Desertification Flashcards

(12 cards)

1
Q

What is desertification

A

The process by which fertile land becomes increasingly arid and unproductive

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2
Q

What are the main causes of desertification

A

Climate change

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3
Q

How does climate change cause desertification

A

Reduces rainfall

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4
Q

How does deforestation cause desertification

A

Removes trees that hold soil and retain moisture

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5
Q

How does overgrazing cause desertification

A

Livestock eat vegetation faster than it can regrow

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6
Q

How does over-cultivation cause desertification

A

Repeated planting without allowing soil to recover reduces nutrients and fertility

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7
Q

How does unsustainable irrigation cause desertification

A

Leads to soil salinisation which damages fertility and reduces crop growth

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8
Q

What are the environmental impacts of desertification

A

Loss of soil fertility

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9
Q

What are the social impacts of desertification

A

Food insecurity

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10
Q

What are the economic impacts of desertification

A

Reduced agricultural output

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11
Q

How can desertification be managed

A

Sustainable farming

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12
Q

Why is sustainable land management important

A

To maintain soil fertility

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