沿岸流对海湾污染物质的输运扩散和自净能力具有重要的制约作用。本项目旨在研究闽浙沿岸流动力扩展特征及对海湾入海物质迁移转化过程的影响，拟采用实测资料分析和数值模拟相结合的方法，建立闽浙沿岸的水动力模型和水质生态模型，分析闽浙沿岸流的动力扩展机制、三维空间分布和季节变化特征；在此基础上，选取福建典型海湾（以罗源湾、厦门湾和东山湾为例），重点研究闽浙沿岸流携带的氮磷营养盐对福建海湾污染物质输运过程的影响，探讨由此导致的海湾自净能力的变化。研究成果将有效诊断闽浙沿岸流给福建海湾生态环境带来的影响，丰富闽浙沿岸流对海湾物质输运过程影响的研究方法，为海峡西岸地区的环境管理、环境保护和污染治理提供可靠的科学依据。

The coastal current cycle has an important role in restricting the transport and diffusion of pollutants and the balance of payments in the gulf. The purpose of this project is to study the effect on material transport and diffusion of the gulf by the Min-Zhe coastal current. Combining the measured data analysis and numerical simulation method , the Fujian and Zhejiang coastal hydrodynamic model and water quality models were built to analysis the dynamic extension mechanism、 transport processes and seasonal variation of the Min-Zhe coastal current. On this basis, select typical Bay of Fujian province（take Luoyuan Bay、Xiamen Bay and Dongshan Bay as example） as study area，focuses on the dynamics of Min-Zhe coastal current hydrologic pollutants spatial and temporal distribution characteristics, and to explore the self-purification capacity changes in typical Bay of Fujian. The research results will be valid diagnosis the pollutant transport in the environment impact by the Min-Zhe coastal current, which will enrich the method of the Min-Zhe coastal current affect the gulf pollutant transport processes and provide a reliable scientific basis for the environmental management, environmental protection and pollution control.