Environmental variables | Resolution | Data sources | |
Climate | Precipitation | 1 km | State Key Laboratory of Resource and Environmental Information System, IGSNRR, CAS |
Temperature | |||
Relative humility | |||
Parent material | Parent material type | 1 km | Rasterized from Chinese Geology Map (1:1000,000) |
Topography | Altitude | 90 m | Original DEM was downloaded from SRTM website and derived indexes were generated based on either ArcGIS or specific algorithms |
Slope gradient | |||
Aspect | |||
Profile curvature | |||
Plane curvature | |||
Surface area ratio, SAR | |||
Topographical wetness index, TWI | |||
Geomorphology | Geomorphologic type (genesis type of geomorphology) | 1 km | State Key Laboratory of Resources and Environmental Information System, IGSNRR, CAS |