The northeast of Guanwai was the "land of Longxing" in Qing Dynasty. Why did Qianlong allow some messy people to break in?

According to statistics, the population of middle and lower leaves has reached 300 million during the Qianlong period. You know, in the 17 and 18 centuries, the world population was less than 10 billion, and the land and grain output of the Central Plains could not support so many people at that time, so these people had to move northward to the "Longxing Land" in Manchu. So Qianlong was forced. If these refugees are not allowed to move northward, they will rebel, which is the result that Qianlong does not want to see.

As we all know, the Qing Dynasty was ruled by Manchu. At that time, after the Manchus entered the customs, almost all their belongings moved into the customs. However, during the period from Huang Taiji to Kangxi, the rulers thought that Shanhaiguan Pass was a "land of prosperity" for Manchu people and should be protected. In fact, it was because the rulers of the Qing Dynasty wanted to leave a retreat for themselves. If the rule in the customs is not smooth, they can at least retreat to the customs. However, in the Qianlong period, with the efforts of three generations of Kangxi, Yongzheng and Qianlong, the rule of the Qing Dynasty in Shanhaiguan was more or less completely stable, so it was not so difficult to understand that Qianlong could order these refugees to move northward.

Secondly, at that time, the population in Shanhaiguan Pass increased sharply, and disasters occurred year after year, resulting in refugees becoming disasters. At the same time, corruption still existed in the government, which made it more difficult for the Qing Dynasty to help refugees. Although Qianlong wanted to continue to protect Longxing's land, under the pressure of refugees, he had to acquiesce in the practice of letting refugees move north in order to prevent them from growing further and causing riots.

At the same time, there is a lot of high-quality soil in the north. If it is used to produce food, it can really reduce the pressure on refugees. Therefore, as a monarch, Qianlong is indeed a rare and promising monarch who can get rid of the orders of his ancestors at this point.