Table 3. Change in SOC storage from 2002 to 2008 in the Luoyugou catchment.
| Land-use | 2002 | 2008 | SOC | |||||
| Area/km2 | SOC | Area/km2 | SOC | |||||
| Storage/t | Percentage/% | Storage/t | Percentage/% | Increased/t | Sequestration amount/t | |||
| Immature woodland | 8.16 | 19764.05 | 14.62 | 15.48 | 37480.99 | 26.98 | 17716.94 | 3759.91 |
| Mature woodland | 2.35 | 7145.31 | 5.28 | 2.99 | 9087.78 | 6.54 | 1942.48 | 724.92 |
| Orchards | 4.11 | 7377.46 | 5.46 | 10.62 | 19082.52 | 13.74 | 11705.06 | −723.02 |
| Wild grassland | 0.71 | 1374.26 | 1.02 | 1.31 | 2536.62 | 1.83 | 1162.36 | 16.22 |
| Cultivated land | 52.18 | 99557.47 | 76.63 | 37.07 | 70737.09 | 50.92 | −28820.38 | – |
| Total | 67.50 | 135218.55 | 100.00 | 67.46 | 138925.00 | 100.00 | 3706.46 | 3778.03 |
* Because the area of this catchment in 2008 was less than that in 2002, by 0.04 km2, so that about 71.58 t of SOC wasn't taken into the amount of SOC storage. Immature woodland refers to trees under 30 years of age since planting (SOCD = 24.22 Mg/ha), and mature woodland refers to trees more than 30 years of age since planting (SOCD = 30.44 Mg/ha).