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在分析海底地貌学国内外研究现状基础之上,综述我国海底地貌的最新研究进展和发展历程,探讨今后我国近海地貌的研究发展方向:我国现代海底地貌学研究虽然起步较晚,但总的趋势是随着测量技术的不断更新,由宏观向微观、从大的地貌类型向特定的地貌体、从形态特征到地貌过程的研究,并着重研究人类活动与地貌过程的响应关系。针对“908专项”在我国近海海域的调查成果,着重介绍其在我国东海近海海域地形地貌研究中的新发现、新认识:长江口外古潮流沙脊群可分为堆积型、侵蚀—堆积型和侵蚀型潮流沙脊群3种类型;在福建闽江口近岸的马祖列岛和白犬列岛之间发现多条呈SW—NE走向、条带状分布的潮流沙脊,面积约200 km2,水深在15～30 m;在东海陆架沙脊区与金门岛外发现2处新的海底礁石。这些全新的发现和认识对于我国近海海底地貌的研究将起到丰富和推动作用。
Based on the analysis of the current research status of the seabed geomorphology at home and abroad, the latest research progress and development history of the seabed geomorphology in China are reviewed, and the research direction of offshore geomorphology in China is discussed. Although the research of modern seabed geomorphology in China started relatively late, the general trend With the constant updating of measurement technology, from macro to micro, from large landform types to specific landform types, from morphological features to landform processes, the study focuses on the response relationship between human activities and landform processes. In view of the survey results of “908 special ” in the coastal waters of China, this paper mainly introduces the new discoveries in the study of the topography of offshore waters in the East China Sea. New understanding: the ancient sand currents in the Yangtze Estuary can be divided into accumulation type, erosion-accumulation Type and eroded tidal sand ridges. A large number of tidal current ridges with SW-NE strike and strip distribution were found between Mazu and White Dog islands near the Minjiang estuary in Fujian Province, with an area of about 200 km2 , With water depth of 15-30 m. Two new seafloor reefs were found outside the sand ridge area of the East China Sea and Kinmen Island. These new discoveries and understandings will enrich and promote the study of offshore seabed in China.