CHAPTER ONE

1.0     INTRODUCTION

1.1     BACKGROUND OF THE STUDY

The development of soil erosion began when man settled down and started turning pasture land into farmland. The intensive exploitation of the land disturbed the natural soil vegetative cover and exposed its, surface to the effect of erosive agents and to introduce such forms of agriculture that did not destroy the land the devastation of land by erosion often led to the down fall of civilization e.g in Mesopotamia Syria, China and else where.

According to Robert. M. (1984), Erosion is manifested by the determination of soil surface effected by exogenous forces, especially water. Ice wind and, man as the significant anthropogenic factor. The disturbance of soil surface is accompanied by the removal of the detached soil particles by the force of kinetic energy of some of the erosion agents, namely water and wind and the deposition of this matter with a decrease in this energy. Erosion is caused by surface num off and result complex natural process. Water erosion is caused by precipitation. Areas with a low precipitation usually have a small surface num off because precipitation water infiltrates into the soil is consumed by vegetation erosion which may also be broadly cause by a natural factor organ.

It can also be carried by improper channeling neglect of natural sewage systems and obstruction of naturally sewage by buildings. Form land and other unplanned structure causes a great deal of damage.

Although the nature of soil within the area under consideration is mostly sandy with a very low water storage capabilities. Practical observation orchestrated form visit to those site prone to erosion have shown that their may be possibility of erosion if the nun off water is not properly channel e.g the nature of the soil. In sandy soil they can form a very good soil material but danger exist if the water table is near or surface nun off is not adequately channeled. The sandy easily eroded a way from it position their by causing or may lead to fully erosion.

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