Assessing multiple novel tracers to improve the understanding of the contribution of agricultural farm waste to diffuse water pollution

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dc.contributor.author Granger, S. J. -
dc.contributor.author Bol, R. -
dc.contributor.author Dixon, L. -
dc.contributor.author Naden, P. S. -
dc.contributor.author Old, G. H. -
dc.contributor.author Marsh, J. K. -
dc.contributor.author Bilotta, G. -
dc.contributor.author Brazier, R. -
dc.contributor.author White, S. M. -
dc.contributor.author Haygarth, P. M. -
dc.date.accessioned 2012-12-11T23:01:27Z
dc.date.available 2012-12-11T23:01:27Z
dc.date.issued 2010-12-31T00:00:00Z -
dc.identifier.issn 1464-0325 -
dc.identifier.uri http://dx.doi.org/10.1039/b915929k -
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/6822
dc.description.abstract A study was undertaken on drained and undrained 1 ha grassland lysimeters to assess the effectiveness of multiple novel tracing techniques in understanding how agricultural slurry waste moves from land to water. Artificial fluorescent particles designed to mimic the size and density of organic slurry particles were found to move off the grassland via inter-flow (surface + lateral through-flow) and drain-flow. Where both pathways were present the drains carried the greater number of particles. The results of the natural fluorescence and delta C-13 of water samples were inconclusive. Natural fluorescence was higher from slurry-amended lysimeters than from zero-slurry lysimeters, however, a fluorescence decay experiment suggested that no slurry signal should be present given the time between slurry application and the onset of drainage. The delta C-13 values of >0.7 mm and <0.7 mm material in drainage were varied and unrelated to discharge. The mean value of >0.7 mm delta C-13 in water from the drain-flow pathways was higher from the lysimeter which had received naturally enriched maize slurry compared to the lysimeter which received grass slurry indicating a contribution of slurry-derived material. Values of <0.7 mm delta C-13 from the same pathway, however, produced counter intuitive trends and may indicate that different fractions of the slurry have different delta C-13 values. en_UK
dc.language.iso en_UK -
dc.subject natural-abundance measurements temperate grassland soil particle-size fractions dung-derived carbon organic-matter c-13 abundance clay soil phosphorus sediment drainage en_UK
dc.title Assessing multiple novel tracers to improve the understanding of the contribution of agricultural farm waste to diffuse water pollution en_UK
dc.type Article -


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