Abstract
Overuse of coastal regions may lead to coastal erosion and shoreline retreat, threatening the inherent life and property of the coast. This is because typhoon waves with storm surges frequently attack overdeveloped coasts and related structures. In the present study, coastal buffer and protection zones were defined for the management of coastal disasters. The coastal buffer zone may offer remarkable advantages to avoid improper coastal use and limit the impact of extreme events by reducing erosion, mitigating coastal disasters, improving water quality, expanding habitats, and minimizing coastal degradation. Further, factors affecting the establishment of coastal buffer zones were classified according to natural and anthropogenic characteristics. Moreover, regarding the direction of research into coastal buffer zones, themes and countermeasures for coastal buffer zone management were discussed from the perspectives of technology, planning, and management policies. Finally, the application of numerical models to assess the impact factors in coastal buffer zones are proposed.
Highlights
Due to economic and population growth, the use of coastal and marine spaces by humans has increased, and the impact of human activities in some coastal areas has reached the coastline
Coastal disasters caused by wave energy can be avoided through the design and management of a coastal buffer zone, offering a protective barrier between land-based activities and adjacent coastal waters [8]
People only considered economic aspects when developing coastal areas in a district, which led to the over-utilization of many coastal buffers
Summary
Due to economic and population growth, the use of coastal and marine spaces by humans has increased, and the impact of human activities in some coastal areas has reached the coastline. A transition zone of coastal change should be marked at the land–sea junction in the coastal area This transition zone can promote the dissipation of wave energy and maintain the balance of sediment transport, acting as a buffer to mitigate and prevent coastal disasters. Coastal disasters caused by wave energy can be avoided through the design and management of a coastal buffer zone, offering a protective barrier between land-based activities and adjacent coastal waters [8]. The buffer zone can serve as the potential line of defense to prevent beach transition, improve water quality, and maintain habitats in aquatic and coastal environments Establishment of such a buffer zone is key to the centralized management and mitigation of coastal disasters. Approaches for the delineation of coastal buffer zones and recommendations for their planning and management in the future are detailed
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