Fragile Environments Flashcards

1
Q

Fragile Environment

A

An environment that is vulnerable to change and struggles to recover from these changes

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1
Q

Sustainability

A

The ability to be maintained over time without depleting natural resources

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2
Q

Human causes of desertification

A

Overgrazing
Over-cultivation
Deforestation
Population growth

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3
Q

Natural causes of desertification

A

Soil erosion
Less predictable weather (rain)
Drought
Wildfires

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4
Q

Causes of deforestation

A

Agriculture
Mining
Human settlements
Logging for timber
Road building

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5
Q

Sand Dams

A

Kenya and other parts of Africa
Reinforced concrete walls that capture water-filled sand
Low-cost and low-maintenance
Help provide clean water to drought stricken areas
Raises water table

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6
Q

Desertification Solutions

A

Education
Permaculture (self-sufficient and sustainable agriculture)
Terracing
Afforestation (planting trees)

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7
Q

Desertification Impacts

A

Climate refugees
Reduced agricultural output
Malnutrition
Famine

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8
Q

Desertification

A

Term used to describe how once productive/fertile land changes into a desert-like landscape

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9
Q

Deforestation Impacts

A

Nutrient leaching
CO2 release
Land degradation
Biodiversity loss
Habitat loss
Indigenous land lost
Flooding risk increase

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10
Q

Deforestation Solutions

A

Restricted and controlled logging
Biosphere reserve
Developing alternative energy supplies
Agro-forestry (combining trees and crops)
Less destructive mining

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