Spatial trends on an ungrazed West Cumbrian saltmarsh of surface contamination by selected radionuclides over a 25 year period

Caborn, Jane A.; Howard, B.J.; Blowers, Paul; Wright, S.M.

doi:10.1016/j.jenvrad.2015.09.011

Cited by 5 publications

(1 citation statement)

References 30 publications

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“…The potential of salt marshes to trap fine sediments, and consequently particle-bound pollutants, is especially relevant when dealing with highly contaminated waters coming from industrial and agricultural discharges (Ullrich et al 2001;Soto-Jiménez and Páez-Osuna 2010;Wallschläger et al 2000;Caborn et al 2016;Fay and Knight 2016). Nutrient-rich waters…”

Section: Introductionmentioning

confidence: 99%

Modelling the Transport and Export of Sediments in Macrotidal Estuaries with Eroding Salt Marsh

Plater

Leonardi

2018

Estuaries and Coasts

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A process-based numerical model is applied to investigate sediment transport dynamics and sediment budget in tide-dominated estuaries under different salt marsh erosion scenarios. Using a typical funnel-shaped estuary (Ribble Estuary, UK) as a study site, it is found that the remobilization of sediments within the estuary is increased as a result of the tidal inundation of the eroded salt marsh. The landward export of the finest sediment is also intensified. The relationship between salt marsh erosion and net landward export of sediments has been found to be non-linear-with the first 30% salt marsh erosion causing most of the predicted export. The presence of vegetation also influences the sediment budget. Results suggest that vegetation reduces the amount of sediment being transported upstream. Again, the trapping effect of salt marsh in terms of plant density is non-linear. Whilst a vegetated surface with a stem density of 64 plants/m 2 decreased the net landward export of very fine sand by around 50%, a further increase in stem density from 64 to 512 plants/m 2 had a relatively small effect.

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