The definition of the new Qin dynasty?

From the unification of Qin Dynasty to the Western Han Dynasty, with the development of immigrants from counties in the northwest frontier, the farming economy has been greatly promoted to the northwest, and the farming area has expanded to the foot of Yinshan Mountain. To the south of Qin Changcheng, buildings are connected and villages are opposite, among which "Henan Land" (Note: refers to the area north of Guanzhong Basin and south of the Yellow River. ) Emerging agriculture is particularly prosperous, comparable to Guanzhong area, which was called "New Qin" at that time.

Another way of saying it is: the whole territory of Ningxia, including Shuofang and Beidi counties, is called Xinqin Middle School.