unit 3 conserving our tropical rainforests unit 3 conserving our tropical rainforests
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Unit 3Unit 3
Conserving our tropical rainforestsConserving our tropical rainforestsConserving our tropical rainforestsConserving our tropical rainforests
Unit 3 Conserving our tropical rainforests
Many countries in tropical rainforest regions are developing countries.
There is a great demand for land for farming and settlement because of increasing population.
They have to choose between opening up forest resources to meet immediate needs and preserving them for their future generations.
How should we use tropical rainforests?How should we use tropical rainforests?
Unit 3 Conserving our tropical rainforests
National parksNational parks Some countries have put asid
e large tracts of land as national parks or nature reserves to conserve the forests.
The clearance of forest and damaging activities have been stopped in the area.
The total area under such protection is very small.
Unit 3 Conserving our tropical rainforests
How should we use tropical rainforests?How should we use tropical rainforests?
Ban on commercial Ban on commercial logginglogging
We need to control the trade of tropical hardwoods and the export of tropical timber.
Thailand banned all commercial logging in 1989 and Laos in 1991.
How should we use tropical rainforests? How should we use tropical rainforests?
Unit 3 Conserving our tropical rainforests
Sustainable developmentSustainable developmentHow should we use tropical rainforests?How should we use tropical rainforests?
Tropical rainforests are opened up in such a way to Tropical rainforests are opened up in such a way to ensure the resources are not depleted in future.ensure the resources are not depleted in future.
A sustainable development of tropical rainforests may be a solution to the conflict of land use.
Sustainable development allows the setting up of forest industries which produce non-timber products.
These activities provide jobs to the native people and at the same time protect their lifestyle and culture. The exported non-timber products also earn income for the country.
Unit 3 Conserving our tropical rainforests
Sustainable developmentSustainable development How should we use tropical rainforests? How should we use tropical rainforests?
Unit 3 Conserving our tropical rainforests
Activities which are good to the environment include the growing of crops, the tapping of rubber, the collection of medicinal plants and the rearing of freshwater fish.
Farming on small plots of land is encouraged so that the native people can practise their traditional farming method of shifting cultivation.
Why shifting cultivation does not cause a great deal of damage to tropical rainforests?Why shifting cultivation does not cause a great deal of damage to tropical rainforests?
Farm becomes rainforest again A small piece of land cleared by burning
Cleared land turned into a farm for growing cropsFarm abandoned when land becomes infertile
Unit 3 Conserving our tropical rainforests
Selective loggingSelective logging
Selective logging removes only commercially valuable trees while leaving the rest of the forest unharmed.
How should we use tropical rainforests?How should we use tropical rainforests?
Unit 3 Conserving our tropical rainforests
Replacing firewood by Replacing firewood by other fuelsother fuels
Cleaner, cheaper and more efficient fuels need to be developed to replace firewood as fuel which would stand a better chance of survival when the people no longer rely on them for firewood.
How should we use tropical rainforests?How should we use tropical rainforests?
Unit 3 Conserving our tropical rainforests
ReforestationReforestation
Reforestation by the replanting of trees in cleared land is needed.
Reforestation prevents soil erosion, stops the silting of rivers and checks flooding.
How should we use tropical rainforests?How should we use tropical rainforests?
Unit 3 Conserving our tropical rainforests
What can we do to help save tropical rainforests?
What can we do to help save tropical rainforests? Learn more about rainforestsLearn more about rainforests
Our research on rainforests would increase the under- standing of these forests, which would help in drawing up a better plan for saving them.
Unit 3 Conserving our tropical rainforests
Spread the idea of Spread the idea of conservationconservation
We should spread the message of conservation to people living in rainforests and people living in developed countries, which would help in changing their attitude away from destroying rainforests to preserving them.
What can we do to help save tropical rainforests?
What can we do to help save tropical rainforests?
Unit 3 Conserving our tropical rainforests
Stop buying tropical Stop buying tropical timber productstimber products
A more direct way is to stop buying products made of tropical timber, which would help reduce timber trade and commercial logging.
What can we do to help save tropical rainforests?
What can we do to help save tropical rainforests?
Unit 3 Conserving our tropical rainforests
Protect our country parksProtect our country parks
Do not damage trees in country parks.
When you have a barbecue, make sure that the food is not cooked over charcoal.
Do not forget to put out the fire you lit before leaving the barbecue site.
What can we do to help save tropical rainforests?
What can we do to help save tropical rainforests?
Unit 3 Conserving our tropical rainforests
Terms to learnTerms to learn
Conservation of tropical rainforests (Conservation of tropical rainforests (熱帶雨林保熱帶雨林保育育 )) – to protect tropical rainforests by stopping all – to protect tropical rainforests by stopping all kinds of development activities.kinds of development activities.
Sustainable development of rainforestSustainable development of rainforest (可持續性發展雨林 ) - tropical rainforests are opened up in such a way to ensure the resources are not depleted in future.
Unit 3 Conserving our tropical rainforests