1. Overgrazing, deforestation, overcultivation, desertification.
Soil Lesson 3 Outline the processes and consequences of soil degradation.
Key themes:
Overgrazing, deforestation, overcultivation, desertification.
Assessment Statement: 3.4.3

2. Define soil degradation…
Soil degradation is the decline in soil quality and quantity caused by its improper use; this is usually for agricultural, industrial or urban purposes.

3. Read through the GeoFactsheet on Soil Degradation.
1. The soil loss equation is A=RKLSCP. Describe what each of these factors is. 2. Explain the following CAUSES of soil degradation (say WHY they happen): Overgrazing, Over cultivation (no fallow / set-aside), Deforestation, Climate change, Desertification. 3. In your own words explain what you think is the greatest contributor to global soil degradation.

4. Describe the pattern of global soil health…