【摘要】 纳潮量是海湾可以接纳的潮水体积，对维护海湾良好的生态环境至关重要。文章首先针对围填海工程所在厦门九龙江河口的自然条件进行了分析。其次，分别采用传统计算方法、实测水文资料统计以及经充分验证的二维潮流数值模型对九龙江河口现状条件下的纳潮量进行了统计计算。最后，采用数值模拟手段对厦门港海沧港区围填海工程建成后九龙江河口水流特征、潮位变化和纳潮量变化进行了模拟计算，并采用传统计算与数值模拟相结合的方法对其进行了合理性分析。研究结果表明：海沧港区围填海工程面积约为2.95 km~2,工程实施后九龙江河口纳潮量减少率约为4.3%。更多还原

【Abstract】 The tide prism, defined as the volume of water accommodated by an esutary during tidal fluctuations, plays a pivotal role in sustaining the ecological health of estuary and adjacent bay. In this paper, the natural conditions of the Jiulong River estuary in Xiamen were analyzed, where the land reclamation project is located. Subsequently, a comprehensive approach was employed, integrating traditional calculation methods, statistical analysis of measured hydrological data, and a two-dimensional tidal current mathematical model, to statistically estimate the tide prism under current conditions in the Jiulong River Estuary. Furthermore, numerical simulation techniques were used to simulate the changes in water flow characteristics, tidal level variations, and tidal prism after the completion of the land reclamation project in the Haicang Port area of Xiamen. A new method combining traditional calculations with numerical simulations was also used to conduct a rationality analysis of these changes. The results show that the reclamation, spanning an area of 2.95 km~2, leads to a 4.3% decrease in the tide prism.更多还原