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Harmful Effects of Deforestation

Human beings always have been and probablythan other forest and a very serious effect
always will be to some extent dependent onof deforestation in tropical countries is the
forests. Trees were their habitat, theirloss  of  biodiversity.
environment, their source of food and their
protection from enemies. Forests are veryHeavy Soil Erosion - One function of the
important to man, and other organisms, andforest is that its roots hold the soil in
one of the biggest problems the world isplace. Without trees soil erosion and
facing today is the threat of totally losinglandslides easily happen. When heavy rains
the forests due to massive deforestation andand typhoons come, soil is easily carried to
suffering the harmful effects oflower areas especially to communities at the
deforestation.foot  of  the  mountains.
Deforestation can be defined as the largeGreenhouse Effect - Deforestation increases
scale removal of forests. Deforestationthe amount of carbon dioxide in the
occurs when forests are converted toatmosphere. The conitnued degradation of our
non-forest areas for urbanization,forest heightens the threat of global warming
agriculture, and other reasons withoutbecause the trees and other plants that takes
sufficient reforestation. It is the permanentup carbon dioxide from the atmosphere to be
destruction  of  forests  and  woodlands.used for photosynthesis are gone. The burning
of wood or its decay contributes to the
At present, forests are considered among therelease of more carbon which combines with
most endangered on the planet. Everyday atoxygen in the atmosphere thus increasing
least 80,000 acres of forest vanish fromfurther the levels of carbon dioxide that
Earth. The Food and Agriculture Organizationcauses  greenhouse  effect.
(FAO) of the United Nations show that the
rates of deforestation has not abated and hasSilting of Rivers and Dams - Deforestation
actually increased by 8.5% from 2000-2005results in the silting of rivers sediments
compared during the 1990s. FAO hasdeposit which shortens its life span and
approximated that about 10.4 million hectaresclogs irrigation system. As a result of
of tropical forest have been permanentlydeforestation, the reservoir behind many dams
destroyed from 2000-2005 compared to 10.14are filled with sediments more rapidly than
million  hectares in the period of 1990-2000.expected.
The process of deforestation is often aFlooding - One major importance of forest
complex pattern of progressive fragmentationis that they absorb water quickly in great
of the forests. Mistakes of this sort couldamount during heavy rains. But due to massive
lead to forest destruction. Along with thisdeforestation there are no trees to absorb
destruction is the extinction of manythe water thus resulting to the loss of many
species, heavy soil erosion, greenhouselives.
effect, silting of rivers and dams, flooding,
landslides, denuded upland, degradedLandslides - The roots of the trees bind
watershed, and even destruction of coralssoil to it and to the bedroock underlying it.
along  the  coast.That is how trees prevent soil from getting
eroded by natural agents like wind or water.
Extinction of Thousands of Species -When trees are uprooted, there will be
Destruction of the forests leads to a tragicnothing to hold the soil together thus
loss of biodiversity. Millions of plants andincreasing the risk for landslides which can
animal species are in danger of disappearingcause seriously threaten the safety of the
as a result of deforestation. Tropicalpeople and damage their properties.
forests are much more biologically diverse



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