Abstract
Soil erosion is recognized as a global threat against the sustainability of the natural ecosystem and the environment because of its severe effects in agricultural productivity, damage to infrastructure and pollution of water bodies. This study aims to compare the splash erosion on open field using Morgan and splash board method. The fabrication of the splash cups and splash board was carried based on the principles of the already existing devices in literature and in the department of Agricultural and Bio-Environmental Engineering Technology Auchi Polytechnic Auchi. The rainstorm depth ranged from 7 to 81 mm and the computed KE obtained ranged from 294 to 3233.4 J/m 2 . A total of 15 rainfall events were used in the season. For site A the amount of soil splashed per rainfall event ranged from 0.02 g/m 2 to 4.77 g/m 2 and zero (no splash) to 2.39 g/m 2 for Morgan cup and Splash board device respectively. Studies of splash erosion on cultivated land should be made to determine the effect of cultivation on the soil in the area. Keywords: Morgan’s Splash cup, splash board, kinetic energy, soil erosion, splash erosion, rainstorm DOI: 10.7176/JEES/11-4-06 Publication date: April 30 th 2021
Highlights
Soil erosion is recognized as a global threat against the sustainability of the natural ecosystem and the environment because of its severe effects in agricultural productivity, damage to infrastructure and pollution of water bodies
A total of 15 rainfall events were used in the season
In site B, soil splashed ranged from 0.01 g/m2 to 1.99 g/m2 and zero to 1.48 g/m2 for Morgan cup and splash board respectively; While for site C, soil splashed ranged from 0.34 g/m2 to 6.50 g/m2 and 0.01 g/m2 to 4.43 g/m2 for Morgan cup and splash board devices respectively recording the highest splash occurrence
Summary
Soil erosion is recognized as a global threat against the sustainability of the natural ecosystem and the environment because of its severe effects in agricultural productivity, damage to infrastructure and pollution of water bodies. Adverse impacts due to human activities resulting in accelerated soil erosion process have been well documented (Morgan, 1995). Land degradation and related processes such as gullying, flooding and sedimentation, are global phenomena (Salama et al, 2008). They have been recognised as a major threat to the global environment: it impacts directly human health and livelihoods (Vogt et al, 2011). The economic consequences of these processes are more severe in developing countries, which lack resources for prevention and mitigation (Tamene and Vlek, 2008)
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