As the sea-level rise is expected to reach 80 to 200cm in the next 100 years and inundate hundreds of coastal cities, the number of people forced to relocate globally is likely to reach hundreds of millions. Managing the retreat is increasingly becoming the first option to effectively eliminate the risk. Frequent and serious coastal disasters pose a challenge to the traditional defense idea of "man conquers nature". This paper mainly adopts the literature method to study the management retreat mechanism of coastal disaster risk areas in the US. It expounds the importance of management retreat by reviewing cases and regulations, summarizes five types of tools for implementing management retreat, namely planning, acquisition, supervision, transfer of development rights and laws, and discusses the adaptation of residents in receiving areas and ecological restoration in evacuated areas after evacuation. It is hoped that these strategies can provide reference for the withdrawal mechanism of construction land in our coastal disaster risk areas.

mechanism of managed retreat  /  coastal zone of United States  /  disaster risk area