长江口南槽航道进一步开发的基本思路及框架*

以长江口南槽河势现状及碍航性质为切入点，分析南槽航道开发条件，并探讨其进一步开发的基本思路及框架。研究分析表明，南槽河势在长江口深水航道治理和南汇边滩围垦等工程作用下处于相对稳定阶段，航道开发条件良好，但同时面临九段沙湿地国家级自然保护区和邻近港口航道安全运营等约束限制。为进一步开发南槽航道，应着眼于河口整体性，统筹兼顾、协同开发；立足于航道条件，整体规划、分期推进；注重开发时机，因势利导、择机实施。

Basic idea and framework on further development of navigation channel of south passage in the Yangtze estuary

According to the current situation of river regime and navigation-obstructing properties in the south passage,we analyze the development conditions of the south passage waterway,and discuss the basic idea and framework of further channel regulation.The study result reveals that the river regime of the south passage is relatively stable due to the Yangtze estuary deepwater channel improvement project and reclamation work of Nanhui eastern side flats,therefore it is in a good state of waterway exploiting.But the channel development may be restricted by Jiuduansha wetland national nature reserve zone and safe operation of nearby port and waterway.For the further development of the south passage waterway,we should focus on the estuary integrity,stand on the channel condition,and emphasize the construction opportunity.