Evaluating the Response of Mediterranean-Atlantic Saltmarshes to Sea-Level Rise

Miriam Fernandez-Nunez, Helene Burningham, Pilar Díaz-Cuevas and José Ojeda-Zújar
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Miriam Fernandez-Nunez: Geography, Geology and the Environment Department, Kingston University, Penrhyn road, Kingston upon Thames KT12EE, UK
Helene Burningham: Geography Department, University College London, Pearson Building, Gower Street, London WC1E 6BT, UK
Pilar Díaz-Cuevas: Departamento de Geographia Fisica y AGR, Universidad de Sevilla, C/Maria de Padilla sn, 41004 Sevilla, Spain
José Ojeda-Zújar: Departamento de Geographia Fisica y AGR, Universidad de Sevilla, C/Maria de Padilla sn, 41004 Sevilla, Spain

Resources, 2019, vol. 8, issue 1, 1-20

Abstract: Saltmarshes provide high-value ecological services and play an important role in coastal ecosystems and populations. As the rate of sea level rise accelerates in response to climate change, saltmarshes and tidal environments and the ecosystem services that they provide could be lost in those areas that lack sediment supply for vertical accretion or space for landward migration. Predictive models could play an important role in foreseeing those impacts, and to guide the implementation of suitable management plans that increase the adaptive capacity of these valuable ecosystems. The SLAMM (sea-level affecting marshes model) has been extensively used to evaluate coastal wetland habitat response to sea-level rise. However, uncertainties in predicted response will also reflect the accuracy and quality of primary inputs such as elevation and habitat coverage. Here, we assessed the potential of SLAMM for investigating the response of Atlantic-Mediterranean saltmarshes to future sea-level rise and its application in managerial schemes. Our findings show that SLAMM is sensitive to elevation and habitat maps resolution and that historical sea-level trend and saltmarsh accretion rates are the predominant input parameters that influence uncertainty in predictions of change in saltmarsh habitats. The understanding of the past evolution of the system, as well as the contemporary situation, is crucial to providing accurate uncertainty distributions and thus to set a robust baseline for future predictions.

Keywords: sea-level rise; saltmarshes; coastal wetland management; SLAMM (search for similar items in EconPapers)
JEL-codes: Q1 Q2 Q3 Q4 Q5 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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