STUDY ON THE CHANGES OF POPULATION OF THE URBAN AGGLOMERATION AREAS——THE CASE OF YANGTZE RIVER DELTA,PEARL RIVER DELTA AND BEIJING-TIANJIN-TANGSHAN REGION
基于中国第三、四、五次人口普查数据，分析了长三角、珠三角和京津唐地区的人口增长与空间分布变化，发现人口向城市群集中、增长加速，并讨论了长期趋势和规律。
Based on the data of the third,fourth and fifth national population censuses in China,this paper analyzes the change of population growth and spatial distribution of Yangtze River Delta,Pearl River Delta and Beijing-Tianjin-Tangshan Region.Research shows that since 1980s,the population growth in urban agglomeration areas has accelerated,the population scale has been expanding continuously;the population distribution has changed to a great extent,of which the general trends are centralization;the states of the population change have phased differences;the main factor of the population change is the immigration.Based on those,the paper also tries to discuss the trend and the law of population change in the development process of urban agglomeration area.It comes to the conclusion as follows: the population change of urban agglomeration area comply with laws of Logist Curve,wave moving,circle expanding and grade spreading;the population growth will slow down in the long run;the distribution will step into a relative equilibrium finally.