Grog Ppa 2 DEFORESTATION

Question 1

Causes for deforestation

Answer 1

Cattle ranching, small-scale agriculture, large-scale agriculture, logging, transport infrastructure development, hydroelectric power dam construction, mining and oil&gas development.

Question 2

Economic effects of deforestation

Answer 2

Good: revenue, reduce foreign debt, provide employment. Bad: deplete forest faster than replenishment, non-renewable resources depleted, depletion lead to closure of industries, no future revenue.

Question 3

Social effects of deforestation

Answer 3

Good: alleviate starvation and hunger, intensive cultivation to support higher population density. Bad: lifestyles of tribal ppl threatened, undermine their land rights, loss of traditional culture and knowledge of forest, disappearance of tribal ppl.

Question 4

Physical/Environmental effects of deforestation

Answer 4

Good: NOTHING. Bad: water cycle and resources, soil fertility, flora and fauna, climate change (regional and global)

Question 5

Effect on water cycle and resources

Answer 5

No tree roots to stop landslides, loss of lives, sedimentation and flooding increased, water pollution.

Question 6

Effect on soil fertility

Answer 6

Declined soil fertility as nutrient cycle is broken, loss of trees so no decomposition, soil subjected to leaching, loss of arable land.

Question 7

Effect on flora and fauna

Answer 7

Destruction and extinction to flora and fauna, loss of valuable resources for future generations e.g. plants with medicinal value

Question 8

Effects on climate change (regional and global)

Answer 8

Modifications of the atmosphere bc of less transpiration causing less rainfall, global warming and climate change, haze due to burning causing health problems.