Unit 1B - Tropical Rainforests - Deforestation and impacts Flashcards Preview

Geography - Unit 1B - The Living World > Unit 1B - Tropical Rainforests - Deforestation and impacts > Flashcards

Flashcards in Unit 1B - Tropical Rainforests - Deforestation and impacts Deck (13)
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1

Deforestation definition?

Process by which natural forests cleared through logging and burning. Used for wood or area

2

6 reasons for deforestation?

Population pressure, mineral extraction, energy development, commercial logging, commercial and subsistence farming, road networks

3

What is slash and burn?

Clearing and burning forest

4

Logging definition?

Cutting down trees for sale as timber or pulp

5

Minerals extracted from mines?

Iron, manganese, nickel, tin, bauxite, beryllium, copper, lead, tungsten, zinc and gold

6

What is lost when forest is cleared?

Biodiversity

7

What releases CO2 contributing to climate change and absorbs CO2?

Released by burning trees and absorbed by trees

8

What are soils like after deforestation?

Not fertile. Quickly exhausted, susceptible to soil erosion

9

1 social -ve of deforestation?

Affects indigenous people

10

4 economic +ve of deforestation?

- Improved transportation means easier access
- logging, farming and mining creates jobs
- lots of money from selling resources
- tax on resources can be used to improve education, health, etc.

11

3 economic -ve of deforestation?

- profits from large-scale farming and selling resources often go to large companies set up in TRF.
- small-scale farmers lose out
- resources later use up or destroyed that countries depend on

12

1 environmental +ve of deforestation?

Vital source of medicines

13

6 environmental -ve of deforestation

- loss of biodiversity and habitats
- losing genetic resource and potential medicines
- even when grown back, wouldn't be same as before
- some trees take many years to grow bak
- nutrient cycle destroyed as no interception means soil erosion
- More CO2 in atmosphere, add on to greenhouse effect, as less trees to absorb and burning trees adds CO2