中文摘要：

自从 1950 年代，在华南的厦门海湾经历了广泛的沿海的利用，导致一些严重环境问题。本地当局现在完成了或正在实现许多环境恢复工程。在环境上评估利用和恢复活动的累积影响是一个复杂多学科的问题。然而，在海湾的水动力学变化由如此的沿海的工程引起了能通过数字建模直接并且决定性地被描绘。这份报纸用作为二个水动力学索引使用潮汐的当前的速度和潮汐的棱柱的一个高分辨率的数字建模方法在水动力学背景上估计沿海的工程的累积效果。在潮汐的速度和水动力学调节的潮汐的棱柱表演的特征的变化在完整潮的区域从 1938 ～ 2007 衰退了。潮汐的当前的速度和潮汐的棱柱在海湾的西方的部分在 40% 减少了并且 20% 在海湾的东方部分。因为在潮汐的棱柱和区域之间的线性关系，降级的水动力学条件被期望被恢复到跟随当前、建议的恢复工程的结束的 1972 个层次，即 33% 和 15% 分别地为海湾的西方、东方的部分处于 1938 的水动力学条件减少。结果显示水动力学条件能与一个持续沿海的发展计划的实现被恢复到某程度，尽管条件的完整的颠倒不是可能的。充分在一个区域估计环境变化，更多的索引，例如，水质量和生态系统参数，应该在未来评估被考虑。

英文摘要：

Xiamen Bay in South China has experienced extensive coastal exploitation since the 1950s, resulting in some severe environmental problems. Local authorities now have completed or are implementing many environmental restoration projects. Evaluating the cumulative impact of exploitation and restoration activities on the environment is a complicated multi-disciplinary problem. However, hydrodynamic changes in the bay caused by such coastal projects can be characterized directly and definitively through numerical modeling. This paper assesses the cumulative effect of coastal projects on the hydrodynamic setting using a high-resolution numerical modeling method that makes use of tidal current speeds and the tidal prism as two hydrodynamic indices. Changes in tidal velocity and the characteristics of the tidal prism show that hydrodynamic conditions have declined from 1938 to 2007 in the full-tide area. The tidal current speed and tidal prism have decreased by 40% in the western part of the bay and 20% in the eastern part of the bay. Because of the linear relationship between tidal prism and area, the degraded hydrodynamic conditions are anticipated to be restored to 1972 levels following the completion of current and proposed restoration projects, i.e. 33% and 15% decrease in the hydrodynamic conditions of 1938 for the western and eastern parts of the bay, respectively. The results indicate that hydrodynamic conditions can be restored to some extent with the implementation of a sustainable coastal development plan, although a full reversal of conditions is not possible. To fully assess the environmental changes in a region, more indices, e.g., water quality and ecosystem parameters, should be considered in future evaluations.