Table 4. Area and proportion of logical coding of ecological service categories.
| Logical coding of ecological sources type | The ecological service type corresponding to the logical code of ecological sources | Area of ecological sources type (km2) | Area ratio (%) |
|---|---|---|---|
| 0000 | Non-ecological sources | 133,585.7 | 61.79 |
| 0001 | Leisure and recreation services | 1,978.31 | 0.92 |
| 0010 | Carbon fixation services | 10,434 | 4.83 |
| 0100 | Soil and water conservation services | 25,477.83 | 11.78 |
| 0110 | Soil and water conservation services, carbon fixation services | 20,520.31 | 9.49 |
| 1000 | Water production services | 11,372.3 | 5.26 |
| 1010 | Water production services, carbon fixation services | 1,354.78 | 0.63 |
| 1100 | Water production services, soil and water conservation services | 4,702.49 | 2.18 |
| 1110 | Water production services, soil and water conservation services, carbon fixation services | 6,763.19 | 3.13 |