Is Qinling Huaihe River Line a North-South Divide?

To the north of the Yangtze River are: Heilongjiang, Jilin, Liaoning, Hebei, Shaanxi, Shanxi, Shandong, Henan, Jiangsu, Anhui, Hubei, Sichuan, Gansu, Xinjiang, Ningxia, Inner Mongolia, Beijing and Tianjin.

South of the Yangtze River are: southern Jiangsu, southern Anhui, Zhejiang, Shanghai, Hunan, Jiangxi, Fujian, Yunnan, Guizhou, Sichuan, Chongqing, Guangxi, Guangdong, Hong Kong, Macau, Hainan and Taiwan Province provinces.

Qinling Huaihe River Line:

Qinling Huaihe River Line runs through Gansu, Sichuan, Shaanxi, Henan, Anhui and Jiangsu provinces. Qinling-Huaihe line is not only the dividing line between south and north fields, but also the dividing line between climate, vegetation, river hydrology, topography, soil, minerals and agriculture.

Qinling-Huaihe line is not only the dividing line between north and south, but also the dividing line of 10/month 1℃. The boundary between subtropical zone and warm temperate zone, the boundary between humid zone and semi-humid zone, the boundary between subtropical evergreen broad-leaved forest and temperate deciduous broad-leaved forest, and whether the river has the boundary of ice age; But also that boundary between paddy field and dry land.

The dividing line between two crops a year and three crops a year is the dividing line between rice and wheat planting; It is the dividing line between the Yangtze River basin and the Yellow River basin, and its geographical position is quite important. Of course, a key node is not absolutely divided according to this.