Table 1 Explanatory variables and corresponding indicators.
Influencing factors | Index layer | Indicator description | Unit | Variable name |
|---|---|---|---|---|
Blue-green landscape indicators (BGit) | Blue landscape | Percentage of water in the city | % | blue |
Green landscape | Percentage of green space in the city | % | green | |
Blue-green landscape | Percentage of blue and green in the city | % | bg | |
Environmental quality indicators (ENit) | Climate conditions | The average temperature in January | ℃ | tmp |
Air quality | Annual average PM2.5 concentration | µg/m3 | PM | |
Economic development indicators (ECit) | Economic development level | Regional GDP per capita | 10,000 CNY | PGDP |
Economic StructureII | Share of secondary industry in GDP | % | IndII | |
Economic StructureIII | Share of tertiary sector in GDP | % | IndIII | |
Public service indicators (PUit) | Cultural resources | Total public library collections per million people | 10,000 books | library |
Educational resources | Number of general primary and secondary school teachers per 100 people | person | teacher | |
Medical resources | Number of practising (assistant) physicians per 100 population | person | doctor |
