Determination of Erosivity of Enugu State

Determination of Erosivity of Enugu State



G.I. Okolotu, S.I. Oluka, P.C. Eze.



To combat erosion, there is need for adequate
examination of soils and factors of erosion. The study of Erosivity is
vital for effective soil conservational planning and agricultural
activities in Enugu State of Nigeria of West Africa, and other parts of
the world. In this study, rainfall amount and duration were obtained and
used in the determination of rainfall intensities in Enugu regions.
These rainfall records were used in calculating the three erosivity
indices namely; the maximum 30-minute intensity, kinetic energy greater
than 25, and peak storm intensity. With the aid of the above data,
erosivity of Enugu was uncovered. This was achieved by taking the
average of the calculated years. This Erosivity value can be used in
modeling a general soil loss equation for all soil types in Enugu. This
general soil loss equation can be used to predict erosion in Enugu
region. Also, from the force impact of rain capable of causing erosion,
erosive rain were separated from non erosive rain using the method
based upon the concept that there is a threshold value of intensity at
which rain starts to be erosive. With this insight, one can also predict
future erosive rain and non erosive rain using the weather forecast
data. With the knowledge of these predictions, erosion prevention
technique may be applied in areas of possible future occurrence rather
than remediating soil after erosion hazard. 



10.22161/ijeab/2.1.11



http://ijeab.com/upload_document/issue_files/11%20IJEAB-DEC-2016-39Determination%20of%20Erosivity%20of%20Enugu%20State.pdf



ijeab.com/submit-paper/

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