The history of migration in Northeast China in the XX-XXI centuries.

The subject of this article is the analysis of internal migration processes in Northeast China from the 20th century to the beginning of the 21st century. Special attention is paid to the dynamics of migration flows and their significant impact on the demographic situation of the region. The author examines the specific features of internal migration in different provinces: Liaoning with its subprovincial cities demonstrates a net influx of population, while Jilin and Heilongjiang provinces are characterized by a significant net outflow of population. The author explores the causes of these migration processes and their direct impact on the demographic development of the Northeast region of China. This allows us to better understand the significant changes taking place in underdeveloped regions of China and identify the main factors affecting internal migration. The study used statistical analysis of data on migration flows, demographic studies, as well as comparative analysis of data from various provinces of Northeast China to identify key factors affecting internal migration. The scientific novelty of this study lies in a detailed analysis of internal migration processes and their impact on the demographic situation in Northeast China, which has not been studied in depth before. The study revealed that the region is facing serious problems such as resource depletion and insufficient economic growth, which leads to negative population growth. Negative growth is characterized by significant regional imbalance: most prefectural-level cities, with the exception of Shenyang, Dalian and Changchun, show negative population growth. Especially high rates are observed in Suihua and Daxinganlin in Heilongjiang Province. The population of the border areas has decreased by almost a fifth. The findings of the study confirm that the population in Northeast China continues to decline, accompanied by a marked decrease in the birth rate. This steady decline requires effective measures to slow it down. The outflow of population from the northeast is increasing, while the departing population is usually younger and more educated, which leads to an acceleration of the aging process and loss of human capital. The main features of the region's demographic trends are net population outflow and migration, which makes it an excellent example for studying demographic changes in underdeveloped regions.

Internal migration, Demographic dynamics, Northeast China, Population outflow, Migration flows, Economic growth, Demographic changes, Socio-economic structure, Household registration policy, Sustainable development