Evaluation of Soil Erodibility Potential of the Geologic Formations in Awka Capital Territory South Eastern Nigeria Using the Universal Loss Equation Parameters

Onuchukwu Ejikeme Elozona, Njoku Adaora Olivia, Anozie Humphrey Chukwuma, Ahaneku Chibuzor Valeria, Ahaneku Chibuzor Valeria, Anumaka Collins, Odinye Arinze and Madu Francis
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Onuchukwu Ejikeme Elozona: Department of Geology, Faculty of Physical Sciences, Nnamdi Azikiwe University, Awka
Njoku Adaora Olivia: Department of Geology, Faculty of Physical Sciences, Nnamdi Azikiwe University, Awka
Anozie Humphrey Chukwuma: Department of Geology, Faculty of Physical Sciences, Nnamdi Azikiwe University, Awka
Ahaneku Chibuzor Valeria: Department of Geology, Faculty of Physical Sciences, Nnamdi Azikiwe University, Awka
Ahaneku Chibuzor Valeria: Department of Geology, Faculty of Physical Sciences, Nnamdi Azikiwe University, Awka
Anumaka Collins: Department of Geology, Faculty of Physical Sciences, Nnamdi Azikiwe University, Awka
Odinye Arinze: Department of Geology, Faculty of Physical Sciences, Nnamdi Azikiwe University, Awka
Madu Francis: Department of Geology, Faculty of Physical Sciences, Nnamdi Azikiwe University, Awka

International Journal of Research and Innovation in Applied Science, 2024, vol. 9, issue 7, 28-37

Abstract: A survey was carried out on soil erodibility in the territory of the capital city of Awka in the southeast of Nigeria. The study aims to assess and document the soil erosion potential in the face of growing population and environmental challenges. The erodibility potential of the study area was assessed using the Universal Soil Loss Equation (USLE) and United States Department of Agriculture (USDA) tools. A total of twenty-five (25) sample locations points was used for this study and the Arc-GIS tool was also used to assist in the field for this estimation using the erodibility indicators of the World Bank. The USLE value calculated was 672, indicating high erodibility erodibility, while the USDA forecast was Category IV. Using both the USLE and the USDA tools’ threshold, the area is concluded to be highly erodible and having high erosion risk. Both models indicated that the samples reached a highly erodible threshold. High soil erodibility index is therefore observed as a critical problem in the study area. The study recommends integrated catchment management planning which will involve a wholistic storm water master planning, vegetation, controlled land use etc to conserve soil in the study area.

Date: 2024
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