This manuscript analyzes and discusses viewpoints concerning the renaturalization of floodplains as an instrument of management in large catchments, using natural flood defense schemes. Schemes consider the differentiated supply of ecosystemic services based on river channel/floodplain interactions. Conventional structural methods used to prevent flooding (e.g., longitudinal dikes) are increasingly showing themselves to be less efficient with regard to advances in the problems of environmental management of the territory, especially when combined with extreme events, where the importance of perfecting strategies for harmonizing duly controlled floodable areas and water retention can be seen. Natural flood risk reduction measures are part of a holistic solution for sustainable management of flood risk, conservation of nature, water quality and green economy. They rely upon the inherent ability of floodplains to retain water in the basin, and this can delay and reduce peak flows.
References
[1]
Baptista, M.N., Valcarcel, R., Maya, V. and Canto, F. (2014) Selection of Preferred Floodplains for the Renaturalization of Hydrologic Functions: A Case Study of the Paraíba do Sul River Basin, Brazil. Water Resources Management, 28, 4781-4793.
https://doi.org/10.1007/s11269-014-0775-z
[2]
Bino, G., Wassens, S., Kingsford, R.T., Thomas, R.F. and Spencer, J. (2017) Floodplain Ecosystem Dynamics under Extreme Dry and Wet Phases in Semi-Arid Australia. Freshwater Biology, 63, 224-241. https://doi.org/10.1111/fwb.13056
[3]
Schindler, S., O’Neill, F.H., Biro, M., Damm, C., Gasso, V., Kanka, R., Sluis, T.V., Krug, A., Lauwaars, S.G., Sebesvari, Z., Pusch, M., Baranovsky, B., Ehlert, T., Neukirchen, B., Martin, J.R., Euller, K., Mauerhofer, V. and Wrbka, T. (2016) Multifunctional Floodplain Management and Biodiversity Effects: A Knowledge Synthesis for Six European Countries. Biodiversity and Conservation, 25, 1349-1382.
https://doi.org/10.1007/s10531-016-1129-3
[4]
Schober, B., Hauer, C. and Habersack, H. (2015) A Novel Assessment of the Role of Danube Floodplains in Flood Hazard Reduction (FEM Method). Natural Hazards, 75, 33-50. https://doi.org/10.1007/s11069-013-0880-y
[5]
Russi, D., Brink, P., Farmer, A., Badura, T., Coates, D., F?rster, J., Kumar, R. and Davidson, N. (2013) The Economics of Ecosystems and Biodiversity (TEEB) for Water and Wetlands. IEEP, Ramsar Secretariat Gland, London and Brussels.
[6]
Lockaby, B.G. (2009) Floodplain Ecosystems of the Southeast: Linkages between Forests and People. Wetlands, 29, 407-412. https://doi.org/10.1672/08-44.1
[7]
Jung, H.C., Alsdorf, D., Moritz, M., Lee, H. and Vassolo, S. (2011) Analysis of the Relationship between Flooding Area and Water Height in the Logone Floodplain. Physics and Chemistry of the Earth, 36, 232-240.
https://doi.org/10.1016/j.pce.2011.01.010
[8]
Baptista, M.N., Valcarcel, R., Mateus, F.A., Medeiros, W.S. and de Andrade, F.C. (2017) Impact of Urbanization on the Hydrodynamics of a Water Table in a Floodplain with High Potential for Renaturation. Water Resources Management, 31, 4091-4102. https://doi.org/10.1007/s11269-017-1731-5
[9]
Amoateng, P., Finlayson, C.M., Howard, J. and Wilson, B. (2018) A Multi-Faceted Analysis of Annual Flood Incidences in Kumasi, Ghana. International Journal of Disaster Risk Reduction, 27, 105-117. https://doi.org/10.1016/j.ijdrr.2017.09.044
[10]
Blackwell, M.S.A. and Maltby, E. (2006) Ecoflood Guidelines. How to Use Floodplains for Flood Risk Reduction—Annual Report. Environment and Climate Change.
[11]
Hein, T., Schwarz, U., Habersack, H., Nichersu, I., Preiner, S., Willby, N. and Weigelhofer, G. (2016) Current Status and Restoration Options for Floodplains along the Danube River. Science of the Total Environment, 543, 778-790.
https://doi.org/10.1016/j.scitotenv.2015.09.073
[12]
Schindler, S., Sebesvari, Z., Damm, C., Euller, K., Mauerhofer, V., Schneidergruber, A., Biró, M., Essl, F., Kanka, R., Lauwaars, S.G., Schulz-Zunkel, C., Sluis, T.V., Kropik, M., Gasso, V., Krug, A., Pusch, M.T., Zulka, K.P., Lazowski, W., Hainz-Renetzeder, C., Henle, K. and Wrbka, T. (2014) Multifunctionality of Floodplain Landscapes: Relating Management Options to Ecosystem Services. Landscape Ecology, 29, 229-244. https://doi.org/10.1007/s10980-014-9989-y
[13]
Bradley, W.T. (2005) Effective Flood Alleviation Design and Construction. Proceedings of the Institution of Civil Engineers—Municipal Engineer, 158, 107-113.
https://doi.org/10.1680/muen.2005.158.2.107
[14]
Sanon, S., Hein, T., Douven, W. and Winkler, P. (2012) Quantifying Ecosystem Service Trade-Offs: The Case of an Urban Floodplain in Vienna, Austria. Journal of Environmental Management, 111, 159-172.
https://doi.org/10.1016/j.jenvman.2012.06.008
