Nature-Based Solutions in Coastal Systems

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Coastal Engineering".

Deadline for manuscript submissions: 10 September 2025 | Viewed by 1144

Special Issue Editors


E-Mail Website
Guest Editor
Flanders Hydraulics, Antwerpen, Belgium
Interests: coastal dynamics; nature-based solutions; climate change adaptation

E-Mail Website
Guest Editor
Flanders Hydraulics, Antwerpen, Belgium
Interests: coastal engineering; nature-based solutions; coastal protection and development

Special Issue Information

Dear Colleagues,

Coastal systems are very dynamic and predilect places for human activities and settlements. The challenges are multiple, ranging from a continuous increase in economic activities to accelerated sea level rise and sediment starvation. In the last century, coastal protection and development were initially focused on hard structure construction, then on hybrid approaches, where more sustainable solutions such as artificial beach nourishments were combined with hard structures. Currently, nature-based solutions (NbSs) are an innovative concept that aims to restore and develop natural values, resulting in improved coastal defense and a wide range of ecosystem services.

Recently, many projects were concerned with NbSs, transitioning from an alternative solution to mainstreaming for coastal development. We propose this Special Issue to record the experience of NbS design and implementation and explore possible future developments. Our experience is built on projects mainly in the North Sea region, but this Special Issue is open for worldwide studies.

Dr. Sebastian Dan
Dr. Toon Verwaest
Guest Editors

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Keywords

  • nature-based solutions
  • sandy coasts
  • beach nourishments
  • coastal squeeze
  • multifunctional coastal defense
  • coastal geomorphology
  • nature restoration
  • sediment management

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Published Papers (2 papers)

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Research

19 pages, 15975 KiB  
Article
Utilization of Marine-Dredged Sediment and Calcium Sulfoaluminate Cement for Preparing Non-Sintered Ceramsites: Properties and Microstructure
by Jiuye Zhao, Zijian Wang, Mengying Xiao, Chunyi Cui and Hailong Liu
J. Mar. Sci. Eng. 2025, 13(5), 891; https://doi.org/10.3390/jmse13050891 (registering DOI) - 30 Apr 2025
Abstract
The resource utilization of marine-dredged sediment is considered a sustainable approach to its disposal. This paper investigates the preparation of non-sintered ceramsites from marine-dredged sediments and CSA cement via cold-bonded pelletization. The study examines the effects of various preparation conditions on the engineering [...] Read more.
The resource utilization of marine-dredged sediment is considered a sustainable approach to its disposal. This paper investigates the preparation of non-sintered ceramsites from marine-dredged sediments and CSA cement via cold-bonded pelletization. The study examines the effects of various preparation conditions on the engineering properties, phase compositions and microstructures of non-sintered ceramsites. The results indicate that preparation conditions significantly influence the particle size distribution of non-sintered ceramsites. The early-strength development of non-sintered ceramsites prepared from CSA cement is remarkable, with the PCS achieving approximately 60% and 80% of the 28-day strength within 3 days and 7 days, respectively—a marked contrast to OPC. Response surface methodology analysis reveals significant interaction effects between the disc rotation angle, rotational speed, and duration of rotation on the PCS of non-sintered ceramsites. The open-ended porosity of non-sintered ceramsites exhibits greater sensitivity to changes in preparation parameters compared to closed-ended porosity and total porosity. The preparation conditions have negligible impact on the hydration process of CSA cement in non-sintered ceramsites. For both ellipsoidal and plate-like marine-dredged soil particles, ettringite and the AH3 phase provide effective pore-filling and binding effects in the microstructures of non-sintered ceramsites. These findings imply that low-carbon utilization of marine-dredged sediments through the preparation of non-sintered ceramsites offers a nature-based solution for sustainable management in coastal systems. Full article
(This article belongs to the Special Issue Nature-Based Solutions in Coastal Systems)
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23 pages, 4134 KiB  
Article
Towards a Common Language for Mainstreaming Nature-Based Solutions Through Coastal Systems in the North Sea Region: The Manabas Coast Project
by Geert J. M. van der Meulen, Jurre J. de Vries, Lisa van Well and Frances A. Kannekens
J. Mar. Sci. Eng. 2025, 13(3), 509; https://doi.org/10.3390/jmse13030509 - 5 Mar 2025
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Abstract
Nature-based solutions (NBSs) offer an opportunity to address environmental and societal challenges worldwide while simultaneously providing benefits for human well-being as well as biodiversity. Despite a growing demand and evidence base for NBSs in coastal systems, the scaling of their implementation and mainstreaming [...] Read more.
Nature-based solutions (NBSs) offer an opportunity to address environmental and societal challenges worldwide while simultaneously providing benefits for human well-being as well as biodiversity. Despite a growing demand and evidence base for NBSs in coastal systems, the scaling of their implementation and mainstreaming of their principles in policy and practice are constrained by multiple barriers, such as misinterpretations of concepts, effectiveness, or locked-in preferences or conventions of traditional solutions. To address these constraints, an international consortium of coastal authorities and experts in the North Sea Region collaborates to validate, document, and share learnings of NBSs to establish a framework for mainstreaming NBSs for flood and coastal erosion risk management around the North Sea. Co-creation processes of workshops, field visits, and expert knowledge sessions contributed to a theoretical framework and baseline assessments of exemplary sandy and muddy case study sites in the region, amongst others, iteratively providing and showcasing building blocks for the mainstreaming framework. This article takes stock halfway of the project’s activities, learnings, and status of the called-for common language. Full article
(This article belongs to the Special Issue Nature-Based Solutions in Coastal Systems)
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