They provide immediate protection during storm season, but can be removed at times of year when extreme storms are unlikely and recreational beach use is most important. In order to protect the local economy further, beaches should be repaired after major storms through “beach nourishment” (replacement of lost sand from external sources).
沙丘特别有用，这是由海岸地区的经济价值决定的。它们能够在风暴季提供现成的保护，在一年中不可能发生极端风暴、海滩需要用于休闲娱乐用途时又可以轻易地移除。为了进一步保护地方经济，大风暴过后应该用“人工育滩”（用外部资源补充损失的沙子）对海滩进行修复。