【作者】 穆锦斌； 吴创收； 黄世昌；

【Author】 MU Jinbin;WU Chuangshou;HUANG Shichang;Zhejiang Institute of Hydraulics & Estuary;

【机构】 浙江省水利河口研究院；

【摘要】 温州瓯飞滩开敞海区潮滩演变受波浪、潮流等自然条件和人类活动综合影响。本文从利用大量的实测水文、地形资料,结合区域人类活动情况,系统分析了区域水沙运动规律和潮滩演变情况。研究结果表明,瓯飞开敞海域以海域来沙为主,滩面呈现泥沙陆向净输移;近年来由于长江入海泥沙减少及周边区域大规模围垦固沙活动,瓯飞水下浅滩已呈现冲刷趋势;实测资料分析表明,滩涂围垦后潮滩存在收缩效应,潮滩剖面比降较围垦前有所增加,潮滩恢复能力降低,堤前潮滩虽有所淤积,但很难再恢复至原有的平均潮位以上潮滩面貌。论文研究成果对于了解开敞海域演变机理及滩涂治理开发有重要指导意义。更多还原

【Abstract】 The tidal flat evolvement characters has suffered influences by wave,tidal current and human activity in the open sea of Wenzhou.According to the data of hydrology,sediment and the river terrain obtained from field measurements,we systematically analyzed the water-sediment movement and tidal flat evolvement in the paper.The result show that the sediment source of Oufei seazone is from the sea.Due to the sharp decline of the sediment supply from the Changjiang River to the sea and tidal flat reclamation,the shoal has displayed erosion tendency.And the tidal flat after reclamation exists shrinkage effect according to the analysis of the field measurements.The slope of the tidal flat profile has been increased after reclamation.The recovery capability of the tidal flat reduced.It is difficult to recovery original features over the mean tidal level.The research findings is important for cognizing the evolvement characters of open sea area and tidal flat harnessing and development.更多还原