Evaluation of the causes of erosion and solution: Case study Umuokoro Iowa, Ihitte/Uboma local government area, Imo State

Abstract

Erosion is a condition in which the surface of the earth declines gradually due to wearing away by the action of water, wind and human activities. This research was carried out to determine the types of erosion occurring in this area and provide proper erosion management techniques that will help to control the erosions occurring in this area. Erosion control techniques are used to prevent and reduce soil erosion. Visual examination, interviews from residents and measurement of measurement of the erosion to know the cause, nature and type of erosion at the sites were carried out. Results of visual examination and interviews revealed that the erosion was caused by abandoned road construction and poor land management practices of the residents. Measurements from site A, D and G at the month of May which were 0.28, 0.29 and 0.29 m in depth respectively showed that they have already degenerated from splash to rill and is gradually forming gully, while site B and C at the month of May which were 1.53 and 2.34 m in depth respectively were still active gullies. Site F and G have already degenerated from rill to gully and will be worse if nothing is done on time. Implementation of the solutions recommended like regarding and tarring the roads, planting vegetative covers and proper sensitization of the villagers is necessary to improve and maintain the environment.