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  • Ecological risks and opportunities from engineered artificial flooding as a means of achieving environmental flow objectives

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    Author(s)
    Bond, Nick
    Costelloe, Justin
    King, Alison
    Warfe, Danielle
    Reich, Paul
    Balcombe, Stephen
    Griffith University Author(s)
    Balcombe, Stephen R.
    Bond, Nick R.
    Year published
    2014
    Metadata
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    Abstract
    Restoration of floodplain ecosystems through the reinstatement of floods is often hampered by insufficient water as a result of competing human demands. An emerging alternative approach relies on floodplain infrastructure - such as levees, weirs, regulators, and pumps - to control water levels within floodplains without requiring landscape-scale overbank floods. This technique, albeit water efficient and capable of achieving some ecological targets, does not mimic the hydraulics, hydrodynamics, and lateral connectivity of natural floods. Engineering approaches like this may risk detrimental ecological outcomes, including ...
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    Restoration of floodplain ecosystems through the reinstatement of floods is often hampered by insufficient water as a result of competing human demands. An emerging alternative approach relies on floodplain infrastructure - such as levees, weirs, regulators, and pumps - to control water levels within floodplains without requiring landscape-scale overbank floods. This technique, albeit water efficient and capable of achieving some ecological targets, does not mimic the hydraulics, hydrodynamics, and lateral connectivity of natural floods. Engineering approaches like this may risk detrimental ecological outcomes, including reductions in biotic connectivity, river-floodplain productivity, and water quality, and thus may fail to support the range of ecological processes required to sustain healthy river-floodplain systems. Here, we review the potential benefits, risks, and mitigation options associated with engineered artificial flooding. Given the growing challenge of equitable water allocation, further research on and monitoring of engineered floods as a tool to sustain floodplain ecosystems are urgently required.
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    Journal Title
    Frontiers in Ecology and the Environment
    Volume
    12
    Issue
    7
    DOI
    https://doi.org/10.1890/130259
    Copyright Statement
    © 2014 Ecological Society of America. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
    Subject
    Freshwater Ecology
    Publication URI
    http://hdl.handle.net/10072/64144
    Collection
    • Journal articles

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