Table 3. Subsystems of the socio-economic-ecological subsystem.
| Item | Expression | Unit |
|---|---|---|
| Social subsystem emergy analysis | ||
| 1. Total emergy used (U) | R+N0+N1+IMP | Sej |
| 2. Emergy per capita (Ucap) | U/population | Sej/cap |
| Economic subsystem emergy analysis | ||
| 3. Emergy extroversion ratio (EER) | IMP+EXP/U+EXP | |
| 4. Emergy to money ratio (EMR) | U/GDP | Sej/$ |
| Natural subsystem emergy analysis | ||
| 5. Emergy self-support ratio | (R+N0+N1)/U | |
| 6. Environmental loading ratio of internal elements (IELR) | (N0+N1)/R | |
| 7. Environmental loading ratio of external elements (EELR) | IMP/R |
Notes.
a
R: local renewable resources.
- N0
- rough non-renewable resources
- N1
- local centralized used resources
- IMP
- import resources
- EXP
- export resources