摘要
当前正处于向长江口发展的最好时机。随着长江口深水航道整治工程的开展,长江口水流复杂、河势易变的局面正在改变,加之长江口越江通道的建成通车,在长江口外形成超深水泊位及超深水航道的条件已渐趋成熟。利用长江口外-15m以深的天然水深建设海上人工岛,就可达到-20m以深的航道水深,打造河口深水大港,使之成为长江流域水水中转、海陆联运的桥头堡;而整治、疏浚工程所产生的大量泥沙,又为促使横沙东滩及其邻近沙洲加快成陆创造了条件。通过疏浚、促淤、造陆的三位一体,预计可在未来20a间长江口南港与北港之间、北槽主航道两侧形成500多km2的河口岛群,发育塑造成为长江河口的亚三角洲体系。
Currently,it is the best time to develope the Yangtze River Estuary.With the conduct of the Yangtze Estuary Deepwater Channel Regulation Project and the Yangtze Estuary passage across the river being opened to traffic,the time is ripe for us to build super-deep water berths and super-deep water channel.If we build a man-made island on the base of deep-water channel of 15m at the Outer Zone of the Yangtze Estuary,deep-water channel of 20m would be reached and deep-water Grand Port could be built which would become the bridgehead of land-and-sea coordinated transport in the Yangtze River Basin.Correspondently,large amount of sediment created by the Yangtze Estuary Deepwater Channel Regulation Project will create favorable conditions for accelerating the Hengsha eastern tidal flat and its surrounding sandbars into land.By the trinity of dredging,accelerative silting and the land reclamation,it is estimated to form the island groups over 500 square kilometers and shape the sub-delta system between the South Port and the North Port in the Yangtze River Estuary,and on both sides of the main channel in the north channel in the next 20 years.
出处
《长江流域资源与环境》
CAS
CSSCI
CSCD
北大核心
2011年第4期385-390,共6页
Resources and Environment in the Yangtze Basin
关键词
北槽深水航道
长江口亚三角洲
长江流域
上海
deep-water channel in the north channel
the sub-delta system in the Yangtze River Estuary
the Yangtze River Basin
Shanghai
