Table 5.

Soil type and its characteristics of the Vamanapuram river basin.

Index	Description	Type
1	• Very deep, well drained, gravelly clay soils on gently sloping coastal laterites, with moderate erosion.	• Clayey – skeletal, kaolinitic, typic tropaquepts.
	• Allied with very deep, well drained, gravelly clay soils with moderate surface gravelliness.	• Clayey – skeletal, kaolinitic, typic kanhaplustults.
2	• Very deep, well drained, gravelly clay soils with moderate surface gravelliness on moderately steeply sloping laterite mounds, with moderate erosion.	• Clayey – skeletal, kaolinitic, ustoxic humitropepts
	• Allied with deep, well drained, gravelly clay soils on gentle slopes.	• Clayey - skeletal, Kalolinitic, ustic haplohumults
3	• Very deep, well drained, gravelly clay soils with moderate surface gravelliness on gently sloping midland laterites with valleys of southern Kerala, with moderate erosion;	• Clayey – skeletal, kaolinitic, ustic kanhaplohumults
	• Allied with very deep well drained, clayey soils.	• Clayey, kaolinitic, typic kandiustults
4	• Deep, well drained, loamy soils on gently sloping low hills with isolated hillocks, with moderate erosion;	• Fine – loamy, mixed, ustic humitropepts
	• Allied with deep, well drained, loamy soils with coherent material at 100 to 150 cm on moderate slopes, severely eroded	• Fine - loamy, mixed, ustic haplohumults.
5	• Deep, well drained, gravelly clay soils with coherent material at 100 to 150 cm on moderately sloping isolated hillocks, with severe erosion;	• Clayey – skeletal, kaolinitic, ustoxic humitropepts
	• Allied with moderately shallow, well drained, gravelly loam soils with 50 to 75 cm on very gentle slopes moderately eroded.	• Fine – loamy, mixed ustoxic humitropepts
6	• Very deep, well drained, clayey soils on moderately steeply sloping high hills with thin vegetation, with moderate erosion;	• Clayey, mixed, ustic palehumults
	• Allied with rock outcrops.	• Rock land