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本文详细分析了奉贤县海岸岸滩近十年来的冲淤特征，着重讨论了潮流、波浪和沿岸泥沙运移对岸滩演变的影响。本区岸滩纵向上由东向西存在着明显的波状变化特征，在横向冲淤变幅上以低潮滩至水下斜坡上部最为明显；相对稳定的沿岸潮流和波浪作用强度是岸滩稳定的动力保证，沿岸泥沙供应量的变化则是局部岸滩冲淤变化的关键所在。基于岸滩存在不同性质的冲淤特性，在岸滩资源开发上应采取不同的措施。
In this paper, the characteristics of scouring and silting in the coast bank of Fengxian County in recent ten years are analyzed in detail, and the influences of tidal current, wave and coastal sediment transport on the beach evolution are mainly discussed. There are obvious wavy changes from east to west in the longitudinal direction of this shore bank, most notably in the area from low tide beach to the upper part of the underwater slope in the horizontal erosion and deposition amplitude. The relatively stable coastal tidal current and wave intensity are stable Dynamic guarantee, changes in sediment supply along the coast is the key to changes in local beach erosion and deposition. Based on the scour and silting characteristics of different nature of the shore beach, different measures should be taken in the development of shore beach resources.