A systematic review of jetty-induced downdrift coastal erosion management

• Published in: Regional studies in marine science Vol. 74; p. 103523
• Main Authors: Saengsupavanich, Cherdvong, Rif’atin, Hany Q., Magdalena, Ikha, Ariffin, Effi Helmy
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.09.2024
• Subjects: Coastal structures; Integrated coastal zone management; Managed retreat; Sustainable coastal development; Managed retreat; Integrated coastal zone management; Sustainable coastal development; Coastal structures
• ISSN: 2352-4855; 2352-4855
• DOI: 10.1016/j.rsma.2024.103523

Construction of jetties has been repeatedly demonstrated to cause significant erosion in the downdrift area. Various mitigation structures and regulations have been extensively implemented, including engineering and coastal managerial approaches. However, such implementations are not always successful under different circumstances. Therefore, a systematic review of this topic is urgently needed to help us learn the status of how jetty-induced downdrift coastal erosion is currently managed globally. In this study, the authors employed the updated Preferred Items for the Systematic Review and Meta-Analysis (PRISMA) Framework for 2020 to conduct a comprehensive analysis of articles that focused on coastal management policies to address erosion resulting from jetty constructions. These articles were published between 2013 and 2023. Our PRISMA analysis reveals a noteworthy shift in the trends of mitigation strategies employed over the years. While the initial focus was on the utilization of hard structures, the contemporary approach emphasizes management strategies, such as sand-bypassing and managed retreat. Additionally, there is an emerging trend towards hybrid systems, which combine both hard structures and management strategies. Moreover, there is a scarcity of studies that specifically evaluate the effectiveness of these management strategies. Our review urges for a deeper investigation, reveals the inherent limitations and gaps in the current body of knowledge, and discusses the potential benefits associated with each mitigation approach.