Table 1.
Basic site description from the Mt. Gongga climate gradient.
| Site | Elevation (m a.s.l) | Latitude (°N) | Longitude (°E) | Summer temperature (°C) | GDD | Freezing days | Annual precipitation (mm) | Soil moisture (%) | Biomass |
|---|---|---|---|---|---|---|---|---|---|
| >5 °C | <0 °C | (g/m2) | |||||||
| High alpine | 4130 | 29.9074 | 102.0118 | 6.7 | 112 | 165 | 797 | 0.36 | 136.8 ± 8.8 |
| Alpine | 3850 | 29.8891 | 102.0173 | 8.4 | 130 | 148 | 821 | 0.38 | 248.8 ± 16.4 |
| Middle | 3500 | 29.8619 | 102.036 | 9.9 | 151 | 124 | 775 | 0.46 | 356.8 ± 25.2 |
| Lowland | 3000 | 29.8435 | 102.0343 | 12 | 181 | 90 | 784 | 0.38 | 271.6 ± 17.6 |
The four study sites with elevation, geographical coordinates, growing season mean temperature (June–August), based on data measured at 2 m above ground between 2012 and 2016 (dataset v), growing degree days > 5 °C (GDD), and freezing days with temperatures < 0 °C based on data from 2013 (dataset v), long term annual precipitation from WorldClim version 2.0 for 1970–200045, soil moisture (June–August) measured at 5 cm below ground between 2012 and 2016 (dataset v) and above-ground standing biomass (dataset iii) in the four study sites along the slopes of Mt. Gongga, Sichuan Province, China.