江南地区地处我国流量最大、河面最宽的最大河流———长江的中下游 ,并向浩瀚无边的太平洋敞开。自远古以来 ,水路交通发达便是这一地区的基本特色 ,与此相适应 ,其海上交通发展的历史也相当悠久 ,到秦汉时期 ,其海上交通得到进一步发展 ,并形成了固定的交通路线及其港口。 Jiangnan region is located in China’s largest flow, the largest river --- the largest river in the middle and lower reaches of the Yangtze River, and open to the vast boundless Pacific Ocean. Since ancient times, the development of waterway traffic has become the basic feature of this area. Corresponding to this, the history of maritime traffic development has also been rather long. During the Qin and Han dynasties, the maritime traffic was further developed and a fixed traffic route was formed. Its port.