria decision analysis (MCDA) framework from over 1500 possible candidates. This ranked catchments (4–12 km2) in terms of maximizing agricultural landuse and intensity, and defining areas of predominantly grassland and arable enterprises. Catchments were also ranked according to potential phosphorus and/or nitrogen transfer risk using metrics of surface and sub‐surface flow path susceptibility, respectively. A selection of four catchments has been augmented with a grassland catchment in a karst landscape that used individual MCDA data layers to define suitability. Some validation of the nutrient transfer risk from each catchment is presented from high resolution water quality data.

[1]  N. Holden,et al.  Assessing the potential for the occurrence and character of preferential flow in three Irish grassland soils using image analysis , 2009 .

[2]  H. Jarvie,et al.  Characterization of phosphorus sources in rural watersheds. , 2009, Journal of environmental quality.

[3]  L. Bergström,et al.  Evaluating the success of phosphorus management from field to watershed. , 2009, Journal of environmental quality.

[4]  David M Wolock,et al.  Identifying pathways and processes affecting nitrate and orthophosphate inputs to streams in agricultural watersheds. , 2009, Journal of environmental quality.

[5]  T. Burt,et al.  The effectiveness of nitrate vulnerable zones for limiting surface water nitrate concentrations - the failure of nutrient input management. , 2009 .

[6]  R. Graziano,et al.  A rapid and cost-effective tool for managing habitats of the European Natura 2000 network: a case study in the Italian Alps , 2009, Biodiversity and Conservation.

[7]  D. Moran,et al.  The scope for regulatory incentives to encourage increased efficiency of input use by farmers. , 2009, Journal of environmental management.

[8]  Vanessa Madrucci,et al.  Groundwater favorability map using GIS multicriteria data analysis on crystalline terrain, Sào Paulo State, Brazil , 2008 .

[9]  Sabine Grunwald,et al.  Temporal trajectories of phosphorus and pedo-patterns mapped in Water Conservation Area 2, Everglades, Florida, USA , 2008 .

[10]  J. Humphreys.  Nutrient issues on Irish farms and solutions to lower losses , 2008 .

[11]  D. Drew.  Hydrogeology of lowland karst in Ireland , 2008, Quarterly Journal of Engineering Geology and Hydrogeology.

[12]  Paul J Worsfold,et al.  Nitrogen cycling in natural waters using in situ, reagentless UV spectrophotometry with simultaneous determination of nitrate and nitrite. , 2007, Environmental science & technology.

[13]  C. Watson,et al.  Increase in phosphorus losses from grassland in response to Olsen-P accumulation. , 2007, Journal of environmental quality.

[14]  J. Sims,et al.  Defining the sources of low-flow phosphorus transfers in complex catchments. , 2007, The Science of the total environment.

[15]  Philip Jordan,et al.  Characterising phosphorus transfers in rural catchments using a continuous bank-side analyser , 2007 .

[16]  Jacek Malczewski,et al.  GIS‐based multicriteria decision analysis: a survey of the literature , 2006, Int. J. Geogr. Inf. Sci..

[17]  Stuart N. Lane,et al.  Surveillant Science: Challenges for the Management of Rural Environments Emerging from the New Generation Diffuse Pollution Models , 2006 .

[18]  N Voulvoulis,et al.  The Appropriateness of Multicriteria Analysis in Environmental Decision-Making Problems , 2005, Environmental technology.

[19]  B L Turner,et al.  The phosphorus transfer continuum: linking source to impact with an interdisciplinary and multi-scaled approach. , 2005, The Science of the total environment.

[20]  G. Kiely,et al.  Patterns and processes of phosphorus transfer from Irish grassland soils to rivers—integration of laboratory and catchment studies , 2005 .

[21]  V. Jansons,et al.  Catchment and drainage field nitrogen balances and nitrogen loss in three agriculturally influenced Latvian watersheds , 2003 .

[22]  Karen Daly,et al.  The effect of soil type on phosphorus sorption capacity and desorption dynamics in Irish grassland soils , 2001 .

[23]  G. Kiely,et al.  Quantification of phosphorus loss from soil to water. , 2000 .

[24]  Hong Jiang,et al.  Application of fuzzy measures in multi-criteria evaluation in GIS , 2000, Int. J. Geogr. Inf. Sci..

[25]  V. M. Chowdary,et al.  Delineation of groundwater recharge zones and identification of artificial recharge sites in West Medinipur district, West Bengal, using RS, GIS and MCDM techniques , 2009 .

[26]  Rogier P.O. Schulte,et al.  MAJOR AND MICRO NUTRIENT ADVICE FOR PRODUCTIVE AGRICULTURAL CROPS , 2008 .

[27]  R. Monaghan,et al.  Linkages between land management activities and water quality in an intensively farmed catchment in southern New Zealand , 2007 .