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  • A sediment budget for the Herbert River Catchment, North Queensland, Australia

    Author(s)
    Bartley, Rebecca
    Olley, Jon
    Henderson, Anne
    Griffith University Author(s)
    Olley, Jon M.
    Year published
    2004
    Metadata
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    Abstract
    A combination of spatial modelling, sediment tracing techniques and water-quality data were used to determine the major source of fine sediments in the Herbert River catchment, Queensland, Australia. Using modelling, hillslope erosion was predicted to be the dominant source of sediment, contributing 52% of the total sediment load at the estuary. Gully and stream bank erosion contributed equal loads to the estuary (~24%). The 137Cs concentrations measured in this study support the modelled predictions for contributions from different land uses. Results from modelling and sediment tracing also predicted similar ratios of ...
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    A combination of spatial modelling, sediment tracing techniques and water-quality data were used to determine the major source of fine sediments in the Herbert River catchment, Queensland, Australia. Using modelling, hillslope erosion was predicted to be the dominant source of sediment, contributing 52% of the total sediment load at the estuary. Gully and stream bank erosion contributed equal loads to the estuary (~24%). The 137Cs concentrations measured in this study support the modelled predictions for contributions from different land uses. Results from modelling and sediment tracing also predicted similar ratios of hillslope to channel erosion. The total suspended sediment loads predicted for the downstream freshwater limit of the catchment are within 10% of longer term measured values. These results suggest that the modelling approach used in this study is useful for determining sediment budgets for large tropical catchments.
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    Conference Title
    Sediment Transfer through the Fluvial System
    Volume
    288
    Publisher URI
    http://books.google.com.au/
    Subject
    Geomorphology and Regolith and Landscape Evolution
    Publication URI
    http://hdl.handle.net/10072/28170
    Collection
    • Conference outputs

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