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Dune System Restoration in Osório Municipality (Rio Grande do Sul, Brazil): Good Practices Based on Coastal Management Legislation

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Beach Management Tools - Concepts, Methodologies and Case Studies

Part of the book series: Coastal Research Library ((COASTALRL,volume 24))

Abstract

Dune Management Plans are useful tools to integrate coastal development, dune conservation and even dune restoration. The environmental legislation of Rio Grande do Sul (South of Brasil) establishes a Permanent Preservation Area of 60-m minimum width that should be protected in the coastal dune systems. This study shows the implementation of a coastal management plan in Osório Municipality (N of Rio Grande do Sul) for the restoration of the foredune. The analysis of previous evolution (1997–2010) of the dune field showed widths lower than the legal requirement and decreasing in the last years. Then, a dune restoration plan was designed and implemented in 2011. The measures included the planned retreat of the road located back the foredune, channelization of the northern whashout’s mouth with a structure under the foredune, installation of sand fences and control of the pedestrian accesses to the beach by both a pathway and a footbridge. Finally, efficiency of the management plan was assessed by monitoring (2011–2016) the foredune evolution, which permitted to conclude a satisfactory result. Only the foredune sector close to the washout’ mouth did not achieve the expected minimum width, but it can be considered acceptable considering its higher sedimentary dynamics, the inherent difficulties of these structures and the short monitoring period from the implementation of the plan.

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Authors and Affiliations

  1. Research Group in Environmental Management and Sustainability, Faculty of Environmental Sciences, Universidad de la Costa, Barranquilla, Atlántico, Colombia

    Luana Portz & Rogério P. Manzolli

  2. Instituto Oceanográfico, Universidade de São Paulo, São Paulo, Brazil

    Javier Alcántara-Carrió

Authors
  1. Luana Portz
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  2. Rogério P. Manzolli
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  3. Javier Alcántara-Carrió
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Corresponding author

Correspondence to Luana Portz .

Editor information

Editors and Affiliations

  1. School of Law Universidad Sergio Arboleda, Santa Marta, Colombia

    Camilo M. Botero

  2. Facultad de Ciencias Marinas, University of Colima, Manzanillo, Colima, Mexico

    Omar Cervantes

  3. Coastal Education and Research Foundation (CERF), Fletcher, North Carolina, USA

    Charles W. Finkl

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Portz, L., Manzolli, R.P., Alcántara-Carrió, J. (2018). Dune System Restoration in Osório Municipality (Rio Grande do Sul, Brazil): Good Practices Based on Coastal Management Legislation. In: Botero, C., Cervantes, O., Finkl, C. (eds) Beach Management Tools - Concepts, Methodologies and Case Studies. Coastal Research Library, vol 24. Springer, Cham. https://doi.org/10.1007/978-3-319-58304-4_3

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