海洋地质前沿2025，Vol.41Issue(4)：60-70,11.DOI:10.16028/j.1009-2722.2025.033
瓯江口动力地貌演化的水沙环境研究
The geomorphic evolution and water-sediment environment in Oujiang River Estuary
摘要
Abstract
Oujiang Estuary is located at the confluence of the East China Sea and the Oujiang River,and it is the core area of the coastal industrial belt and an important industrial cluster in Wenzhou City,Zhejiang Province.Based on the investigation and analysis on the hydrology,sedimentology,topography,and sedimentary environ-ment,we studied the dynamic geomorphology evolution and water-sediment transport characteristics of the estu-ary.Results show that the dynamic geomorphological system of shoal-channel is an important part of the geomor-phological pattern of Oujiang River estuary,and the geomorphological pattern is the result of the combined action of Oujiang River runoff and the dynamic conditions of waves,tides,and currents in the estuary.The seabed topo-graphy is characterized by the distribution pattern of"channel erosion"in the northern branch and"shoal depos-ition"in the southern branch.The water transport in the estuary is dominated by the ebb flow in the southern branch,while the flood flow in the northern branch is evident during the spring tide and the ebb flow is evident during the neap tide.At the same time,the asymmetry of tidal currents under the combined action of runoff and tidal currents is obvious.The net sediment transport at the southern mouth of Oujiang River was between 224 and 8 876 kg,while at the northern mouth,it was between 20 and 15 506 kg,indicating active sediment movement.The dynamic geomorphology and water-sediment environment of the estuary are the result of the relative effects of river and tidal currents,human construction projects in the estuary,and the nearshore circulation system.关键词
瓯江口/沉积动力/地貌/水文泥沙/输运Key words
Oujiang River Estuary/sediment dynamics/geomorphology/hydrology and sediment/transport分类
海洋学引用本文复制引用
吴承强,董超,王建强,陈选博,周宇渤,张朋,仇建东..瓯江口动力地貌演化的水沙环境研究[J].海洋地质前沿,2025,41(4):60-70,11.基金项目
浙江省海岸带重点区综合地质调查(温州重点区)(2018009) （温州重点区）
玉环国家级海洋公园综合地质调查项目(2024010) （2024010）
亚洲合作资金项目"长江三角洲与红河三角洲海洋地质环境与灾害合作研究" （）
