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Potential increase in coastal wetland vulnerability to sea-level rise suggested by considering hydrodynamic attenuation effects

Author

Listed:
  • José F. Rodríguez

    (School of Engineering and Centre for Water Security and Environmental Sustainability, The University of Newcastle)

  • Patricia M. Saco

    (School of Engineering and Centre for Water Security and Environmental Sustainability, The University of Newcastle)

  • Steven Sandi

    (School of Engineering and Centre for Water Security and Environmental Sustainability, The University of Newcastle)

  • Neil Saintilan

    (Macquarie University)

  • Gerardo Riccardi

    (Department of Hydraulics and Research Council of National University of Rosario (CIUNR))

Abstract

The future of coastal wetlands and their ecological value depend on their capacity to adapt to the interacting effects of human impacts and sea-level rise. Even though extensive wetland loss due to submergence is a possible scenario, its magnitude is highly uncertain due to limited understanding of hydrodynamic and bio-geomorphic interactions over time. In particular, the effect of man-made drainage modifications on hydrodynamic attenuation and consequent wetland evolution is poorly understood. Predictions are further complicated by the presence of a number of vegetation types that change over time and also contribute to flow attenuation. Here, we show that flow attenuation affects wetland vegetation by modifying its wetting-drying regime and inundation depth, increasing its vulnerability to sea-level rise. Our simulations for an Australian subtropical wetland predict much faster wetland loss than commonly used models that do not consider flow attenuation.

Suggested Citation

  • José F. Rodríguez & Patricia M. Saco & Steven Sandi & Neil Saintilan & Gerardo Riccardi, 2017. "Potential increase in coastal wetland vulnerability to sea-level rise suggested by considering hydrodynamic attenuation effects," Nature Communications, Nature, vol. 8(1), pages 1-12, December.
  • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms16094
    DOI: 10.1038/ncomms16094
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    Cited by:

    1. Khojasteh, Danial & Lewis, Matthew & Tavakoli, Sasan & Farzadkhoo, Maryam & Felder, Stefan & Iglesias, Gregorio & Glamore, William, 2022. "Sea level rise will change estuarine tidal energy: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 156(C).
    2. Suresh, Kanesh & Khanal, Uttam & Wilson, Clevo, 2021. "Stakeholders’ use and preservation valuation of lagoon ecosystems," Economic Analysis and Policy, Elsevier, vol. 71(C), pages 123-137.

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