geography aos2 Flashcards
what percentage of the world is covered by forest
33%
where are the majority of the worlds forests are grown
tropical mainly or temperate areas
what are the 3 characteristics of a forest
primary forests, temporary forests or plantations
what is the difference between primary and secondary forests
primary forest is an intact, pristine condition with full biodiversity, whereas secondary forests have been disrupted by humans and consists of native species
lists reasons for deforestations
- Settlements
- Farms
- Damns
- Mines
- Logging for a source of wood
why have is their deforestation
removed physically or through fire, provide land for increasing population, food, source of trade,
what are the 4 types of forest
tropical, boreal, temperate and sub tropical
what are economic impacts of deforestation
- Damage to eco system costs 1-3 trillion globally
- Lowers cost of land, timber and labour
- Reduces jobs as it makes them redundant
what are environmental impacts of deforestation
- Loss of trees and vegetation causes climate change, reduction in air
- Soil erosion
- Loss of biodiversity
- An increase in secondary forest and decrease in primary forests
what are social effect of deforestation
- Affect indigenous people of that land
- Loss of jobs due to lack of land to work on
- Effects social activities like hunting and fishing