Table 2.
Carbon emission coefficients for each type of land use and each major energy source.
| Land Use Type | Carbon Emission Factor (t/km2) | Energy | Carbon Emission Factor (t/tce) | Energy | Carbon Emission Factor (t/tce) |
|---|---|---|---|---|---|
| Cropland | 49.7 [23] | Coal | 0.7559 [32] | Kerosene | 0.5714 [32] |
| Forestland | −64.4 [22] | FC | 0.7559 [32] | RDG | 0.4602 [32] |
| Grassland | −2.4 [25] | Coke | 0.8559 [32] | LP | 0.5042 [32] |
| Water | −46 [24] | Crude Oil | 0.5857 [32] | COG | 0.3548 [32] |
| Unused land | −0.5 [21] | Fuel Oil | 0.6185 [32] | Heat | 0.26 [32] |
| UCL | - | Gasoline | 0.5538 [32] | Electricity | 2.5255 [32] |
| Diesel | 0.5921 [32] | BFG | 0.3548 [32] |
Where the carbon emission factor of the land class is less than zero, it means that the land class is a carbon sink class and has carbon absorption capacity; FC—Finished coal; RDG—Refinery Dry Gas; LP—Liquefied Petroleum; COG—Coke oven gas; BFG—Blast furnace gas.