Depositional and erosional behaviour of cohesive sediments in estuarine saltmarsh and mudflat environments
Rounce, J.; Manning, A.J.; Yu, X.; Parsons, D.; Peakall, J.; Ye, L. (2025). Depositional and erosional behaviour of cohesive sediments in estuarine saltmarsh and mudflat environments, in: Manning, A.J. (Ed.) Estuary research - recent advances. pp. 1-24. https://dx.doi.org/10.5772/intechopen.115155
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| Keywords |
Cohesive sediment
Deposition
Erosion
Stability > Sediment properties > Sediment stability
Transport > Sediment transport
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| Author keywords |
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| Authors | | Top |
- Rounce, J.
- Manning, A.J.
- Yu, X.
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- Parsons, D.
- Peakall, J.
- Ye, L.
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| Abstract |
Management of aquatic environments relies on the accurate prediction of sediment transport via numerical models. Knowledge of erosional and depositional behaviours in the muddy sediments dominating these environments is therefore required. Erosional and depositional characteristics are complicated due to cohesive sediment processes, influenced by biophysical properties. To enhance the understanding of interactive processes within cohesive sediments from various aquatic environments, this study collated and analysed sedimentary datasets representative of differing dynamical regimes. Sediment stability in intertidal sediments was investigated using data collected during the CBESS (Coastal Biodiversity and Ecosystem Service Sustainability) programme. The CBESS project collected landscape-scale field measurements investigating patterns between biodiversity and ecosystem service flows in coastal wetlands. In CBESS samples from Essex (SE England) and Morecambe Bay (NW England), the highest stability was observed in saltmarsh samples. Significant differences are demonstrated in sediment stability across sites, habitats (saltmarsh/mudflat), and seasons (summer/winter). This chapter provides an extensive background literature review and analysis of sediment characteristics in mudflat and saltmarsh habitats. Analysis of secondary field data explores the variation in erosional properties across varying dynamics and sediment compositions. |
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