A Study of Erodibility of Aramoko-Ekiti Soil, Southwestern Nigeria
- Author Adeyemi E. Adetoro
- Co-Author Michael O. Dada
- DOI
- Country : Nigeria
- Subject : Civil Engineering
Keywords : Erodibility, Grain size, Gully, Landform, Rill
Abstract
Knowledge of soil erodibility is important for investigation and prediction of soil movement, which will help in lives and properties safety. This piece of study looked into erodibility of Aramoko-Ekiti soil. Soil samples were taken from four locations in the study area to laboratory for grain size distribution tests. Landforms (slopes) for those locations were also determined. Results showed that all the soil samples had very high percentages of clay (or silt) and sand, which varied between 38.18 and 46.70%, 51.90 and 59.42% respectively. And very low percentages of gravel, which varied between 1.30 and 2.40%. They have significant constituent materials of mainly silty or clayey sandy soils with little gravel. These implied that the soils are sediments and prone to erodibility. Slope steepness in the study area ranges from 0.05 to 0.104. This portrayed that the slopes were steep, thus favoured high soil erodibility.
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