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The Rainforest Biome

Updated on October 22, 2011

Biomes are outlined as the world's leading communities, categorized according to the prevailing vegetation and defined by adjustments of organisms to that specific environment.

The significance of biomes cannot be overvalued. Biomes have altered and proceeded many times during the life’s history on Earth. More lately, human functions have drastically changed these communities. Therefore, conserving and preservation of biomes should be a main interest to all.

All  the natural biomes of this planet exist to maintain a balance and harmony so that we could live our lives in a better manner. But unfortunately the modern industrial revolution is fast destabilizing this balance. Most of our present day biomes are being destroyed by pollution. Therefore we should understand why these ecosystems are important to us.

An important categorization of biomes is: Land biomes, Marine biomes and Freshwater biomes.

What defines a rainforest?

The tropical rainforest biome is a hot, damp biome found close equator of the Earth. The plain and simple answer is that rainforests are outlined by the frequency and quantity of rain.

There should be at least 1755-3000 mm of rain annually to be a rainforest and the rain should not be dispersed extremely not even during the year.

For instance, definite tropical savannas get rain just a few months in a year in monsoon-just like downpours.

Such a huge dry season though, rigorously subdues growth of the plants and it is the plants that actually bring in the rainforest.The rain just aids influence the plants that grow here.

Rainforest Biomes

There are two types of rainforest biomes: the temperate and the tropical. Both of these types of rainforest biomes are threatened.

Tropical rainforests biomes are billions of years old, and temperate rainforests biomes are about 20,000 years old.

Location of Tropical Rainforest Biome

Tropical rainforests biomes generally take place inside the equatorial regions of the World. Tropical rainforests biomes are bounded to the small land field.

A Description Of Rainforest Biome

Rainforest along Elk River trail, Strathcona Park, Vancouver Island, Canada
Rainforest along Elk River trail, Strathcona Park, Vancouver Island, Canada

Tropical Rainforest

All Tropical rainforests have same features including precipitation, climate, canopy structure, complicated symbiotic relations and an impressive variety of species.

Tropical Rain forests are rocks of diversity. They cause and support 60 percent of all living organisms on Earth even although they cover up less than 7% of the surface of the Earth. A significance of rainforest biome is truly inconceivable when it comes to species variety.

Are We Losing the Tropical Rainforest?

In reality, just a few hundred years ago, tropical rainforests are anticipated to have enclosed as much as 15% of the surface of the land on earth. This was about 7 Meg square miles (14.9 Meg square km).

Today it is projected that less than 6% of land of the Earth is covered up with these forests (about3 to 4 million square miles). More significantly, one-thirds of the tropical rainforests of the World be as fragmented ends.

Global Deforestation Facts

Amazon Rainforest
Amazon Rainforest

Largest Tropical Rainforest

The largest constant stretch of Tropical rainforest is found in the North America’s AmazonRiver basin.

More than half of this Tropical rainforest lies in Brazil, which accommodates about two-third of the remaining tropical rainforests of the World. Another 30% of the remaining Tropical rainforest of the World exists in CongoBasin and Indonesia.

Green Lake Trail, Mt Rainier
Green Lake Trail, Mt Rainier
A tree in the Hoh Rainforest,
A tree in the Hoh Rainforest,

Tropical Rainforest Layers

A Tropical rainforest grows in four major layers, with unusual flowers, trees and other types of plants in each layer.

The layers of Tropical rainforest are:

1. The Top Layer (called the emergent layer)

The big trees climb high above the remaining of the forest.

2. The second layer (called the canopy)

Tall trees growing put together.

3. The third layer (called the under storey)

Smaller trees, plants and bushes such as ferns, make the under storey. The canopy (second layer) blocks the sunlight so that not much of the sunlight reaches here.

4. The fourth layer (called the forest floor)

Some of the plants grow on the floor of the forest because nearly no sunlight reaches here. The plants and leaves that fall from the upper layers render protection and food for insects and some other animals.

Rainforest Fungus in the Cameron highlands rainforest in Malaysia
Rainforest Fungus in the Cameron highlands rainforest in Malaysia

The hot, scorching and humid conditions cause tropical rainforests a perfect environment for bacteria and some other microorganisms. As these organisms stay active during the year, they rapidly decay matter on the floor of the forest.

In some other biomes, like deciduous forest, the decay or decomposition of leaf debris adds some of the nutrients to the soil.But as in the tropical rainforest, plants grow so rapid that they quickly use the nutrients from the decayed leaf debris.

As a consequence, most of the nutrients are enclosed in the trees and some other plants instead than in the soil.


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    • profile image

      bushrah maan 5 years ago

      it's a wonderful job done by you. Very good resource for middle school students. I have given this as a project resource to my students.

    • profile image

      margretta 5 years ago

      i never realized hw beautiful forests cn b

    • natures47friend profile image

      natures47friend 6 years ago from Sunny Art Deco Napier, New Zealand.

      Great hub. Humans are so greedy, they do not care what perishes and goes into extinction. I'd like to see the Amazon forests one day before they disappear (lets hope we can save a big enough area so there will be no island effects!

    • Durant profile image

      Joel Durant 6 years ago from Canada

      Rainforests are so beautiful. I love seeing all that green moss

    • chspublish profile image

      chspublish 7 years ago from Ireland

      Thanks for the great hub. Very well done.