Effect of rainfall intensity and energy on gully development in northeastern Enugu State, Nigeria

Type Journal Article - Nigerian Journal of Technology
Title Effect of rainfall intensity and energy on gully development in northeastern Enugu State, Nigeria
Author(s)
Volume 26
Issue 1
Publication (Day/Month/Year) 2012
Page numbers 91-96
URL http://www.ajol.info/index.php/njt/article/viewFile/123390/112932
Abstract
An in-depth study of rainfall parameters and gully developments in four
experimental sites in northeastern, Enugu state of Nigeria has been carried out.
The study involved an environmental report of the study area, use of four
experimental sites where data on rainfall parameters were obtained. Thereafter
the data were analysed. Weekly computed values of rainfall intensities and kinetic
energy were used to assess the weekly corresponding incremental rates of gully
developments in the sites. Also the galling impact of soil erosion on the study
locations which were observed to have biophysical and socio-economic
ramifications were looked at. Farming is the dominant land use of the area
intensifies in two orders of magnitude annually. Also, the high rainfall belts of the
study area, frail soil type, undulating topography among others factors make it
susceptible to soil erosion. The findings show a high correlation between rainfall
intensities against gully growth as well as between rainfall kinetic energy and
gully developments. Gully erosion management measures such as the planting of
suckers, wattles, live stick fencing, post management of stabilized gullies and soil
erosion awareness were proffered to stem the hazard.

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