soil erosion

SOIL EROSION

• Soil erosion is one form of soil degradation• Soil erosion is a naturally occurring process

that affect all land forms• It may be slow process that continues

relatively unnoticed or can occurring at an alarming rate causing serious loss of topsoil

TYPES OF EROSION

SHEET EROSION

GULLY EROSION

CHANNEL EROSION

RILL EROSION

SHEET EROSION

The removal of a uniform layer of soil from the surface by runoff

GULLY EROSION

The accumulation of water in narrow cuts which removes the soil to considerable deapth.These cuts can be several feet deep.

CHANNEL EROSION

The scouring of stream banks by increased water flows

DRILL EROSION

The process where numerous small cuts are formed

CAUSESNatural processWindWater flowing down

Human activitiesOver croppingDeforestationOver stocking overgraing

PROBLEMS

Loss of valuable topsoil

Damage to fields

Dicrease in plan productivity

desertification

REMEDIESAvoid overgrazing

Conserve wetlands

Terracing can also be affective

Large steps cut in to a hillside

Encourage water infiltrationdicrease in plant productivity

THANK YOU