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温州地区海岸平原,是自全新世海侵时期海面达现海面高度后的最近6000年,才由海湾堆积而成的。温州岸外海滨有许多岛屿拦阻了东北向来的波浪,对温州岸段起着天然屏障的作用,在岛屿后面形成了隐蔽的沉积环境。在这种情况下,随着泥沙的供应,隐蔽区逐渐变浅,海岸平原的海滨线不断向海推移,发育了宽阔的潮滩。然而,潮间带的潮差大,而且破碎波随着涨落潮水流的方向往复推移,这种过程作用在不同水位的潮滩上,对潮滩的泥沙搬移和剖面塑造具有重要作用。本文从历史过程和现代过程对潮滩的塑造进行了探讨,试图为潮滩的合理开发和综合利用提供一些理论分析。
The coastal plains in Wenzhou, which have been piled up by the Gulf for the last 6,000 years since the sea level of the Holocene transgression during the Holocene transgression period. There are many islands off the coast of Wenzhou, blocking the northeast of the island has always been the wave of the shore section of Wenzhou played a natural barrier role in the island behind the formation of a hidden sedimentary environment. Under such circumstances, along with the supply of sediment, the hidden area gradually becomes shallow, and the coastline of the coast plains continues to move towards the sea and develops a broad tidal flat. However, the tidal range of the intertidal zone is large, and the breaking wave reciprocates along with the direction of the tidal current. The process acts on the tidal flat at different water levels, which plays an important role in sediment transport and profile shaping of the tidal flat. This article discusses the shaping of tidal flat from historical process and modern process, and tries to provide some theoretical analysis for the reasonable development and comprehensive utilization of tidal flat.