Table 1 Environment characteristics of sampling sites in mountainous regions of west Sichuan, China
Region | Site | Number of quadrats | FA (years) | Elevation (m) | Gradient (°) | Aspect (°) | Bed rock | CK | Neighboring vegetation |
|---|---|---|---|---|---|---|---|---|---|
SR1 | JJS3 | 8 | 2.5 | 4116 | 81 | 155 | Sandstone | JJS3 | Subalpine meadow |
ZGX1 | 10 | 4 | 2640 | 71 | 137 | Limestone | QQH1, ZGX2 and ZGX1 | Mixed broadleaf and coniferous forests | |
ZGX2 | 14 | 4 | 2430 | 85 | 310 | Limestone | QQH1, ZGX2 and ZGX1 | Abandoned farmland | |
QQH1 | 13 | 13 | 2164 | 80 | 65 | Limestone | QQH1, ZGX2 and ZGX1 | Abandoned farmland | |
JJS1 | 12 | 8 | 3448 | 90 | 70 | Sandstone | JJS1 | Subalpine meadow | |
JJS2 | 12 | 8 | 3187 | 80 | 50 | Sandstone | JJS2 | Coniferous forest | |
HDZ1 | 12 | 27 | 2353 | 75 | 315 | Limestone | QQH1, ZGX2 and ZGX1 | Mixed broadleaf and coniferous forests | |
SR2 | XYZ1 | 19 | 2.5 | 1043 | 88 | 135 | Sandstone | XYZ1 | Artificial fir forest |
JHZ1 | 15 | 1.5 | 1110 | 65 | 100 | Sandstone | BSC1 | Artificial fir forest | |
BSC1 | 11 | 1.5 | 949 | 70 | 35 | Limestone | BSC1 | Artificial fir forest | |
BSC2 | 14 | 1.5 | 1003 | 64 | 5 | Sandstone | BSC2 | Artificial fir forest | |
HBZ1 | 9 | 5 | 1285 | 82 | 0 | Limestone | BSC1 | Artificial fir forest | |
BSH1 | 15 |  > 60 | 1143 | 90 | 135 | Sandstone | BSH1 | Artificial fir forest |