Suspended sediment in the Meghna estuary, Bangladesh, typically consists of fine to medium silt near water surface, silty sand at increasing depth, and sandy close bed. The behavior fine, cohesive a complex environment with multiple drivers, such as river tidal flows, is comparatively little understood because deposition erosion processes depend on many chemical, biological, physical factors. T...

Abstract Delta evolution in the context of no sediment discharge has become a global concern, and an accretion-to-erosion conversion is occurring Yangtze estuary. This could threaten Changjiang subaqueous delta development. Sediment erodibility important indicator vulnerability. However, present future remains unclear. In this study, 37 short cores were collected from delta, critical shear stre...

Equilibrium sediment transport is the condition of zero net entrainment and deposition by sediment-transporting flow (i.e. grade or regime). Here criteria for equilibrium transport, those used as proxies (for example, onset erosion, particle setting suppression turbulence) dilute, suspended-load-dominated, turbidity currents, are tested against laboratory natural data. The examined restricted t...

Researchers have independently documented the effects of land use on rivers and threats to river management institutions, but the relationship between changes in institutional context and river condition is not well described. This study assesses the connections between resource management institutions, land use, and rivers by integrating social science, geospatial analysis, and geomorphology. ...

Nereis diversicolor is a widely distributed estuarine polychaete worm that is particularly abundant in the mid to upper parts of estuaries. Laboratory annular flumes were used to study the effects of N. diversicolor density (0 [control], 100, 300, 1000, 3000 individuals m–2) on erodability of cohesive muddy sediments. At the highest densities (1000 and 3000 ind. m–2) there was evidence of activ...