Jordan, Philip, Arnscheidt, Joerg, McGrogan, H. and McCormick, S. (2007) Characterising phosphorus transfers in rural catchments using a continuous bank-side analyser. HYDROLOGY AND EARTH SYSTEM SCIENCES, 11 (1). pp. 372-381. [Journal article]
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A six-month series of high-resolution synchronous stream discharge and total phosphorus (TP) concentration data is presented from a 5 km(2) agricultural catchment in the Lough Neagh basin, Northern Ireland. The data arc hourly averages of 10-minute measurements using a new bankside, automatic, continuous monitoring technology. Three TPtransfer `event-types' occur in this catchment: (1) chronic, storm independent transfers; (2) acute, storm dependent transfers; (3) acute, storm independent transfers. Event-type 2 transferred over 90% of the total 279 kg TP load in 39% of the total period; it corresponded to diffuse transfers from agricultural soils. Event-types 1 and 3, however, maintained the river in a highly eutrophic state between storm events and were characteristic of point source pollution, despite there being no major industrial or municipal point sources. Managing P transfers at the catchment scale requires a robust monitoring technology to differentiate between dynamic, multiple sources and associated event types and so enable a reliable assessment of the performance of mitigation measures, monitored at catchment outlets. The synchronous and continuous TP and discharge data series generated in this study demonstrate how this is possible.
|Item Type:||Journal article|
|Keywords:||total phosphorus; phosphorus; phosphorus transfers; continuous monitoring; Lough Neagh catchment|
|Faculties and Schools:||Faculty of Life and Health Sciences|
Faculty of Life and Health Sciences > School of Environmental Sciences
|Research Institutes and Groups:||Environmental Sciences Research Institute|
Environmental Sciences Research Institute > Freshwater Sciences
|Deposited By:||Professor Philip Jordan|
|Deposited On:||10 May 2011 12:59|
|Last Modified:||10 May 2011 12:59|
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