Research Article
Spatiotemporal Evolution Pattern and Driving Factors of Higher-Education Population in China
| | Factors | Abbreviation | Description |
| 1 | City location | CL | Provincial capitals: 1, cities adjacent to provincial capitals: 2, other cities: 3 | 2 | City size | CS | Urban built-up areas | 3 | High-speed railway | HSR | Distance from the high-speed railway | 4 | Highway | HW | Quantity of expressway exits in the region | 5 | Average slope | SP | Average slope of the region (°) | 6 | Average elevation | EL | Average elevation of the region (m) | 7 | Gross domestic product | GDP | Gross domestic product density (1000 ¥/km2) | 8 | Nonagricultural population | NAP | Proportion of nonagricultural population to the total population (%) | 9 | Population density | TPD | Total population density (person per km2) |
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