【摘要】 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。更多还原

【Abstract】 This paper discusses the geomorphological characteristics, origin and evolution of theunderwater delta in the Minjiang Estuary, based on the analysis of environment factors thatcontrol or affect its formation. The studied results indicated that the underwater delta ofMinjiang Estuary can be classificated as a tectonic-tidal delta. Its geomorphological characteristics and origin are samed with those of typical tidal delta in a sense, but with larger differences also. In adition, its recent geomorphological formation and evolution are significantly affected by human engineering actions. These conclusions can provide scientific basis forthe synthetical harnessing project of shipping channeis in the Minjiang Estuary. This paperof the first part of the series, which mainly discusses the environment factors that control oraffect the formation of the underwater delta in the Minjiang Estuary and its geomorpho logical formation.更多还原