Table 2.
The spatial distribution of Qinghai spruce according to published studies.
| Study region | Location | Study area/km2 | Elevation range of study sites/m a.s.l. | Elevation range of forests (m a.s.l.) | Slope aspect range of forests | Literatures |
|---|---|---|---|---|---|---|
| Whole region of Qilian Mountains | 2500~3300 | Shady and semi-shady slope | Liu Xingcong.29 | |||
| Dongxia forest region in Qinghai Province | 101°35′–101° 54′E, 36°56′–37°15′N | 161.86 | 2450~4348 | 2600~3100 | Shady and semi-shady slope | Wang et al.28 |
| Xishui Nature Reserve | 100°03′–100°23′E, 38°32′–38°48′ N | 732.49 | 2000~4000 | 2500~3200 | −67.5°~112.5° | Yang et al.26 |
| Portion of the Qilian Mountains | 98°34′–101°11′E, 37°41′–39°05′N | 10,009 | 2000~5500 | 2600~3400 | −60°~96° | Zhao et al.21 |
| Portion of the Qilian Mountains | 93°23′–104°3′E, 36°2′–40°32′N | 2200~5400 | 2351~3300 | −110°~150° | Xu et al.27 | |
| Pailugou watershed | 100°17′E, 38°32′N | 2.74 | 2642~3794 | 2673.6 (2430)~3202.2 | −162.1°~75.1° (−110°~75°) | In this study |