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This study aims to evaluate the impact of ecological submerged breakwaters on tidal flat sediment dynamics and coastal protection.

Regulation of Tidal Flat Sediment Dynamics by an Ecological Submerged Breakwater: Insights from the Northern Coast of the Sheyang River Estuary, Jiangsu, China

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This study aims to evaluate the impact of ecological submerged breakwaters on tidal flat sediment dynamics and coastal protection.
Conducted in situ measurements at inner (WN01) and outer (WN02) tidal flat locations near an ecological submerged breakwater in Jiangsu, China.
Monitored hydrodynamics, suspended sediment concentration, bed shear stress, and sediment transport over 14 days using Acoustic Doppler Velocimeters and wave-tide gauges.
Analyzed effects during normal weather and strong wave events.
Under normal conditions, the ecological submerged breakwater reduced wave height and shifted dominant bed shear stress, leading to sediment accretion on both sides.
During strong wave events, there was a significant increase in bed shear stress and suspended sediment concentration, causing net erosion despite previously accretive conditions.
Suspended sediment transport direction remained consistent inside the breakwater, while outside it shifted, illustrating effective wave anomaly isolation.

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Randomized trial examines sediment dynamics in tidal flats, indicating ecological breakwaters enhance coastal resilience.

Zhang et al. (2026) studied this question.

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