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Table 1 Suitability levels of the six parameters

From: Suitability analysis for rice growing sites using a multicriteria evaluation and GIS approach in great Mwea region, Kenya

Scale

Topography

Humidity

Temperature

Soil PH

Soil texture

Soil drainage

Very low suitability

60–100%

< 15

< 18

< 4.0

Sand

E-excessively drained

Low suitability

30 – 60%

15 – 25

> 35

> 8.4

Sandy loam

S-somewhat excessively drained

Moderately low suitability

15 – 30%

25 - 40

19 - 18

4.0 – 5.0

Silt loam

V-very poorly drained

Moderate suitability

8 – 15%

40 - 50

34 - 35

7.8 – 8.4

Loam

W-well drained

Moderately high suitability

5 – 8%

50 - 65

21 - 20

5.1 – 5.5

Silty clay

M-moderately well drained

High suitability

2 – 5%

65 - 80

31 - 33

7.4 – 7.8

Clay loam

P- poorly drained

Very high suitability

0 - 2%

> 80

22 - 30

5.6 – 7.3

clay

I-imperfectly drained