川南四市紧紧相连,无论从饮食习惯、人文环境、工业结构、发展基础等方面,都有着一衣带水的关系,然而,川南四市在整个工业发展的大环境下,泸州和宜宾依托相对优越的水路、空运、高速等条件,发展较好。而内江和自贡则受地理、交通条件的限制,以及思想观念的束缚,发展相对滞后,GDP排名靠后。川南本为一家 Four cities in South Sichuan are closely linked with each other, no matter in terms of diet, human environment, industrial structure, or development basis, there is a relationship between clothing and water. However, in the four industrial areas in southern Sichuan, Luzhou and Yibin rely on comparatively superior Waterway, air transport, high-speed and other conditions, the development of better. The Neijiang and Zigong are subject to geographical constraints, traffic conditions, and the shackles of ideas and concepts, the development is relatively lagging behind GDP rankings. This is a South Sichuan