Table 1 Description of the study sites
Site | Property | ||||
|---|---|---|---|---|---|
Plantation | |||||
Tree species | Larix gmelinii | Pinus tabuliformis | Picea crassifolia | Populus simonii | |
Altitude (m) | 2,300 | 2,150 | 2,710 | 2,080 | |
Forest type | Deciduous | Evergreen | Evergreen | Deciduous | |
Conifer forest | Conifer forest | Conifer forest | Broadleaf forest | ||
Soil type | Gray cinnamon soil | Gray cinnamon soil | Gray cinnamon soil | Gray cinnamon soil | |
Stand age (a) | 46 | 32 | 48 | 40 | |
Density (tree/ha) | 1,520 ± 64 | 2,830 ± 256 | 1,570 ± 144 | 1,420 ± 51 | |
H (m) | 12.8 ± 0.3 | 15.0 ± 1.0 | 12.4 ± 3.1 | 7.4 ± 0.8 | |
D (cm) | 10.8 ± 0.2 | 7.9 ± 0.7 | 6.9 ± 1.6 | 5.8 ± 0.6 | |
Control | |||||
Land use | Abandoned land | Abandoned land | Abandoned land | Abandoned land | |
Vegetation type | Grassland | Grassland | Grassland | Grassland | |
Soil type | Gray cinnamon soil | Gray cinnamon soil | Gray cinnamon soil | Gray cinnamon soil | |