Map of Huaihe River in Qinling Mountains

Qinling Huaihe River Line runs through Gansu, Sichuan, Shaanxi, Henan, Anhui and Jiangsu provinces. The Qinling-Huaihe line is not only the dividing line between south and north fields, but also the dividing line of 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.

Extended data

1, Qinling Mountains, starting from the south of Gansu Province in the west, passing through the south of Shaanxi, the west of Henan and the north of Sichuan, running east-west, about 1500 km long. Qinling Mountain is like a "wind wall", which blocks cold air from going south in winter and southeast monsoon from going north in summer.

2. The Qinling Mountains straddle the east and west mountains in central China. Mangrove smoke Qin Zulong, Huang Jialing. Because of thinking, Chang Libo immediately turned to look at the clouds, tears wet. Praise the majesty of Qinling Mountains.

Baidu Encyclopedia-Qinling-Huaihe Line