Mangrove reserves promote the protection of mangroves, but they also lead to the restriction of land development rights in the region, which is unfair to society. This paper aims to evaluate the impact of the spillover of coastal development. Taking the Shankou Mangrove Ecological Reserve in the Beibu Gulf of Guangxi as an example, this paper conducts a research design using the choice experiment. Conditional logit and a structural equation model are used to analyze data and to calculate the respondents' choice preferences and willingness to pay for the limited right to develop the coastal zone. Also, to reveal preference heterogeneity, individual characteristic factor analysis is added. The results show that: after the establishment of the protected area, regional differences are evident in the limited space of coastal development rights. Among them, the limitation degree of sea area use is the highest, followed by beach area; the degree of limitation on land area use is the lowest. The limited spatial differences of coastal development rights may lead to an imbalance in the development of coastal land resources among regions. Other problems include the forced idleness of coastal land resources and the threat to the livelihood of residents. Overall, this is not conducive to the coordinated development of an ecological economy in the reserve. This study can provide a decision-making basis for optimizing the coastal development rights management of coastal zone ecological protection areas. A reference for the coastal development rights management in other countries is also provided.

红树林保护区促进了对红树林的保护，但同时也导致该地区土地开发权受到限制，对社会不公平。本文旨在评估沿海开发溢出的影响。本文以广西北部湾山口红树林生态保护区为例，采用选择实验进行研究设计。条件对数和结构方程模型用于分析数据并计算受访者的选择偏好和支付沿海地区有限开发权的意愿。此外，为了揭示偏好异质性，增加了个体特征因素分析。结果表明：保护区建立后，沿海开发权空间有限，区域差异明显。其中，海域使用受限程度最高，其次是海滩区；用地限制程度最低。沿海开发权空间差异有限，可能导致沿海土地资源开发的区域间不平衡。其他问题包括沿海土地资源的被迫闲置和对居民生计的威胁。总体而言，这不利于保护区生态经济的协调发展。本研究可为优化海岸带生态保护区海岸开发权管理提供决策依据。也为其他国家的沿海开发权管理提供了参考。用地限制程度最低。沿海开发权空间差异有限，可能导致沿海土地资源开发的区域间不平衡。其他问题包括沿海土地资源的被迫闲置和对居民生计的威胁。总体而言，这不利于保护区生态经济的协调发展。本研究可为优化海岸带生态保护区海岸开发权管理提供决策依据。也为其他国家的沿海开发权管理提供了参考。用地限制程度最低。沿海开发权空间差异有限，可能导致沿海土地资源开发的区域间不平衡。其他问题包括沿海土地资源的被迫闲置和对居民生计的威胁。总体而言，这不利于保护区生态经济的协调发展。本研究可为优化海岸带生态保护区海岸开发权管理提供决策依据。也为其他国家的沿海开发权管理提供了参考。其他问题包括沿海土地资源的被迫闲置和对居民生计的威胁。总体而言，这不利于保护区生态经济的协调发展。本研究可为优化海岸带生态保护区海岸开发权管理提供决策依据。也为其他国家的沿海开发权管理提供了参考。其他问题包括沿海土地资源的被迫闲置和对居民生计的威胁。总体而言，这不利于保护区生态经济的协调发展。本研究可为优化海岸带生态保护区海岸开发权管理提供决策依据。也为其他国家的沿海开发权管理提供了参考。