Table 5 Percentage Influence and Scale Value of individual themes for the overlay analysis.

1.

Geology (GY)

Barakar formation

4

Bastar gneissess

1

Chandrapur group

3

Lameta group

3

Mahadeva formation

4

Raigarh formation (sandstone)

2

Talchir formation

4

Kamthi formation

4

Raigarh formation

2

Deccan trap

3

Chhotanagpur gniessic rocks

1

Unclassified metamorphic

1

2.

Geomorphology (GMY)

Structural plain on Gondawana rocks

4

Denudational plateau on magmatic and metamorphic rocks

1

Denudation hills and valleys on proterozoic rocks

2

Region of denudation hills on Gondwana rocks

4

Structural plateau on proterozoic rocks

3

Pediment/pediplain

3

Structural plain on proterozoic rocks

3

Region of Plateau

2

3.

Lineament (LM)

0–400

1

400–800

2

800–1600

3

1600–2400

4

2400–3200

4

4.

Soil texture (ST)

Gravelly, sand

4

Sandy clay loam, clay loam

4

Silt loam, loam

3

Loamy sand, sandy loam

2

Clay, silt clay

1

5.

LULC

Agricultural land

4

Shallow water body

4

Deep water body

4

Dense forest

3

Open forest

3

Fallow land

4

Barren land

2

Scrubland

3

Settlement

1

6.

Drainage density (DD)

0–1 km/km²

4

1–2 km/km²

3

2–3 km/km²

2

3–4 km/km²

1

7.

Slope (S)

0–2%

4

2–4%

4

4–6%

3

6–8%

2

8–35%

1

8.

Curvature (C)

Concave

4

Linear

3

Convex

2

9.

Rainfall (R)

1200–1300 mm

2

1300–1400 mm

3

1400–1500 mm

4

1500–1600 mm

4

1600–1750 mm

4