Ian Alistair Thomas1, Philip Jordan2, Oliver Shine3, Owen Fenton4, Per-Erik Mellander4, Paul Dunlop5 and Paul N.C. Murphy6, (1)Agriculture & Food Science, Room 127, University College Dublin, Dublin, IRELAND, (2)School of Environmental Sciences, University of Ulster, Coleraine, Northern Ireland, (3)Agricultural Catchments Programme, Teagasc, Wexford, Ireland, (4)Teagasc, Wexford, Ireland, (5)School of Geography and Environmental Sciences, Ulster University, Coleraine, Northern Ireland, (6)Environment and Sustainable Resource Management Section, University College Dublin, Dublin, Ireland