What is desertification
The process by which fertile land becomes increasingly arid and unproductive
What are the main causes of desertification
Climate change
How does climate change cause desertification
Reduces rainfall
How does deforestation cause desertification
Removes trees that hold soil and retain moisture
How does overgrazing cause desertification
Livestock eat vegetation faster than it can regrow
How does over-cultivation cause desertification
Repeated planting without allowing soil to recover reduces nutrients and fertility
How does unsustainable irrigation cause desertification
Leads to soil salinisation which damages fertility and reduces crop growth
What are the environmental impacts of desertification
Loss of soil fertility
What are the social impacts of desertification
Food insecurity
What are the economic impacts of desertification
Reduced agricultural output
How can desertification be managed
Sustainable farming
Why is sustainable land management important
To maintain soil fertility