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Three years of morphological dune development after planting marram grass on a beach

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Title: Three years of morphological dune development after planting marram grass on a beach
Authors: Glenn Strypsteen, Dries Bonte, Charlotte Taelman, Jennifer Derijckere, Pieter Rauwoens
Source: EARTH SURFACE PROCESSES AND LANDFORMS
Publisher Information: Wiley, 2024.
Publication Year: 2024
Subject Terms: aeolian processes, Biology and Life Sciences, NEARSHORE, SEA-LEVEL RISE, COASTAL DEFENSE, WIND, 15. Life on land, 01 natural sciences, sediment dynamics, TRANSPORT, coastal adaptation, 13. Climate action, Earth and Environmental Sciences, field measurements, nature-based solution, GROWTH, SPARSE VEGETATION, ecosystem services, SCALE, NOURISHMENT, SANDY BEACHES, 0105 earth and related environmental sciences
Description: Coastal regions globally face escalating challenges from climate change, including rising sea levels and intensified storm events. To address these threats, coastal resilience emerges as a critical paradigm advocating the integration of nature‐based solutions with traditional engineering approaches. Coastal dunes, acting as protective barriers, offer a promising avenue. This three‐year study assesses the efficacy of an artificial dune system to address local sand‐related nuisances on the adjacent seawall featuring planted marram grass in Oosteroever, Belgium. The focus is on understanding sediment accumulation, dune morphology and vegetation development. The results demonstrate a significant increase in dune height, reaching up to 2 m in the zones planted with marram grass, surpassing the height of the adjacent seawall. Comprehensive profiles and drone surveys revealed consistent dune growth of 27 m3/m, which contrasted with the substantial erosion in the adjacent unvegetated beach areas of up to 30 m3/m. One storm event caused dune toe erosion of 1.5 m3/m, but the dune demonstrated rapid recovery through natural aeolian processes. Marram grass development was not impacted by the initial planting configuration and density and was more pronounced at the perimeter edges of the dune. This study highlights the success of the ‘dune‐in‐front‐of‐a‐dike’ approach, offering insights for sustainable coastal resilience strategies.
Document Type: Article
File Description: application/pdf
Language: English
ISSN: 1096-9837
0197-9337
DOI: 10.1002/esp.5870
Access URL: https://biblio.ugent.be/publication/01HYFV4WR8D9KT28GDZ57RNWDH
http://hdl.handle.net/1854/LU-01HYFV4WR8D9KT28GDZ57RNWDH
http://doi.org/10.1002/esp.5870
https://biblio.ugent.be/publication/01HYFV4WR8D9KT28GDZ57RNWDH/file/01JMHMRTH74Q1ZDE2SR2E2PSE2
Rights: Wiley Online Library User Agreement
Accession Number: edsair.doi.dedup.....6d56dd1015ea7a07ea026adf64d52b98
Database: OpenAIRE
Description
Abstract:Coastal regions globally face escalating challenges from climate change, including rising sea levels and intensified storm events. To address these threats, coastal resilience emerges as a critical paradigm advocating the integration of nature‐based solutions with traditional engineering approaches. Coastal dunes, acting as protective barriers, offer a promising avenue. This three‐year study assesses the efficacy of an artificial dune system to address local sand‐related nuisances on the adjacent seawall featuring planted marram grass in Oosteroever, Belgium. The focus is on understanding sediment accumulation, dune morphology and vegetation development. The results demonstrate a significant increase in dune height, reaching up to 2 m in the zones planted with marram grass, surpassing the height of the adjacent seawall. Comprehensive profiles and drone surveys revealed consistent dune growth of 27 m3/m, which contrasted with the substantial erosion in the adjacent unvegetated beach areas of up to 30 m3/m. One storm event caused dune toe erosion of 1.5 m3/m, but the dune demonstrated rapid recovery through natural aeolian processes. Marram grass development was not impacted by the initial planting configuration and density and was more pronounced at the perimeter edges of the dune. This study highlights the success of the ‘dune‐in‐front‐of‐a‐dike’ approach, offering insights for sustainable coastal resilience strategies.
ISSN:10969837
01979337
DOI:10.1002/esp.5870