长江是我国的第一大河流,流经青、藏,滇、川、鄂、湘、赣、皖、苏和沪等省市。它全长6300公里,通航里程3638公里。为我国西南、华中、华东地区经济发展提供了极为有利的水上通道。长江目前有25个主要港口,每个港口又管辖若干港务站,港口是航运生产的起点和终点,与铁路、公路、航空、管道衔接,具有枢纽的作用.港口又是城市的门户,港口建设将 The Yangtze River is the largest river in our country and flows through the provinces of Qinghai, Tibet, Yunnan, Sichuan, Hubei, Hunan, Jiangxi, Anhui, Shanghai and Shanghai. It has a total length of 6,300 kilometers and a navigation mileage of 3,638 kilometers. It provides a very favorable waterway for the economic development of southwest China, central China and eastern China. There are currently 25 major ports in the Yangtze River, each with several ports under its jurisdiction. The port is the starting point and end point of shipping production and plays a pivotal role in connecting with railways, highways, aviation and pipelines. The port is also the gateway to the city and the port construction will