Cloud forests are yet another type of rainforest, so-called because they can be found high up mountains, where they are nearly always in cloud. The climate here is very cool but extremely wet.
The second largest is in central Africa in the Congo Basin where two-thirds are found in the Democratic Republic of Congo. Rainforests Why are They Important?
What is a Rainforest?
Introduction Rainforests nearest to the equator, where the climate is very hot and wet all through the year, are evergreen because the trees can grow all of the time and so are always in leaf. Read More: Why are Rainforests Important?
Rainforest Tribes Factsheet. Rainforest Animals Factsheet. What is the structure of the tropical rainforest? How did the tropical rainforest get like this? How has the vegetation adapted to the climate? What is the impact of humans on the rainforest? What is the future for the tropical rainforest? Desert Tundra. Tropical Rainforest Where are tropical rainforests found?
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What is the impact of humans on the tropical rainforest? Where are tropical rainforests found? Tropical rainforests are located around the equator where temperatures stay near 80 degrees year round. Rainforests receive to inches cm of rain each year. The Tropical Rainforest is a forest occurring in tropical areas of heavy rainfall. It is abundant with many species of wildlife and vegetation.
2. Tropical forests have become a net carbon emitters.
Rainforests cover less than two percent of the Earth's surface. They are home to some 50 to 70 percent of all life forms on our planet.
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Rainforests are the most productive and most complex ecosystems on Earth. What is the structure of vegetation in the rainforest? The image above shows a typical cross section in the rainforest. Emergents are the tallest trees and are usually over 50 metres tall. The Kapok tree is an example of an emergent. The sea of leaves blocking out the sun from the lower layers is called the canopy. This includes birds, snakes and monkeys.
Plantwatch: Britain’s ancient endangered rainforests
Lianas vines climb to the canopy to reach this sun light. The under canopy mainly contains bare tree trunks and lianas. The shrub layer has the densest plant growth. It contains shrubs and ferns and other plants needing less light. Saplings of emergents and canopy trees can also be found here. The forest floor is usually dark and damp. It contains a layer of rotting leaves and dead animals called litter. This decomposes rapidly within 6 weeks to form a thin humus, rich in nutrients.
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Th e high rainfall and year-round high temperatures are ideal conditions for vegetation growth. The wide range of plants encourage a huge variety of insects, birds and animals. How has vegetation adapted to the climate? In the tropical rainforest most trees in the rainforest have wide buttress roots. This is to support them as they grow incredibly tall over ft in some cases as there is great competition for sunlight. Lianas vines grow around trees as they bid to reach sunlight. 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.
Why Are Rainforests Important?
Leaf stems are also flexible to allow leaves to move with the sun to maximise photosynthesis. Deforestation cutting down trees is a major problem caused by humans in the tropical rainforest.
Global Rates of Deforestation: 2. Place you mouse over the image to discover the causes. Click to view information on each factor. Slash and burn Most clearances are still by the local people and tribes needing land on which to grow crops. Vegetation is cut down and then burned. The ash acts like a fertiliser adder nutrients to the soil. When the soil begins to turn infertile usually after years the people move on.
This is called shifting cultivation.