Ecosystems Flashcards
(19 cards)
What are the 4 layers of the rainforest?
Emergents
Canopy
Under canopy
Shrub level
What are the solutions to deforestation?
- selective management
- eco tourism
- national parks
- rainforest corridors
What are the impacts of deforestation?
Soil erosion
Climate change
Why do we deforest?
Mining
Dams
Farming
Urbanisation
What are the opportunities for development in the desert?
Mining
Solar panels
Tourism
Farming
What are the positives of mining in the desert?
Provides minerals such as gypsum and creates job opportunities
What are the negatives of mining in the desert?
Often have to work at night due to temperatures
It destroys habitats
Minerals will run out
What are the positive of farming in the desert?
Makes good use of space
Gandhi canal brings water to the area to increase crop yield
Provides job opportunities
Allows for excess food to be sold
What are the negatives of farming in the desert?
Lack of water prevents crops from growing
Destructive plate boundary key words
Subduction
Mantle
Magma
More dense oceanic plate
Earthquakes key words
Epicentre
Focus
Seismic waves
Why do people live next to volcanoes and earthquakes?
Fertile soil for farming
What are the causes of deforestation?
- subsistence and commercial farming
- settlement
- population growth
- logging
- road building
- mineral extraction
- energy development
What are the impacts of deforestation?
- economic development
- soil erosion
- contribution to climate change
What are the development opportunities in hot desert environments?
- mineral extraction
- energy
- farming
- tourism
What are the challenges of developing hot desert environments?
- extreme temperatures
- water supply
- inaccessibility
What are the causes of deforestation?
- climate change
- population growth
- removal of fuel wood
- overgrazing
- over cultivation
- soil erosion
What are the strategies used to reduce the risk of deforestation?
- water and soil management
- tree planting
- use of appropriate technology
What are the strategies used to manage the rainforest sustainably?
- selective logging and replanting
- conservation and education
- ecotourism and international agreements about the use of tropical hardwoods
- debt reduction
