The watershed between the Yangtze River Basin and the Pearl River Basin is Nanling.
Qinling Mountains are divided into narrow Qinling Mountains and broad Qinling Mountains. In a narrow sense, Qinling Mountain is limited to the mountain range between Weihe River and Hanjiang River in the south of Shaanxi Province, bordering Bahe River and Danjiang River Valley in the east and Jialing River in the west. The Qinling Mountains in a broad sense are the east-west mountains that run across the central part of China. It starts from Baishi Mountain in the north of Lintan County in Gansu Province in the west and enters Shaanxi in the south of Tianshui in the east. At the junction of Shaanxi and Henan, it is divided into three branches, Xiaoshan in the north and Xiong 'er Mountain in the middle. The south branch is Funiu Mountain. It is about 1600 km long and is the watershed between Weihe River, a tributary of the Yellow River, and Jialing River and Hanshui River, tributaries of the Yangtze River. Because the temperature, climate and topography in the north and south of Qinling Mountain show different changes, the Qinling-Huaihe River line has become the most important geographical dividing line between north and south in China. Qinling Mountain is regarded as the Long Mai of Chinese civilization. The main peak of Taibai Mountain is 377 1.2 meters above sea level, located in Baoji City, Shaanxi Province. Qinling Mountain is the boundary mountain between Guanzhong Plain and southern Shaanxi Province.
Nanling is the general name of Nanshan District in Chu State (the area connected with Hunan, Guangxi, Jiangxi and Guangdong provinces) by the imperial court and its related personnel since Qin and Han Dynasties, so Nanling refers to the mountainous area connected with Hunan, Jiangxi, Guangdong and Guangxi Zhuang Autonomous Region in China. Scope: From Guilin, Guangxi in the west to Dayu County, Ganzhou City, Jiangxi Province in the east. The northern line is the southern part of Shaoyang City, Hunan Province-the majority of Yongzhou City-the southern part of Chenzhou City, and the southern line is the northern part of Hezhou City, Guangxi-the northern part of Qingyuan City, Guangdong Province-the northern part of Shaoguan City.
Nanling is a name defined in Qin and Han Dynasties (related to the concept of Lingnan), which is the watershed between the Yangtze River system (Li Dongting Lake system-Poyang Lake system) and the Pearl River system and surrounding mountains. It is not the southern mountain range that contemporary people usually say, so it generally does not include Yunling in Yunnan, Miaoling Mountain in Guizhou and Dayao Mountain in Guangxi-Da Gui Mountain in Guangdong. Nanling is larger than Wuling: Nanling and Lingnan are regional concepts, and Wuling is a representative mountain range in Nanling. Five strategic stations related to the important route of southern expedition in the early Qin and Han Dynasties were highlighted, which were called Wuling, namely Yuechengling, Dupangling, Zhu Meng, Qitianling and Dayuling. Later it was called a mountain, or even a mountain. Other mountain ranges in Nanling: Guilin Ocean Mountain in the north of Qingyuan, Jiuyi Mountain in Yongzhou, Xianghualing Mountain in Chenzhou, Qiwei Mountain and Dadong Mountain in the north of Shaoguan, Dayao Mountain and Lingwei Mountain in the north of Shaoguan, Qingyun Mountain in the northeast of Shaoguan (the main peak is at the junction of two provinces) and Jiulian Mountain (the main peak is near the provincial boundary), and 300 Mountain in the southeast of Ganzhou (crossing the junction of three provinces).