Factor | Criteria | Unit | Standard scores for the corresponding class | ||||
Highly suitable (5 scores) | Suitable (4 scores) | Moderately suitable (3 scores) | Unsuitable (2 scores) | Highly unsuitable (1 score) | |||
Topography | Slope | Degree | <3 | 3 - 6 | 6 - 9 | 9 - 12 | >12 |
Elevation | Meter | <1000 | 1000 - 1500 | 1500 - 2000 | 2000 - 3500 | >3500 | |
Soil | Soil humus | (%) | >4 | 3 - 3.9 | 2 - 2.9 | 1 - 1.9 | <0.9 |
Depth soil humus | (cm) | >20.1 | 15.1 - 20 | 10.1 - 15 | 5.1 - 10 | <5 | |
Soil texture | - | Light clay (21 - 30), Sandy (10 - 20) | Mid-siltstone (31 - 45) | Sand (<10) | Heavy clay (45 - 60) | Clay (>60) | |
pH | - | 6.5 - 7.0 | 7.1 - 7.5 6.1 - 6.5 | 7.6 - 8 5.6 - 6.0 | 8.5 - 9 5.1 - 5.5 | >9 <5 | |
Soil stone | % | <5.0 | 6 - 20 | 21 - 35 | 36 - 50 | >50 | |
| Estimated soil organic C | - | >0.50 | 0.35 - 0.50 | 0.25 - 0.35 | 0.15 - 0.25 | <0.15 |
Vegetation | Estimated AGB | % | >75 | 55 - 75 | 30 - 55 | 10 - 30 | <10 |
| NDVI | - | >0.50 | 0.35 - 0.50 | 0.25 - 0.35 | 0.15 - 0.25 | <0.15 |
| LAI (MODIS) | m2 plant/ m2 ground | >60 | 40 - 60 | 20 - 40 | 10 - 20 | <10 |
| GPP (MODIS) | kg C/m2 | >0.035 | 0.02 - 0.035 | 0.01 - 0.02 | 0 - 0.01 | 3.0 - 3.27 |
Climate | Mean temperature summer season | (˚C) | 19 - 22 | 15 - 19 | >22 | 13 - 15 | <13 |
Sum of rainfall summer season | (mm) | >200.1 | 150.1 - 200 | 100.1 - 150 | 50.1 - 100 | <50 | |
Estimated Hydro-Thermal coefficient | - | 1.5 - 2.0 | 1.0 - 1.5 | 0.5 - 1.0 | >2.0 | <0.5 | |
Hydrology | River density | km/km2 | >0.4 | 0.2 - 0.4 | 0.1 - 0.2 | 0.05 - 0.1 | <0.05 |
Permafrost distribution | - | Region of seasonal freezing | Sporadic & Prelatic | Island | Dis-continuous | Continuous | |
Water index | - | >0.50 | 0.35 - 0.50 | 0.25 - 0.35 | 0.15 - 0.25 | <0.15 | |
Socio-economic | Distance from settlement area | km | <100 | 100 - 200 | 200 - 400 | 400 - 800 | >800 |
Distance from infrastructure | km | <50 | 50 - 100 | 100 - 300 | 300 - 500 | >500 | |
Distance from surface water resources | km | <3 | 3 - 6 | 6 - 12 | 12 - 15 | >15 |