Lesson 20 Land Degradation COMA

1. LAND DEGRADATION
CONTINUED
Topic One

2. LEARNING GOALS
Learning Goal
◻ To investigate a range of activities that have an impact on
landscapes
◻ Identify the FORMS and CAUSES of land degradation
Success Criteria
◻ I can name and define two-three activities that have an impact
on landscapes
◻ I can describe HOW those activities cause the land to change

3. FORMS of Land Degradation
• Erosion
• Salinity
• Desertification
Key Terms for books
CAUSES of Land Degradation
• Overgrazing
• Deforestation
• Crop Growing
• Collection of Firewood
• Industrialisation

4. DISCUSS: The extent of global land degradation
Explore
and
Discuss
the image.
Which
countries
are the
worst
affected?

5. Read page 75 of the textbook as a class and describe the 5 causes of land
degradation
Common CAUSES of land degradation /
Key Terms
HUMAN ACTIVITIES EFFECT ON THE ENVIRONMENT
Overgrazing grass is not able to regrow and the land becomes hardened from
the hooves of animals
…
…
…

6. Write a definition for each of these terms:
• Erosion
• Desertification
• Salinity
EXT: Define “Arable”
Common FORMS of land degradation /
Key Terms

7. Soil Erosion
Common forms of Land Degradation
Salinity
What do you notice about each image? What do you think has happened?

8. Erosion and desertification in
Central Asia
Types of Land Degradation

9. As a class look at page 76 of the textbook.
• You will be creating your own mind map on inspiration maps
(or in your book)
• Your mind map will show the causes of land degradation
Activity

10. • The mind map must show the 5 main causes of land
degradation. One branch for each. Each cause must include:
o A simple definition/description of the cause
o A picture or an example of where this is happening
with a reference to the location
Mind Map