我国海底地貌研究进展及其在东海近海的新发现、新认识  

The Present Research Trend of China's Submarine Geomorphology and New Discovery of the East China Sea Offshore

作　　者：郑勇玲[1] 吴承强[1] 蔡锋[1] 鲍晶晶[1] 许艳[1] 

机构地区：[1]国家海洋局第三海洋研究所,福建厦门361005

出　　处：《地球科学进展》2012年第9期1026-1034,共9页Advances in Earth Science

基　　金：国家自然科学基金项目"扬子浅滩南部地形地貌精细研究及成因机制分析"(编号:41276058);国家自然科学基金项目"台湾海峡西岸强潮砂质海滩地貌动力学过程研究"(编号:40976057);国家海洋局重大专项项目"我国近海海底地形地貌调查研究"(编号:908-ZC-I-07)资助

摘　　要：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 research status of the international submarine geomorphology, the present research trend of China is reviewed, and the research trend of China＇ s offshore submarine geomorphology is ex- plored. It is pointed out that modem submarine geomorphology of China started lately, but the overall trend is constantly updated with the measurement techniques, from macro to micro, from the landscape type and to a specific landscape, in-depth study, with an emphasis on the relationship between human activities and geomorphie process. The achievements, new discoveries and new knowledge of the submarine topography and geomorphology in offshore China are introduced emphatically in the light of ＂Investigation on Submarine Topography and Geomorphology in Offshore China（908）＂： The Yangtze River sand ridge group of ancient tide outlets can be divided into the accumulation of the ancient trend, erosion-sand ridge group of the ancient tide up sand ridge and erosion of the ancient tide sand ridge group of three types; In the Minjiang River mouth of Fujian offshore islands between Matsu Island and White Dog Island, more SW-NE strips are found of distribution of sand ridge, with an area of about 200 km2 and sea water depth of 15 to 30 m ; In the East China Sea continental shelf sand ridge area outside Taiwan two new submarine rocks are found. These new findings and knowledge in the research of the landscape in offshore plays a great role in the promotion and improvement of the research of offshore submarine geomorphology.

关 键 词：海底地貌 海底探测技术 东海近海 

分 类 号：P737.2[天文地球—海洋地质]