围垦工程对温州近海及河口悬沙场的影响

在温州市瓯江河口及近海水域大范围连续大、中、小潮实测水文泥沙资料及水下地形资料的基础上,建立包括瓯江、飞云江及鳌江在内的大范围平面二维潮流及悬沙输运数学模型,并进一步以2002年为基准水平年,在温州市滩涂资源利用现状的基础上,就近期、中期和远期规划的围垦工程的实施对温州市3大主要入海河流——瓯江、飞云江及鳌江河口及近岸水域的悬沙场分布、断面输沙率、海床冲淤演变等方面的影响进行研究。研究表明:远期工程由于围垦区域较大,影响相应也最大,而中期和近期工程的影响则相对较小。

Influence of reclamation on suspended sediment field in Wenzhou estuarine and offshare waters

Based on hydrological,sediment and underwater terrain data measured in Oujiang estuarine and offshore waters,plane 2D tidal current and suspended sediment transport numerical model for Oujiang,Feiyunjiang and Aojiang were established.And then,taking the year 2002 as the actuality,studies about influence of reclamation containing programming projects of recent,middle and forward stages were carried out,aiming at suspended sediment filed,sediment discharge at profiles and seabed evolution around estuarine and offshore waters of Oujiang,Feiyunjiang and Aojiang.Study results indicate that,owing to the largest reclamation area of the forward stage,the influence is greatest,and it is comparatively slighter caused by reclamation projects of recent and middle stage.