Environmental Change
What is the term for the process where fertile land becomes increasingly dry, degraded and less productive?
Desertification
What is overgrazing?
Livestock graze vegetation faster than it can regrow
What can happen to soil when it is eroded?
It can lose nutrients and fertility.
In which region of Africa is the Great Green Wall initiative located?
The Sahel
Is the loss of biodiversity an environmental, social or economic consequence of desertification?
Environmental
Name 1 biophysical process
Name two human activities that can contribute to desertification.
Identify one environmental OR one economic consequence of desertification.
Environmental: loss of vegetation or biodiversity.
Economic: reduced agricultural productivity or loss of income.
What environmental problem is the Great Green Wall designed to help address?
Desertification
Is a reduction in farmers' income an environmental, social or economic consequence?
Economic
What is the process of soil being carried away by wind or water called?
Erosion
What is a drought?
A prolonged period of unusually low rainfall.
How can desertification affect the people who rely on farming?
It can reduce crop yields and livestock productivity, making it harder for people to earn an income and access food.
How can planting and restoring vegetation help reduce desertification?
Vegetation roots stabilise soil, plant cover reduces exposure to wind and rain, and restored vegetation can improve habitat and soil health.
What is one way farmers can reduce the effects of overgrazing?
Manage the number of animals grazing in an area or allow vegetation time to regrow.
What do we call a long period with very little rainfall?
Drought
How can cutting down trees contribute to desertification?
It removes vegetation that protects the soil from erosion
What can happen to plants when an area experiences desertification?
Vegetation can decrease or disappear.
Which initiative focuses on managing Australia's desert environments?
The 10 Deserts Project
What does a line graph show you in climate graph
Temperature
What is biodiversity?
The variety of living things in an environment.
What is one way people can help protect soil from erosion?
Maintain or restore vegetation.
True or false: Desertification can happen even if an area is not a desert.
True! It can occur in dry environments where land becomes degraded.
Why is it important to protect vegetation in desert environments?
Vegetation provides habitats and helps protect soil from erosion.
What does a bar graph show you in a cliame graph