Table 5 Frequency ratio values for the factor classes
Sr No. | Factor | Class | Landslide grid % (x) | Class % (y) | Frequency Ratio (x/y) |
|---|---|---|---|---|---|
1 | Lithology | Dharamshala Group | 100 | 78.37 | 1.28 |
Siwalik Group | 0 | 9.10 | 0 | ||
Chail | 0 | 4.46 | 0 | ||
Limestone | 0 | 8.08 | 0 | ||
2 | Land Cover | Forest | 26.75 | 25.39 | 1.05 |
Sparsely Vegetated Area | 40.13 | 35.58 | 1.12 | ||
Settlement on low to moderate slopes | 0.32 | 33.99 | 0.009 | ||
Settlement on steep slopes | 32.78 | 5.04 | 6.51 | ||
3 | Slope | 0° - 5° | 17.05 | 24.40 | 0.69 |
6° - 15° | 11.91 | 21.45 | 0.55 | ||
16° - 25° | 36.54 | 24.58 | 1.48 | ||
26° - 35° | 27.00 | 19.91 | 1.35 | ||
≥ 35° | 7.50 | 9.66 | 0.77 | ||
4 | Aspect | Flat | 10.20 | 11.07 | 0.92 |
North | 8.89 | 8.06 | 1.10 | ||
North East | 18.84 | 14.05 | 1.34 | ||
East | 8.40 | 8.26 | 1.01 | ||
South East | 13.70 | 16.51 | 0.82 | ||
South | 7.91 | 8.64 | 0.91 | ||
South West | 14.76 | 14.07 | 1.04 | ||
West | 8.32 | 8.17 | 1.01 | ||
North West | 8.97 | 11.16 | 0.80 | ||
5 | Soil Type | Debris | 99.92 | 75.09 | 1.33 |
Clay soil | 0.00 | 18.67 | 0 | ||
Compact Alluvial Deposits | 0.08 | 6.24 | 0.01 | ||
6 | Drainage Buffer | 100Â m | 37.03 | 37.62 | 0.98 |
500Â m | 62.96 | 61.98 | 1.01 | ||
1000Â m | 0 | 0.38 | 0 | ||
7 | Fault Buffer | 1000Â m | 80.17 | 68.74 | 1.16 |
2000Â m | 19.82 | 26.20 | 0.75 | ||
3000Â m | 0 | 5.05 | 0 | ||
8 | Road Buffer | 200Â m | 55.70 | 36.78 | 1.51 |
800Â m | 44.29 | 43.42 | 1.01 | ||
1500Â m | 0 | 16.84 | 0 | ||
2500Â m | 0 | 2.95 | 0 |