Associations between channel morphology and large woody debris in a lowland river

Victor Hughes, Martin Thoms

    Research output: A Conference proceeding or a Chapter in BookConference contribution

    9 Citations (Scopus)

    Abstract

    Associations between channel morphology and the distribution and
    character of large woody debris (LWD) within a 95-km reach of the River
    Murray, Australia were examined at different scales. At the reach scale there
    was a uniform pattern of LWD distribution along the river. Most LWD was
    associated with eroding sites, close to the bank and aligned at 90° or less to the
    flow. At the sub-reach scale (0.5–1.5 km) strong associations were found
    between the curvature of the river channel and LWD distribution. Distribution
    patterns at this scale suggest that LWD is mainly recruited by bank erosion
    and falls into the river perpendicular to the flow. It subsequently remains close
    to where it falls and is realigned rather than actively moved by the river.
    Within meander bends there was twice as much LWD along the outer bank as
    there was along the inner bank, and while the amount on the inner bank
    declined with increasing distance into the bend the reverse was true for the
    outer bank.
    Original languageEnglish
    Title of host publicationThe Structure, Function and Management Implications of Fluvial Sedimentary Systems
    Subtitle of host publicationProceedings of an international symposium held al Alice Springs, Australia, September 2002. IAHS Publ. no. 276, 2002
    EditorsFiona J. Dyer, Martin C. Thoms, Jon M. Olley
    Place of PublicationOxfordshire
    PublisherIAHS Press
    Pages11-18
    Number of pages8
    Volume276
    ISBN (Print)9781901502961
    Publication statusPublished - 2002
    EventInternational Symposium on the Structure, Function and Management Implications of Fluvial Sedimentary Systems - Alice Springs, Alice Springs, Australia
    Duration: 2 Sep 20026 Sep 2002

    Conference

    ConferenceInternational Symposium on the Structure, Function and Management Implications of Fluvial Sedimentary Systems
    CountryAustralia
    CityAlice Springs
    Period2/09/026/09/02

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    Cite this

    Hughes, V., & Thoms, M. (2002). Associations between channel morphology and large woody debris in a lowland river. In F. J. Dyer, M. C. Thoms, & J. M. Olley (Eds.), The Structure, Function and Management Implications of Fluvial Sedimentary Systems: Proceedings of an international symposium held al Alice Springs, Australia, September 2002. IAHS Publ. no. 276, 2002 (Vol. 276, pp. 11-18). Oxfordshire: IAHS Press.