Sediment Deposition and Accretion Rates in Tidal Marshes Are Highly Variable Along Estuarine Salinity and Flooding Gradients

2014 ◽  
Vol 38 (2) ◽  
pp. 434-450 ◽  
Author(s):  
C. Butzeck ◽  
A. Eschenbach ◽  
A. Gröngröft ◽  
K. Hansen ◽  
S. Nolte ◽  
...  
Keyword(s):  
Sediment Deposition ◽  
Tidal Marshes ◽  
Accretion Rates ◽  
Estuarine Salinity

scholarly journals Does livestock grazing affect sediment deposition and accretion rates in salt marshes?

2013 ◽  
Vol 135 ◽  
pp. 296-305 ◽  
Author(s):  
Stefanie Nolte ◽  
Frauke Müller ◽  
Mark Schuerch ◽  
Antonia Wanner ◽  
Peter Esselink ◽  
...  
Keyword(s):  
Salt Marshes ◽  
Sediment Deposition ◽  
Livestock Grazing ◽  
Accretion Rates

scholarly journals SEDIMENTATION PROBLEMS AT OFFSHORE DREDGED CHANNELS

1976 ◽  
Vol 1 (15) ◽  
pp. 101
Author(s):  
A.A. Kadib
Keyword(s):  
Sediment Transport ◽  
Sediment Deposition ◽  
Simple Method ◽  
Submerged Breakwater ◽  
The Past ◽  
Current Action ◽  
Challenging Tasks ◽  
Accretion Rates ◽  
Sediment Flow ◽  
Maintenance Dredging

Estimating the rate of sediment deposition and annual maintenance dredging at offshore dredged channels have been two of the most challenging tasks confronting coastal engineers in the past 10 to 15 years. Because of the complexity of the mechanism of sediment-flow interaction and the lack of available practical methods for estimating the sediment transport rate under waves and current action, it is felt that a simple and rational method is needed for describing sediment behavior at offshore dredged channels and estimating accretion rates. It is hoped that this paper contributes to the answer of this problem. The paper describes the mechanism of sediment deposition and presents a simple method for estimating the rate of annual maintenance dredging. The effect of using a submerged breakwater for relieving the sedimentation problem within the dredged channel is also presented.

Effects of long-term grazing on sediment deposition and salt-marsh accretion rates

2013 ◽  
Vol 133 ◽  
pp. 109-115 ◽  
Author(s):  
Kelly Elschot ◽  
Tjeerd J. Bouma ◽  
Stijn Temmerman ◽  
Jan P. Bakker
Keyword(s):  
Salt Marsh ◽  
Sediment Deposition ◽  
Accretion Rates ◽  
Marsh Accretion

scholarly journals Tidal marsh restoration enhances sediment accretion and carbon accumulation in the Stillaguamish River estuary, Washington

PLoS ONE ◽  
2021 ◽  
Vol 16 (9) ◽  
pp. e0257244
Author(s):  
Katrina L. Poppe ◽  
John M. Rybczyk
Keyword(s):  
Pacific Northwest ◽  
Puget Sound ◽  
River Estuary ◽  
Carbon Stocks ◽  
Carbon Accumulation ◽  
Tidal Marshes ◽  
Accumulation Rates ◽  
Sea Levels ◽  
Accretion Rates ◽  
Rising Sea Levels

Tidal marshes have been recognized globally for their ability to sequester “blue carbon” but there is still a need for studies investigating the marsh response to restoration, particularly in the Pacific Northwest United States. Here we report carbon stocks and accumulation rates for restored and natural tidal marshes in the Stillaguamish River estuary in Puget Sound, Washington, where a 60-hectare marsh was reintroduced to the tidal regime from its previous use as diked and drained farmland. We found that the restoration not only maximized carbon accumulation but also enhanced resilience to rising sea levels. Four years after restoration, mean sediment carbon stocks in the upper 30 cm within the restored marsh (4.43 kg C m-2) were slightly lower than those measured in the adjacent natural marshes (5.95 kg C m-2). Mean carbon accumulation rates, however, were nearly twice as high in the restored marsh (230.49 g C m-2 yr-1) compared to the natural marshes (123.00 g C m-2 yr-1) due to high rates of accretion in the restored marsh (1.57 cm yr-1). Mean elevation change rates were nearly twice that of corresponding 210Pb accretion rates, but all were greater than the current rate of sea level rise.

Comparison of Sediment Deposition in Reservoirs of Four Kansas Watersheds

Fact Sheet ◽  
2000 ◽  
Author(s):  
David P. Mau ◽  
Victoria G. Christensen
Keyword(s):  
Sediment Deposition
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