Restoring the natural functional capacity of coastal dune ecosystems: Utilising research records for New Zealand littoral refurbishment as a proxy for analogous global responses

The complexity of studying coasts: From forms and processes to management

“…6C, D), dune coring (Nordstrom, 2019) and replanting (Ley et al, 2007). However, as in beaches, dune recuperation must be very carefully performed, always taking into account the subtle equilibrium between plant ecology and sediment accumulation (Houston et al, 2001;Jenks, 2018). In this sense, García-Lozano et al (this issue) make an analysis of the response of different types of dunes, both natural and restored, along the Catalan and Valencian shores.…”

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“…6C, D), dune coring (Nordstrom, 2019) and replanting . However, as in beaches, dune recuperation must be very carefully performed, always taking into account the subtle equilibrium between plant ecology and sediment accumulation (Houston et al, 2001;Jenks, 2018). In this sense, García-Lozano et al (this issue) make an analysis of the response of different types of dunes, both natural and restored, along the Catalan and Valencian shores.…”

“…Este tipo de estructuras son mucho más efectivas reteniendo sedimentos respecto a los espigones y muestran valores medios de acreción de hasta 0,89 m/año, cercanos a los valores que se registran aguas arriba de puertos (Figura 4b y c). Las estructuras perpendiculares a la orilla (diques y espigones) y los puertos actúan como límites absolutos o permeables de celdas (Bray et al, 1995) que afectan a la circulación de la zona de surf y, normalmente, producen acreción aguas arriba y erosión aguas abajo, tal como observado también por Rangel-Buitrago et al (2012, 2018 a lo largo de la costa caribeña de Colombia o por Anfuso et al (2013) en el sureste de Sicilia. En este trabajo, los valores medios registrados en las áreas aguas arriba y abajo de estas estructuras reflejan el efecto del trasporte longitudinal: valores medios de acreción aguas arriba de 0,16 m/año y de erosión aguas abajo de 0,13 m/año (Fig.…”

“…The most widely methods used for restoration are wind interference traps, elevated walkways and perimeter cords of dune fronts. The elimination of recreational use on dunes and/or their revegetation have giving satisfactory results in recent decades (Gómez-Piña et al, 2002;Lithgow et al, 2013;Roig-Munar et al, 2015, 2018. Dune restoration techniques must be carried out after analysing the spatio-temporal evolution of the system, identifying the impacts and their causes and effects, as well as the natural and/or anthropic elements that favour their erosion (Hesp and Walker, 2012;Cabrera -Vega et al, 2013).…”

“…Thus, Morphological changes of the beaches from satellite-derived shorelines while Landsat offers 30 m of pixel size, Sentinel 2 offers 10 m and 20 m. This limitation has been overcome by different algorithmic solutions (e.g. Pardo-Pascual et al, 2012, 2018Vos et al, 2019;Bishop-Taylor et al, 2019, Sánchez-García et al, 2019 that extract the position of the shoreline with sub-pixel accuracy. Thus, the integration of the extraction algorithm originally proposed by Pardo-Pascual et al (2012) and Almonacid-Caballer (2014) with other necessary tools for the download and pre-processing of the images has led to the creation of SHOREX Cabezas-Rabadán et al, 2021).…”