Table 1 Details of environmental variables used in habitat suitability modeling of Amygdalus scoparia in Fars Province, southern Iran
S/n | Variable | Variation range | Unit |
|---|---|---|---|
1 | Bio 3 (isothermality) | 32–43 | Dimensionless |
2 | Bio 4 (temperature seasonality) | 5784–9017 | °C |
3 | Bio 13 (precipitation of wettest month) | 27–86 | mm |
4 | Bio 14 (precipitation of driest month) | 0–2 | mm |
5 | Bio 15 (precipitation seasonality) | 79–126 | Fraction |
6 | Bio 17 (precipitation of driest quarter) | 0–17 | mm |
7 | Bio 19 (precipitation of coldest quarter) | 66–201 | mm |
8 | Altitude | 117–3735 | m |
9 | Slope | 0–59.18 | % |
10 | Aspect | 1–9 | - |
11 | Soil type | 1–13 | - |
12 | CTI (compound topographic index) | 3.92–19.15 | - |
13 | HLI (heat load index) | 0.53–1.14 | - |
14 | NDVI (normalized difference vegetation index) | −0.08–1 | - |