1. Minnan area refers to Xiamen, Quanzhou, Zhangzhou, Longyan Xinluo District and Zhangping in the southeast of Fujian Province. Minnan dialect is widely used, which is mainly divided according to language, culture and customs.
2. Xiamen, Zhangzhou, Quanzhou and Datian, Longyan Xinluo District and Zhangping in Sanming belong to the southern Fujian area, and the Minnan dialect (Heluo, or Fujian dialect) is widely spoken.
3. Putian dialect, the popular language in Putian, originates from the Minnan language system, but it has great differences in modern times, and can no longer communicate with Minnan language in other regions.
4. Although the administrative divisions of Xinluo District and Zhangping City in Longyan City are closely related to the west of Fujian Province, their geographical location, ancestry, language, culture and customs belong to the south of Fujian Province, and historically, Xinluo District and Zhangping City in Longyan City belong to Zhangzhou City.
5. Therefore, South Fujian in a narrow sense only refers to Xiamen Quanzhou Zhangzhou Longyan Xinluo District and Zhangping.