川南经济区包括自贡、宜宾、泸州、内江、乐山五市,是四川省人口密度较高、经济实力较强、工业化进程较快、城镇化水平较高的区域,区内有3个内河港口,即泸州港、宜宾港和乐山港(以下简称泸、宜、乐港口)。泸、宜、乐三港口地理位置邻近,经济腹地重叠,将它们进行资源整合,构建“川南 The south Sichuan economic zone includes Zigong, Yibin, Luzhou, Neijiang and Leshan five cities. It is an area with high population density, strong economic strength, rapid industrialization and high urbanization in Sichuan Province. There are 3 inland river ports in the zone, Namely Luzhou Port, Yibin Port and Leshan Port (hereinafter referred to as Lu, Yi, Le Harbor). Lu, Yi, Le three ports close geographical location, the economic hinterland overlap, they will be resource integration, build ”Southern Sichuan