An introduction to the future of the worlds rainforests

How many rainforests are there in the world

Companies that harvest timber should not be allowed to "clear cut" large areas of forest and should be required to plant new trees after they cut old trees down. Inform students that this nut is called a Brazil nut. Rainforests are also home to endangered or protected animals such as the Sumatran rhino , orangutans , and jaguars. This is called the greenhouse effect and causes global warming. The image above shows a typical cross section in the rainforest. It is a sustainable method of farming in the rainforest. Wildlife and plant life is reduced. Many animals from the rainforests are brought to our country illegally.

About 17 percent of the Amazonian rainforest has been destroyed over the past 50 years, and losses recently have been on the rise.

Ask for some student volunteers.

why are rainforests important

Rainforests produce, store, and filter water, protecting against soil erosion, floods, and drought. The government has cleared large areas of the Amazon Rainforest and encouraged people to move there.

Most have died from western diseases such as malaria to which they have no immunity.

amazon rainforest

The nutrients from the leaves that fall are instantly recycled back up into the plants and trees. Global: Global Warming Rainforest canopies absorb carbon dioxide which is a gas in the atmosphere.

rainforests of the world

Villagers in a rainforest burn trees to make charcoal Most of the products that we use in our country come from rainforests, such as rubber, coffee and rain forest lumber. This will ensure younger trees survive longer and will encourage careful management of the rainforest.

An introduction to the future of the worlds rainforests

Global: Global Warming Rainforest canopies absorb carbon dioxide which is a gas in the atmosphere. Lianas vines grow around trees as they bid to reach sunlight. All rights reserved Reference Rainforests, explained Rainforests play an invaluable role in sustaining life, but every year, large portions of them are cut down for logging, mining, and cattle ranches. Global Rates of Deforestation: 2. After video, compare student responses about the growth and origin of this type of nut. National: Deforestation can consume a country's only natural resource. Nutrients in the soil are quickly exhausted as there is no longer a humus layer to provide nutrients. And scientists believe that's just the tip of the iceberg: there are many species of plants and animals in the rainforest that haven't even been discovered yet! Leaf stems are also flexible to allow leaves to move with the sun to maximise photosynthesis.

Slash and burn Most clearances are still by the local people and tribes needing land on which to grow crops. Ask students to work with their partner to define the word "sustainable. There, the trees are pollinated by bees that also visit orchids, and their seeds are spread by agoutissmall tree mammals.

Rainforest facts

Explain that the Brazil nut is one of many products that come directly from the rainforests of the world, like the one shown in the video in the South American Amazon region. The government has cleared large areas of the Amazon Rainforest and encouraged people to move there. Other efforts focus on reforestation, planting trees and reintroducing wildlife—in the Amazon, for example, a large-scale project announced in aims to plant 73 million trees. The removal of top soil means little vegetation will grow. The sea of leaves blocking out the sun from the lower layers is called the canopy. Also, soil erosion leads to flooding as soil is deposited on river beds. This decomposes rapidly within 6 weeks to form a thin humus, rich in nutrients. The leaves of many trees are waxy and have drip tips to allow water to run off them so that water does not gather on leaves and cause them to rot, it also allows water to reach the roots on the forest floor.
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Rainforest and Amazon facts and information