Huainan immigration tide

The 30-degree north latitude line passes through the south of Hangzhou, Zhejiang, the north of southern Anhui, the provincial boundary of northern Jiangxi, the plain on the south bank of the Yangtze River in Hubei and central Sichuan. If the northern part of Sichuan is excluded (see explanation below), the southern part north of the 30 ~ (th) latitude line is equivalent to the Jianghuai area, the Hanshui River basin and the south bank plain of the Yangtze River, which is basically consistent with the densely populated areas mentioned in this paper. This is not accidental, because today's population distribution is the result of population migration again and again in history, and the population migration to the south after the Jingkang Rebellion was the last large-scale migration of the northern population to the south. This can't help but make us think, is it because of the difference of population proportion in different areas when the northern immigrants moved in, which makes the form of national integration different from the formation and development of the Han nationality, thus affecting the difference of human immunoglobulin? Therefore, it is necessary to explore the relationship between the formation and development of northern immigrants and the Han nationality from the three regions of North, Central and South. Yunnan-Guizhou Plateau is a blank area of immigrants in three waves of immigrants. Since Ming and Qing Dynasties, a large number of immigrants from the south of China began to move in, which is not within the scope of discussion. Population replacement in the north and the south and the formation and development of the Han nationality. The north and the south here refer to Daba Mountain-the Jianghuai area and the Hanshui River basin north of the Yangtze River. As for the non-Han people in the south, Hanshu has biographies of neighboring nationalities such as Southwest Yi and Guangdong. Southwest Yi refers to Yelang, Mo, Yi, Migration and Baima, which are distributed around Ba and Shu, and now in the Yunnan-Guizhou-Sichuan Basin. Guangdong refers to southern Guangdong and eastern Guangdong, distributed in southern Guangdong, Guangxi, Fujian and Zhejiang. The Book of the Later Han Dynasty includes Biography of Nan Man and Southwest Yi. Nanman refers to Wuling Man, Shang Yue Man, Baxian Nanjun Man and Banxun Man. Except Shang Yue, which is located in the territory of present-day Vietnam, the rest are located in the western Hunan and Hubei and the eastern mountainous areas of Sichuan, and the westernmost reaches Langzhong (now Langzhong, Sichuan) in Ba County. Accordingly, the southern and northern regions have experienced the gradual southward migration and ethnic integration of the Chinese nation since the pre-Qin period, and most of them have become the living areas of the Han nationality in the Han Dynasty. However, due to some non-Han immigrants in the Southern and Northern Dynasties, the western region of Jianghuai in the Sui Dynasty was left-handed. Since then, after the great integration of the Sui and Tang nationalities, there have been no traces of Han members in Jianghuai (excluding new immigrants). Therefore, the early Han nationality in this area was formed before the Han Dynasty, which had little to do with the three waves of migration from the north to the south. However, since then, China has been in the period of north-south division, and the population has changed many times due to immigration, but the immigration from the north has a great influence on the development of the Han nationality in the later period. This area is the connecting zone between the north and the south of our country. Once the north and south are divided, it will become the geographical and basic battlefield of military confrontation of separatist regimes, including the confrontation between Wei, Jin, Southern and Northern Dynasties, Five Dynasties and Ten Kingdoms, and the confrontation between the Southern Song Dynasty and Jin Dynasty and between the Southern Song Dynasty and Mongolia (Yuan Dynasty). When the war came, the local population was seriously reduced, or they died in battle, or were forced to take refuge in Jiangnan, and only a few people stayed in the local area. At the same time, northern immigrants must first enter this area, and some immigrants have already settled here. As a result, new immigrants from the north have replaced the people who used to live here and become the main part of the population. Therefore, the three waves of population migration to the south have created conditions for large-scale population replacement and provided the main source of the Han population. As early as the Three Kingdoms and the Jin Dynasty, there were several population changes in the north and south. The History of Counties and Counties in Song Dynasty describes the evolution of Huainan County (Wei Chu in the Three Kingdoms Period, equivalent to the eastern part of Jianghuai area in Anhui Province today): "In the Three Kingdoms Period, Jianghuai was a battleground for military strategists, with hundreds of miles of people who did not live in it. These counties are located in Huainan, north of the Yangtze River, where there are no people and no complicated households. Wu Ping, the people each paid their debts, so he replied to Zhao Tongmao, Chen Qi and others, "Study on the Isomorphism of Immunoglobulin in China: A Hypothesis of the Origin of Chinese Nation", Journal of Genetics 18, No.2, 199 1 year. (2) Geography of Sui Shu (3 1). Li Yan. Later, there was chaos in the central plains, and the tigers invaded the south many times, and Huainan people went south. At the beginning of the Emperor, the rebellion between Su Jun and his ancestors in the Jianghuai area was big, and the number of people in the south increased. They are counties established by Huainan County and overseas Chinese in the south of the Yangtze River. At the end of Jin Dynasty, they cut Danyang from Huxian to Huainan. " These three countries have been at odds for more than half a century. The so-called "Wuping, the people pay their debts" does not mean that the original residents moved back to their hometown, but immigrants moved in. Similar population migration occurred not only in Huainan County,