In the early years of Ming Dynasty, why did you implement the "Great Migration of Sophora japonica in Hong Tong"?

I visited Majuqiao Town in Beijing and Zhangziying Town in Daxing District for many times, and went to the National Library to consult a large number of local documents, including the local chronicles of Tongzhou and Daxing District, and found that there were a lot of records about the migration of Sophora japonica in Hongdong, Daming, which completely confirmed the records of the migration of Sophora japonica in Ludong and Hongdong. In addition, I collected related surnames and genealogies in recent years.

The first is the historical record of the great migration of Sophora japonica in Hongdong in Ming Dynasty in Gyeonggi area. A brief summary of relevant records is as follows: 1. "In the second year of Yongle in the Ming Dynasty (1404), he moved to Pingyang House in Taiyuan, Shanxi Province and various households in Ze, Lu, Liao, Qin and Fenzhou to enrich the Beijing area."

2. "In the fifth year of Yongle (1407), Shanglin Garden Supervisor was established in May, with ten departments including Fanyu Department and Liangmu Department. Fanshi Department was set up in Cai Weili (now Cai Yu Town, Daxing), and 5,000 households moved to Pingyang Prefecture, Shandong, Dengzhou, Laizhou and other places were under the supervision of Shanglinyuan. Some immigrants are placed in Fan Yubu to raise chickens and ducks for the imperial court. "

3. "During the Hongwu and Yongle Dynasties of the Ming Dynasty, one was to let the nationals who migrated in the last few years return to their hometowns to resume their businesses, and the other was to move landless or landless farmers from Shanxi and other places to Beijing to farm." 4. "There are more than 60 villages named after them, most of which were formed in the Ming Dynasty. Among them, more than 40 natural villages were built by Shanxi and Shandong immigrants in the early Ming Dynasty, and most of them were named after their original counties, such as Lucheng camp, Qinshui camp, Xiaoyi camp, Hejin camp, Changzi camp, Zhou Pu camp, Shanxi camp, Datong camp, Tunliu camp, etc., and the descendants of local immigrants said.

Second, the great significance of the great migration of Sophora japonica in Hongdong in Ming Dynasty: 1. In the early Ming Dynasty, the great migration of Sophora japonica in Hongdong was a large-scale migration movement from top to bottom with "Sophora japonica in Hongdong" as the center, which balanced the population resources in the whole country, optimized and revitalized the land resources, realized the effective ratio of labor force to land to be cultivated, and achieved great political stability, economic development and national border defense.

2. The Great Migration Movement of Hongtong Sophora japonica is a passive and compulsory migration. The ancestors traveled long distances to other places to develop production, creating a great and immortal immigrant cultural spirit.

3. The great migration movement of Sophora japonica in Hongdong in the Ming Dynasty achieved the goal of "land to the tiller", which made the frontier defense in northern Xinjiang of the new dynasty stable and peaceful. Immigrants and local garrisons perform their respective duties, forming a new development model of the integration of national defense and civilian technology.