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《Quaternary Sciences》 2007-05
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RIVER-SEA INTERACTIVE SEDIMENTATION AND PLAIN MORPHOLOGICAL EVOLUTION

Wang Ying Fu Guanghe Zhang Yongzhan(Department of Coastal Ocean Sciences & The Key Laboratory of Coastal and Island Development, Ministry of Education, Nanjing University, Nanjing 210093)  
Rivers are the major transport agent of terrigenous sediment to the ocean and greatly influence the sedimentary dynamics in coastal water. It is estimated that about 10% of world sediment flux was carried out by rivers from China. The modern continental shelf of China seas was a coastal plain during the Late Pleistocene. River-sea interactivity was the major factor for both the forming of the plain and the distribution of sediments. Five different types of rivers studied in this paper show different characteristics of sediment movement and distribution in estuaries and different influences on their adjacent continental shelf: (1) The Yalu River, a macro-tidal estuary forms a bi-direction (river to sea and sea to river) sediment pattern in the estuary and a tidal ridge along the Yellow Sea coast. (2) The Luanhe River, a river controlled mainly by monsoon waves, forms offshore barriers surrounding the river mouth; as a result, a double-sided coastal line with shallow sea or lagoon between is formed. Sediment pattern shows a decreased grain size deposition from the offshore towards the coast. Coastal waves drive sands to both sides of river mouth, forming the sand barrier with sand spit features. (3) The Huanghe River, a river controlled by micro-tide, has coarse silt deposited along both sides of the river mouth in the form of finger-shaped bars. The bars grow rapidly with huge amount of sediment transported by the river. On both sides of the bars protect bays in which fine silt and silty clay, collected as fluid mud, are formed. Clayey material is also transported to North as carried by long shore current to the Bohai Bay. (4) The sedimentation pattern of rivers with a combined control of runoff and long shore current, has the Changjiang River as an example. Sediment is mainly deposited at the south, partly to the east. Narrow sedimentary belt is formed with clayey silt, silt, and fine sand of decreasing grain size towards the sea, with a submarine delta formed in 5~20m water depth off the river mouth. (5) The Zhujiang River is the example of sedimentation pattern of embayment trapping, a transitional pattern between estuary and delta. Allthe above sedimention patterns have been changed by human activities, including the building of dams, diverting river discharges, etc. The formation of plain is also described, taking the Luanhe River delta as an example.
【Fund】: 国家自然科学基金项目“河海交互作用与苏北平原成因研究”(批准号:40271004)外延成果
【CateGory Index】: P512.22
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【References】
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1 XUE Chun-ting(The Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology,Ministry of Land and Resources,Qingdao,Shandong 266071;Qingdao Institute of Marine Geology,Qingdao,Shandong 266071);Historical Changes of Coastlines on West and South Coasts of Bohai Sea since 7000 a B. P.[J];Scientia Geographica Sinica;2009-02
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【Co-references】
Chinese Journal Full-text Database 10 Hits
1 ZHOU Shang-zhe~{1, 2}, LI Ji-jun~2(1. Department of Geography, South China Normal University, Guangzhou Guangdong 510080, China;2. Department of Geography, Lanzhou University, Lanzhou Gansu 730000, China);New Dating Results of Quaternary Glaciations in China[J];Journal of Glaciology and Geocryology;2003-06
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3 WANG Xin1,2,LIU Shi-yin2(1.Institute of Geo-spatial Information Science,Hunan University of Science and Technology,Xiangtan Hunan 411201,China;2.State Key Laboratory of Cyospheric Science,Cold and Arid Regions Environmental and EngineeringResearch Institute,Chinese Academy of Sciences,Lanzhou Gansu 730000,China);An Overview of Researches on Moraine-Dammed Lake Outburst Flood Hazards[J];Journal of Glaciology and Geocryology;2007-04
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5 CUI Zhi-qiang;LIU Deng-zhong;LIU Hai-jun;ZHAO Pei-song(Geosciences College,Chengdu University of Technology,Chengdu 610059,China);The analysis of Anglfrencuo polycyclic constitution in Tibet[J];Science of Surveying and Mapping;2007-06
6 HE Zhong-hua①,LIANG Hong①,HUANG Fa-su②,ZHAO Fang③,ZHOU Zhi④(①School of Geography and Biology,Guizhou Normal University,Guiyang 550001,China;②Department of Hydrology and Water-recource,Guiyang 550001,China;③The No.3 Middle school of Bai Yun District,Guiyang 550003,China;④Guizhou Appraisal Center For Environment & Engineering,Guiyang 550002,China);The influencing factor analysis of geomorphologic development of karst drainage based on DEM[J];Science of Surveying and Mapping;2008-04
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10 LIU Zhi-jie~1,SUN Yong-jun~(2,3)(1.College of Earth Sciences and Resources,China University of Geosciences,Beijing 100083;2.Institute of RS and GIS,Peking University,Beijing 100871;3.China Aero Geophysical Survey & RS Center for Land and Resources,Beijing 100083,China);Uplift of the Qinghai-Tibet Plateau and Formation,Evolution of the Yellow River[J];Geography and Geo-Information Science;2007-01
【Secondary References】
Chinese Journal Full-text Database 1 Hits
1 XUE Chun-ting1,2(1 Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology,Ministry of Land and Resources,Qingdao 266071,China; 2 Qingdao Institute of Marine Geology,Qingdao 266071,China);THE PRESENT SITUATION,MANAGEMENT AND APPROACHES OF THE SHELLY RIDGES ALONG THE WEST COAST OF THE BOHAI SEA IN THE NATURAL RESERVES,HEBEI AND SHANDONG PROVINCES[J];Marine Geology Letters;2010-01
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