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- EP42B-02: Modeling linkages between floodplain sediment transport processes and post-disturbance sediment pulses
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NOLA CC
Author(s):Generic 'disconnected' Message
Tanya Shukla, Oregon State University (First Author, Presenting Author)
Desiree Tullos, Oregon State University
Rebecca Flitcroft, PNW Research Station
Mary Santelmann, Oregon State University
Stephen Lancaster, Oregon State University
Wildfires and other changing conditions can dramatically increase the amount of sediment delivered to rivers. Under extreme conditions, this sediment can degrade surface water quality, harming aquatic organisms, habitat, and drinking water supply systems. Floodplains, low lying areas next to rivers that accommodate surplus river water during floods, may offer opportunities to temporarily store part of the large sediment loads and help mitigate river water quality. However, floodplains are more complex than sedimentation basins, and it is unclear how much sediment they can actually trap. This work estimates how much water and sediment can enter a river with varying severity of wildfire and flooding. These water and sediment amounts are then used in numerical models to estimate how much of the sediment can be trapped. Research of this kind explores the degree to which natural, functioning river systems can provide human and environmental benefits without the need for artificial modifications like concrete lined storage basins.
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