Abstract:

For a long time the three megalopoleis have been centers of China's economy, culture and transportation. Through an analysis of migration data of 2000 census in China and using GIS and spatial statistical methods about migration direction and distance in the three large cities, this paper shows that there are four factors which effect population quantity of migration flow: economic gap, population quantity, geographical distance and climatological disparity. Here a model of population flow quantity is created in reference to Giffer's population gravity model.

Key words: population migration, spatial statistics, migration distance