Table 9 Carbon density (CD) in planted versus natural Chinese pine (Pinus tabulaeformis Carr.) forests across three ages, together with the mean CDs for all planted versus natural Chinese pine forests, in the Lüliang Mountains, China
From: Similar carbon density of natural and planted forests in the Lüliang Mountains, China
Forest | No. of sample plots | Stand age (years) | Elevation (m) | Soil thickness (cm) | Stand density (trees ha−1) | Biomass CD (Mg ha−1) | Soil CD (Mg ha−1) | Total CD (Mg ha−1) |
|---|---|---|---|---|---|---|---|---|
Planted | 3 | 25 | 1471 | 60.7 | 1525 | 21.8 | 124.4 | 146.2 |
3 | 30 | 1398 | 86.0 | 1435 | 29.3 | 155.4 | 184.7 | |
1 | 35 | 1180 | 60.0 | 795 | 20.0 | 90.9 | 110.9 | |
30 | 1350 | 68.9 | 1252 | 23.7 | 123.6 | 147.3 | ||
Natural | 1 | 25 | 1570 | 50.0 | 615 | 9.4 | 139.6 | 148.9 |
1 | 30 | 1523 | 25.0 | 615 | 11.1 | 77.7 | 88.7 | |
1 | 35 | 1915 | 34.0 | 570 | 16.1 | 57.9 | 73.9 | |
30 | 1669 | 36.3 | 600 | 12.2 | 91.7 | 103.8 | ||
All planted | 49 | 19.2 | 1367 | 56.3 | 833 | 18.9 | 106.3 | 125.2 |
All natural | 59 | 63.3 | 1596 | 39.2 | 761 | 34.6 | 93.1 | 127.7 |