Correlation coefficient | GDP | Water resource | Wastewater discharge | Water pollution control investment | FER publication number |
---|---|---|---|---|---|
Population (× 106) | 0.972*** | 0.405 | 0.996*** | 0.819* | 0.902* |
GDP (× 109 RMB) |  | 0.197 | 0.979*** | 0.923** | 0.968*** |
Water resource (× 109 m3) |  |  | 0.360 | − 0.068 | 0.098 |
Wastewater discharge (× 106 m3) |  |  |  | 0.845* | 0.924** |
Water pollution control investment (× 109 RMB) |  |  |  |  | 0.977*** |