my country's north-south geographical dividing line
China's north-south geographical dividing line is the dividing line located on both sides of the ancient Huaihe River in Huai'an, Jiangsu Province. (Also known as: Qinling Mountains-Huaihe River Line)
The Qinling Mountains-Huaihe River Line is what we often call the geographical dividing line between north and south China. The north and south of this line are different in terms of natural conditions, agricultural production methods, geographical features and people's living customs.
The Qinling-Huaihe River line passes through Gansu, Shaanxi, Henan, Anhui, Jiangsu and other provinces. It is an important geographical dividing line in central and eastern China. Its north and south have important differences in climate, rivers, vegetation, soil, agricultural production, etc. aspects, there are significant differences. 1. From the perspective of climate characteristics
In most areas north of Qinhuai, rivers and lakes freeze in winter. Whenever winter comes and the north wind blows, most trees will fall off their leaves, and the leaves that do not fall off will mostly be needle-shaped. shape, called coniferous trees.
Because the annual precipitation in the northern region is less and most of the precipitation is concentrated in the summer, the water volume of the rivers is not large and the water level changes greatly. The flood season is only formed in the summer and the time is relatively short. The sediment content of the rivers is relatively high. big. In the area south of Qinhuai, it is just the opposite. There is no ice in winter, the trees do not lose their leaves, and they are evergreen all year round. The water volume of the river is large, the water level does not change much, the flood season is long, and the sediment content of the river water is small.
2. Agriculture and customs
From the perspective of agricultural production and people's living customs, the differences between the north and south of Qinhuai are even more obvious. The cultivated land in the north is dry land, and the main crops are wheat and miscellaneous grains, with two or three crops a year. The south is mainly paddy fields, and the crops are mainly subtropical economic crops such as rice, sugar cane, and tea, with two or three crops a year. What people usually say is "wheat in the north and rice in the south, boats in the south and horses in the north" is a true portrayal of this difference.