TROPICAL RAINFORESTS Flashcards
WHAT ARE PLANT ADAPTATIONS
1) all trees have buttress roots
2) Plants have thick waxy leaves with pointed tips- water runs off- no water for fungi
3) smooth thin bark (water runs off)
4) climbing trees to get to the light LINEAS
5) distinct layers of different adaptation
WHAT ADAPTATIONS DO ANIMALS HAVE
1) Alot of time in canopy- strong limbs HOWLER MONKEYS
2) flaps of skin to glide FLYING SQUIRREL
3) Camouflage to hide from predators GECKOS
4) Nocturnal- night is cooler save energy SLOTHS
5) Swims JAGUARS
6) birds have pointy wings to manoeuvre between trees HARPY EAGLE
WHY ARE TREES CHOPPED DOWN
POPULATION PRESSURE- Land for settlements
MINERAL EXTRACTION- eg. Gold mined for money
ENERGY DEVELOPMENT-dams for hydroelectric power
COMMERCIAL LOGGING- felled to make money
COMMERCIAL FARMING- cattle and palm oil for making fun
SUBSTIENCE FARMING- grow food for self
WHAT ARE THE ENVIRONMENTAL IMPACTS OF DEFORESTATION
1) Soil erosion causes landslides,flooding
2) More water reaches soil- reduces soil nutrients
3) Trees remove CO2 from atmosphere
4) Burning vegetation produce CO2
5) causes 15% of CO2 emissions
WHAT ARE ECONOMIC IMPACTS OF DEFORESTATION
1) Creates jobs
2) Alot of money is made
3) Destroy resources - reduce tourism
4) Loss of animals and plants
5) Livihoods of people lost
RATE OF DEFORESTATION
1) Now very high 130,000 km² per year
2) BUT Globally slowing down
3) BRAZIL + INDONESIA HIGHEST
WHAT IS THE CASE STUDY
AMAZON RAINFOREST
DESCRIBE AMAZON RAINFOREST
1) Largest rainforest on earth - 8 million km²
2) Since 1978 over 750,000km² has been destroyed by deforestation
3) 70% by commercial ranching
4) Population growth putting pressure on Amazon
WHAT ARE THE ENVIRONMENTAL IMPACTS OF THE AMAZON RAINFOREST
1) Stores 100 billion tonnes of carbon - released Global warming
2) Losing 55 million tons of soil - soil erosion - soy farming
ECONOMIC IMPACTS OF AMAZON RAINFOREST
1) Wealth to poorer countries
2) Amit of money from farming eg. 2008 Brazil $6.9 billion from cattle
3) Mining industry creates jobs- Peru employs 3100
4) Local Brazilian-rubber rappers lost Livihoods
WHAT ARE THE 7 METHODS OF SUSTAINABLE MANAGED
1) SELECTIVE LOGGING
2) REPLANTING
3) ECOTOURISM
4) INTERNATIONAL HARDWOOD AGREEMENTS
5) EDUCATION
6) REDUCING DEBT
7) CONSERVATION
WHATS SELECTIVE LOGGING
Only some trees are felled (old ones)
Less damaging because overall forest structure in kept (still canopy)
Will be able to regenerate in the future
WHATS REPLANTIING
New trees planted to replace cut down trees
Trees in the future
Same type in the future (variety)
WHATS ECOTOURISM
Tourism minimised damage
Smaller number of visitors every time
ENVIRONMENTAL impacts limited (waste + litter)
Income for local people
Local people at tourism less need for farming
COSTA RICA 25%
WHATS INTERNATIONAL HARDWOOD AGREEMENTS
HARDWOOD- furniture (becoming rarer)
International agreements reduce illegal
logging
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