The West African coast is vulnerable to natural hazards and human interventions. Although various measures have been taken at different scales, mostly at the local level, there is a need to improve management at the regional level. We examine these actions and possible solutions from different perspectives and provide conclusions and recommendations on the integration of solutions to improve coastal management. From North West Mauritania to across the Gulf of Guinea a system of coastal zoning that can be managed holistically is encouraged. The development of holistic planning is seen as a sustainable approach to management that seeks to link users/processes together rather than focus on a single particular issue and solution. Strengthening, monitoring, promoting the observation network and generalising open data centralisation and exchange for a better understanding of coastal dynamics and pressures is encouraged. There is a need for capacity building, expertise and federative actions. Furthermore, the need to identify and involve not only stakeholders, but also communities and scientists with multilevel inputs. All must agree on coordinated plans to achieve stakeholder objectives, using an approach adapted to the multi-spatial scale (e.g at the scale of sediment cells, integrating from the sources of sediment in river basins to their redistribution along the coast, perturbed by climate changes and anthropic stresses), so that only regional solutions are appropriate and will be effective. These must follow sustainable strategies with a multi-temporal sequenced solution and anticipate changes, or adaptive solutions using solutions in synergy with different time frames as well as managing natural and human systems responsibly. A plan that considers changes in coastal systems and anticipates impacts and adapts plans accordingly will be key.

中文翻译：

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审查西非的海岸侵蚀和洪灾风险及最佳管理做法：已做和应做的事情

西非海岸易受自然灾害和人为干预的影响。尽管已在不同规模上采取了各种措施，主要是在地方一级，但仍需要改善区域一级的管理。我们从不同的角度研究了这些行动和可能的解决方案，并就整合解决方案以改善沿海管理提供了结论和建议。从毛里塔尼亚西北部到几内亚湾，建立了可以整体管理的沿海分区系统。整体计划的开发被视为一种可持续的管理方法，旨在将用户/流程联系在一起，而不是专注于单个特定的问题和解决方案。加强监测 鼓励促进观测网络并推广开放数据的集中化和交换，以更好地了解沿海动态和压力。需要进行能力建设，专门知识和联合行动。此外，不仅需要确定并让利益相关者参与，还需要有多层次投入的社区和科学家的参与。人人都必须就协调一致的计划达成共识，以实现利益相关者的目标，采用适应多空间尺度的方法（例如，在沉积物单元的尺度上，从流域内沉积物的来源整合到沿海地区其分布，并受到气候变化的干扰）和人类压力），因此只有区域性解决方案才是合适且有效的。这些必须遵循具有多时间顺序解决方案的可持续策略，并预期变化，或自适应解决方案，它可以与不同时间段协同使用解决方案，并负责地管理自然和人为系统。一项考虑沿海系统变化并预测影响并相应调整计划的计划将是关键。