Reasons for the decline of customer proportion in Song Dynasty

What you want to ask is the reason for the decline in the proportion of customers in the Song Dynasty? Because of the constant war and turmoil in the Song Dynasty.

After the disaster of Jingkang, a large number of Central Plains people migrated to the south in China. This southward movement has two climaxes. The first climax was from "the difficulty of Jingkang" to "the discussion of reconciliation", and the second climax was during the invasion of Zhu Jin and Yan Hongliang, when the population in the south increased greatly.

Compared with the thirty-second year of Shaoxing (1 162) and the first year of Chongning (1 102), the registered population of Liangzhe Road increased by 260,000, that of Jiangnan West Road increased by 420,000, that of Fujian Road increased by 330,000, that of Tongchuan Fu Road increased by 240,000 and that of Weizhou Fu Road increased by 600,000.

In Song Dynasty, Daxing irrigation works, large-scale land reclamation, improved farm tools and rapid agricultural development. Many new types of fields appeared in the Song Dynasty, such as terraced fields (appearing in mountainous areas), silt fields (silt washed by river water), Shatian (sand silt by the sea) and farmland building (making rafts on the lake and spreading mud on them). This greatly increased the area of cultivated land in the Song Dynasty.

In the second year of Daodao (996), the cultivated land area in China was 3125,200 hectares, and it increased to 5,247,500 hectares in Tianxi five years (102 1).