Managing erosion of mangrove-mud coasts with permeable dams – lessons learned

Autor: Joost Noordermeer, Femke H. Tonneijck, Alejandra Gijón Mancheño, Edward J. Anthony, Silke A.J. Tas, Tom Wilms, Kene Moseley, A.P. Oost, Els van Lavieren, Johan C. Winterwerp, Thorsten Albers, S. Naipal, Cherdvong Saengsupavanich, Daniel A. Friess, Bregje K. van Wesenbeeck, Pieter van Eijk, Abdul Muhari, Celine E.J. van Bijsterveldt
Přispěvatelé: Wetlands International [Pays-Bas], Delft University of Technology (TU Delft), Ostfalia University of Applied Sciences, Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Department of Geography, National University of Singapore (NUS), Mangrove Restoration and Management Department, National Agriculture Research & Extension Institute, Indonesian Ministry of Marine Affairs and Fisheries, Anton de Kom Universiteit van Suriname - Anton de Kom University of Suriname [Paramaribo] (UVS), Witteveen + Bos Raadgevende Ingenieurs, Deltares [The Netherlands], Faculty of International Maritime Studies, Kasetsart University (KU), Royal Netherlands Institute for Sea Research (NIOZ), Conservation International Suriname, Diponegoro University (UNDIP) Dutch Sustainable Water Fund German Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU) as part of the International Climate Initiative (IKI)
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Ecological Engineering
Ecological Engineering, 2020, 158, pp.106078. ⟨10.1016/j.ecoleng.2020.106078⟩
Ecological Engineering, 158
Ecological Engineering, Elsevier, 2020, 158, pp.106078. ⟨10.1016/j.ecoleng.2020.106078⟩
ISSN: 0925-8574
1872-6992
Popis: International audience; Mangrove-mud coasts across the world erode because of uninformed management, conversion of mangrove forests into aquaculture ponds, development of infrastructure and urbanization, and/or extraction of ground-water inducing land subsidence. The accompanied loss of ecosystem values, amongst which safety against flooding, has far reaching consequences for coastal communities, exacerbated by sea-level rise. To halt erosion various nature-based solutions have been implemented as an alternative to hard infrastructure sea defenses, including mangrove planting and erection of low-tech structures such as bamboo fences, permeable brushwood dams, etc. These structures have been designed on the basis of best-engineering practice, lacking sufficient scientific background. This paper investigates the use and success of permeable dams over a period of about 15 years, describing their application in Guyana, Indonesia, Suriname, Thailand and Vietnam, summarizing the lessons-learned, and analyzing their functioning in relation to the physical-biological coastal system. Also an overview of relevant costs is given.The basic philosophy behind the construction of permeable dams is the rehabilitation of mangrove habitat through re-establishment of the (fine) sediment dynamics - we refer to Building with Nature as the overarching principle of this approach. Our main conclusions are that a successful functioning of permeable dams requires (1) a thorough understanding of the physical-biological system and analysis of the relevant processes, (2) patience and persistence, including maintenance, as the natural time scales to rehabilitate mangrove green belts take years to decades, and (3) intensive stakeholder involvement. We give a list of conditions under which permeable dams may be successful, but in qualitative terms, as local site conditions largely govern their success or failure.
Databáze: OpenAIRE
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