Environmental variables | Category | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
Microaspect (degrees) | 0~22.5, 337.5~360.0 | 22.5~67.5 | 67.5~112.5 | 112.5~157.5 | 157.5~202.5 | 202.5~247.5 | 247.5~292.5 | 292.5~337.5 | – | – |
Microaspect | N | NE | E | SE | S | SW | W | NW | – | – |
Inclination (degrees) | 0~5 | 5~10 | 10~15 | 15~20 | 20~25 | 25~30 | 30~35 | >35 | – | – |
Topology | Summit | Ridge | Upper slope | Middle slope | Lower slope | Arid valley | Stream flow | Pond or wet land | – | – |
Microtopolgy | Upper slope | Middle slope | Lower slope | Arid valley | – | – | – | – | – | – |
Substrate | Rock | Boulder | Boulder-cobble | Cobble | Cobble-pebble | Pebble | Pebble-fine grain | Coastal sand | Fine grain | Humus |
Wind exposure | Very strong | Strong | Moderate | Weak | Very weak | – | – | – | – | – |
Moisture | Very arid | Arid | Moderate | Slightly wet | Wet | Very wet | Snow | Â | Â | Â |
Snow cover duration (week) | 0 | 2 | 4 | 5 | >6 | – | – | – | – | – |