Case Study: Deforestation in the Amazon Rainforest

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29 Terms

1
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What percent of the earth’s surface does the TRF span?

7%

2
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What percentage of oxygen does the TRF produce?

20%

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By how many acres does the TRF deplete by every minute year - what percent is already gone?

78 million acres every year.

34%

4
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Where is the Amazon rainforest located?

South America.

It spans across 9 countries: Brazil, Peru, Ecuador, Colombia, Venezuela, Bolivia, Guyana, Suriname and French Guiana.

5
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Why does the ARF have an Equatorial climate?

Because it is located near the equator, where the suns rays strike the earth directly.

This results in consistently high temperatures and significant solar energy year-round.

The intense heat causes high levels of evaporation, leading to frequent and abundant rainfall.

This combination of heat moisture creates the hot, humid conditions characteristics of equatorial climates.

6
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Why did deforestation rates accelerate in the 1970s?

The opening of roads that travel deep into the forest, like the trans-amazonian highway.

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Why did deforestation increase in 2015?

Due to the demand for Palm oil.

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By 2030, how much of the ARF is estimated to be left with no trees?

27%

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What is logging? What is felling?

The cutting, skidding and processing of loading trees or logs onto trucks or other vehicles.

Felling is when vast areas of rainforest are cleared in one go, mostly to farm timber.

Logging overs 3% of the causes of deforestation in the brazilian rainforest.

10
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What happens when logging is managed improperly?

It potentially removes habitats for wildlife such as birds and animals that use trees for cover, nesting habitat or food.

If logging occurs along stream banks, the risk of flooding and erosion will increase.

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Why may mineral extraction increase in the ARF?

The economic benefits of the industry means its likely to rise. The ARF is an abundant natural resource, with mineral including copper, tin, nickl, gold etc. The ARF is estimated to contain a quarter of the worlds gold.

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What is the carajas mineral province in Brazil and what does it do?

It is the worlds largest copper reserve.

It extracts charcoal from 6100km of forest per year.

Deforestation on this scale contributes to the encroachment of indigenous lands and loss of natural agriculture.

13
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Why are dams beginning to be built in the ARF?

There's an unlimited supply of water and ideal river conditions which have encouraged dams to be built to generate hydroelectric power.

14
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How do dams used to generate hydroelectric power contribute to deforestation?

Often the dams have a short life and cause vast areas of forest to be flooded. The submerged forest gradually rots, making the water very acidic. This then corrodes the HEP turbines. The dams also become blocked with soil-washed down deforested sloped by the heavy rain.

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How is the rainforest being used for cattle ranching and what is it?

Vast areas are being cleared so that cattle an be raised by mass on a pasture. When the cows reach a certain size and weight, they are slaughtered for meat which is then distributed around the world.

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How does cattle ranching contribute to deforestation?

Cattle ranching counts for 80% of the rainforest’s destruction. This method isnt sustainable as the quality of the land declines quickly, so farmers must clear more land when the quality gets particularly bad and leave the poor quality soil.

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How has the increasing rate of deforestation caused conflict?

Indigenuous people, loggers and other developers often have disputes over the land, causing conflict.

People such as cattle ranchers, loggers and farmers often argue over land use for their own reasons and profit.

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How is global warming a global impact of deforestation?

Deforestation means there are less trees to absorb CO2 from the atmosphere, therefore causing the earth’s temperature to increase.

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How is loss of biodiversity a global impact of deforestation?

It is estimated 137 plant, animal and insect species are lost every day.

Habitats are lost due to the increasing deforestation leaving many animals endangered.

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How is the decline of indigenous tribes a local impact of deforestation?

Currently around 240 tribes left.

Many may have died as a result of western colonisation and diseases.

Many are also forced out of their homes and rainforest all together by the construction roads, logging, farming and mining.

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How is river pollution a local impact of deforestation?

In gold mining, mercury is used to separate the gold from the mud, and as a result it is common for it to seep into the local rivers.

As the ARF is interdependent, if fish and other aquatic organisms died from the pollution, this would impact other animals further up the ecosystem.

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How will eco-tourism help the ARF be more sustainable?

It provides jobs for locals and uses local produce - supports local industry.

It is sustainable and minimises the consumption of non-renewable resources and the ecological impact.

A way of educating people on the importance of sustainability.

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How will selective logging help the ARF be more sustainable?

This is cutting down trees when they are fully frown and then once cut down, planting saplings in their place, leaving them to grow.

This protects the ground from erosion and can be a 30-40 year cycle.

However, can still be damaging as when one tree falls, it can bring down 30 others.

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How will agroforestry help the ARF be more sustainable?

This involves combining crops and trees, by allowing crops to be grown in carefully controlled, cleared areas within the rainforest, and by growing rainforest trees on plantations outside the rainforest.

This can increase biodiversity and reduce erosion in the areas plants are growing.

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How will inter-government agreements on hardwoods and endangered species help the ARF be more sustainable?

This is aimed at protecting the biodiversity of the rainforest and the animal species that live there, as well as the resources the rainforest can provide. For example, the international timber agreement (2006) which restricts the trade in hardwoods taken from the TRF. Sustainably felled timber is marked with a registration number.

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How do debt reductions by HICs aim to reduce deforestation?

Most countries with TRFs within their boundaries are either NEEs or LICs. Schemes known as debt-for-nature swaps can be arranged. For example, in 2010, Brazil and the USA signed an agreement to swap a large Brazilian debt of 13.5 million into a fund to project large areas of the TRF.

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How does conservation and education by NGOs aim to reduce deforestation?

For example, WWF.

They aim to promote the conservation message, provide practical help to make different programmes more sustainable. They also purchased threatened areas to turn them into nature reserves.

28
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Why do TRFs need to be managed sustainably? What is sustainable management?

If the goods and services of the rainforest are not protected they'll be lost. Sustainable management means using the resources in such a way that they are still available for future generations.

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How will stopping illegal logging improve the sustainability of the ARF?

Illegal logging can go easily unnoticed and is still happening on a large scale. However, satellites and drones are now helping to monitor this.