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从分析控制或影响闽江口水下三角洲发育的环境因素入手,探讨了闽江口水下三角洲的地貌特征、成因及演变。结果表明,闽江口水下三角洲属于构造-潮控型三角洲,其地貌特征和成因与典型的潮成三角洲既有共同点,也存在着较大的差异。此外,其近期地貌的发育和演变亦受到人类工程活动的重大影响。这些结论可为闽江口航道综合整治工程提供科学理论依据。本文为其第一部分,主要探讨控制或影响闽江口水下三角洲形成的环境因子与地貌发育。
Starting with the analysis of the environmental factors controlling or affecting the development of the Minjiang River subaqueous delta, the paper discusses the features, causes and evolution of the submarine delta in the Minjiang River Estuary. The results show that the Minjiang River mouth submerged delta belongs to the tectonic-tidal delta, and its geomorphic features and genesis have both common points and great differences with the typical tidal delta. In addition, the development and evolution of its recent landform has also been greatly influenced by human engineering activities. These conclusions can provide a scientific basis for the comprehensive regulation of Minjiang Estuary Channel. This article is the first part of the paper, mainly discussing the environmental factors and geomorphologic development that control or influence the formation of submarine deltas in the Minjiang River estuary.