Monday, December 13, 2010

Consequences

Carbon Cycle:     

    
       There are many consequences that come from the deforestation of land. Cutting down tree's is a direct link to global warming and the amount of carbon dioxide that is found in our atmosphere. The cutting of trees greatly effects the carbon cycle. Forest's act like a carbon store, they absorb carbon from the atmosphere and us it to create carbohydrates, protein and other nutrient needed for a plant to live and grow. As carbon dioxide is absorbed by the tree and photosynthesis occurs the tree produces oxygen which is used by humans. When forests are cleared, the tree's that are burnt or rotting also are emitting carbon dioxide, this is a major contributor to the green house effect. Deforestation contributes for one third of all carbon dioxide emissions.


Carbon cycle



Water Cycle:


      Tree's absorb ground water though there roots and release it back into the atmosphere though transpiration. In the amazon over half of the water in the region is found in the plant life. This is one of the reasons why rain forest are so humid and wet. When tree's are cut down the process of transpiration can no longer occur which means there is less water in our atmoshpere. This causes long term droughts in regions. Droughts alone can totally devastate a region and cripple it for years. Tree's retain water and hold the soil together, when there is no vegetation to hold everything together water runoff occurs causing soil erosion. The water runoff can seep into lakes and rivers were contaminants such as silt builds up, animals that are exposed to this can get sick or even die. Deforestation can also cause the watershed to no longer be able to sustain and regulate water flow, tree's are very good at absorbing the water but when there are no longer any tree's left this will result in flooding.



Water cycle



      In a forest their are hundreds of species which inhabit it. When deforestation happens all these animals no longer have a place to live. Some animals such as bears, foxes, raccoons and deer wonder into cities in search for shelter and food. Many animals become homeless and die off, some species also go extinct because of this. Another consequence of deforestation is desertification which is when a piece of land is stripped of its vegetation and little to no perception occurs for a substantial period of time simulating a desert like effect on the region. The more forestry and vegetation we destroy the greater the effects of global warming will be.


Frog only found in Amazon Rain forest

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