International Journal of Environmental Planning and Management
Articles Information
International Journal of Environmental Planning and Management, Vol.5, No.1, Mar. 2019, Pub. Date: May 28, 2019
Assessing the Impact of Soil Erosion on Residential Areas of Efon-Alaaye Ekiti, Ekiti-State, Nigeria
Pages: 23-31 Views: 1412 Downloads: 321
Authors
[01] Olusa Adekemi Opeyemi, Department of Urban and Regional Planning, Federal University of Technology, Akure, Nigeria.
[02] Faturoti Helen Abidemi, Department of Urban and Regional Planning, Federal University of Technology, Akure, Nigeria.
[03] Otokiti Kolade Victor, Department of Urban and Regional Planning, Federal University of Technology, Akure, Nigeria.
Abstract
Soil erosion is a persistent process that continues relatively unnoticed, or at an alarming rate causing serious threats to soil. About 84% of the global land loss has been attributed to erosion. Accordingly, erosion is one of the most significant environmental problems worldwide. In this paper, Revised Universal Soil Loss Equation (RUSLE) and Geographical Information Systems (GIS) were used to assess the impact of soil erosion on residential areas of Efon-Alaayee Ekiti, Ekiti State, Nigeria. Soil erodability, slope, land cover and support practice factors were the variables used to investigate the impact of soil erosion in the study area. As an output, a soil loss map was developed and the total land area at risk of being lost to erosion was estimated from the analysis. The soil loss map was calculated to be between 0 to > 756.60 tons per hectare (31.9 sq.km) in a year. The soil map was classified into four categories based on erosion risk classes, namely: slight, moderate, high and very high. The result indicates that 21.8 sq.km area is under slight class, 6.5 sq.km area is under moderate class, 2.7 sq.km is under high class while, 0.54km sq.km area is under very high class.
Keywords
Land, Land Use, Residential Land Use, Erosion, Soil Erosion, Rusle Model
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