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海底活动性是港口开发和发展的重要决策依据，它与海域的地貌演化、底床稳定性和水质密切相关。根据海南岛博鳌港枯水期观测资料，对反映海底活动性两个主要指标（沉积物活动时间和输运强度）进行了分析。结果表明：枯水期，湾内的底部沉积物活动时间较短，输运强度较低，底床基本稳定；但在口门区域，因水流能量的汇聚作用，海底活动性较强。由于口门海区海底稳定性关系到整个玉带滩海岸大沙坝和博鳌港的岸线稳定，在博鳌生态环境建设和经济发展规划的决策中应特别重视口门区域的整治和保护，采用合理的工程措施来提高其稳定性，以确保博鳌地区开发和利用的可持续性。
Seabed activity is an important decision-making basis for the development and development of the port. It is closely related to the evolution of the terrain, the stability of the bed and water quality. According to the observation data of the dry season of Bo’ao Harbor in Hainan Island, two major indexes (sediment activity time and transport intensity) reflecting seabed activity are analyzed. The results show that in the dry season, the bottom sediment in the bay has a shorter activity time, lower transport intensity, and a basically stable bed. However, in the mouth gate area, the seabed activity is stronger due to the convergence of water flow energy. Due to the stability of the seabed at sea level, which is related to the stability of the coastline of the large sand bar and Bo’ao Port along the coast of Jade Zhaba, special attention should be paid to the renovation and protection of the gate area in the decision-making of the ecological environment construction and economic development planning in Boao. Engineering measures to improve its stability to ensure the sustainability of development and utilization in Boao.