Rainforests and Deforestation (Junior Cert Wood Technology): Flashcards

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Rainforests and Deforestation
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Main role of rainforests for Earth's health

Absorb CO2 and produce oxygen

Typical locations of rainforests

Near equator: S. America, Africa, SE Asia

Definition of rainforest

Thick forest in wet areas, rich in life, has many layers

Definition of deforestation

Cutting down trees permanently for logging/farming

Definition of afforestation

Planting trees in empty areas to make new forests

Definition of reforestation

Planting trees where forests were before

Definition of sustainable logging

Cutting trees carefully to meet needs & keep forests healthy

Four layers of rainforest

Emergent, canopy, understorey, forest floor

How rainforests control climate

Take in CO2 and give out oxygen

Three main causes of deforestation

Logging, expanding farms, new cities

Ecological impacts of deforestation

Less biodiversity, soil loss, changes in water patterns

Effect of tree cover loss on soil

Soil becomes unstable

Sustainable logging techniques

Careful logging and growing different trees

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