Why didn't the Ming Dynasty immigrate to the Northeast on a large scale?

1. With the productivity level at that time, the natural conditions in the northeast were too bad, and the land in Guanzhong 13 province was enough to support these people. Let's just muddle along!

2. After the Qing Dynasty entered the customs, people were forbidden to leave the customs on the grounds that the northeast was the root of Manchu. Therefore, in the Ming and Qing Dynasties, although the Northeast belonged to China in name, it basically had no actual control.

3. Until the late Qing Dynasty and the early Republic of China, the country was divided and the people were miserable, and warlord Zhang Cai immigrated from Shandong and other places on a large scale. This is the history of "creating Kanto", and it is also the reason why many Northeasters have their ancestral homes in Shandong. But at this time, Northeast China is not the core area of the central government. Therefore, after the September 18th Incident, Japan occupied Northeast China in an all-round way, and Chiang Kai-shek's reaction was not particularly strong. It was only after the July 7th Incident that the war of resistance was launched in an all-round way.

After World War II, especially after the founding of the People's Republic of China, Northeast China, as a long-term heavy industry center (the inheritance left by the Japanese), has become an inseparable part of China, and it will not be like Tibet in Xinjiang now.