Soil (Erosion, Pollution, Conservation)

Soil (Erosion, Pollution, Conservation)

Agenda

• Erosion:

• Explanation, Causes

• Pollution:

• Explanation, Causes

• Conservation:

• Explanation,

• Prevention methods

Erosion

Explanation

Erosion

Gradual removal of the topsoil by the process of flowing water, wind, waves and snow is called Soil erosion.

Erosion

Causes

Erosion

• Heavy Rains and floods make the soil particles loose and lead to soil erosion

• Deforestation loosens the particles in soil and leads to easy erosion by wind and water

• Poor farming methods adopted by farmers also add up to soil erosion

• Overgrazing by animals, construction of roads and houses have led to increase in the pace of soil erosion

Pollution

Explanation

Pollution

Contamination of soil by presence of man-made chemicals or other non-desirable substances is called Soil pollution

Pollution

Causes

Pollution

• Excessive use of pesticide, insecticide, and fertilizers are the major cause of soil pollution

• Excretory products of living organisms and untreated sewage also pollute the soil

• Plastic waste does not decay and pollutes the soil

• Salination degrades the quality of soil

Conservation

Explanation

Conservation

Protection of soil against Erosion and degradation

Conservation

Prevention methods

Conservation

• Contour ploughing

• Terrace farming

• Perimeter runoff control

• Windbreaks

• Cover crops/crop rotation

Open Ended

What is Soil erosion?

Open Ended

What is Soil pollution?

Open Ended

What is Soil conservation?

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