Journal article

A suburban sediment budget: Coarse-grained sediment flux through hillslopes, stormwater systems and streams

Kathryn L Russell, Geoff J Vietz, Tim D Fletcher

Earth Surface Processes and Landforms | Wiley | Published : 2019


Sediment in urban stormwater systems creates a significant maintenance burden, while a lack of coarse‐grained bed sediment in streams limits their ecological value and geomorphic resilience. Gravel substrates, for example, provide benthic habitat yet are often scoured from the channel bed only to end up in a detention basin or treatment wetland. This dual problem of both ‘too much’ and ‘too little’ coarse‐grained sediment reflects a watershed sediment budget that is profoundly altered. We developed a conceptual urban coarse‐grained (>0.5 mm) sediment budget across three domains: hillslopes (urban land surfaces), the built stormwater network and stream channels. We then quantified key sources..

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Awarded by Australian Research Council

Funding Acknowledgements

This work was funded by an Australian Government Research Training Program scholarship and Melbourne Water through the Melbourne Waterway Research Practice Partnership ( Fletcher was supported by the Australian Research Council (FT100100144) during part of this study. The funding sources had no direct involvement in the study.