1. A Group Assignment by
Fatima Masood & Asim bin Waheed
IMPACT OF DEFORESTATION ON CLIMATE AND
ENVIRONMENT

2. 5 July 2013IMPACT OF DEFORESTATION ON
ENVIRONMENT
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3. DEFORESTATION
• Deforestation is
the "permanent
removal of
standing forests”
• Deforestation
include
conversion of
forestland to
farms or urban
use
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4. DEFORESTATION
• Forests currently cover only 2.5 per
cent of Pakistani land area, the country
has the highest annual deforestation
rate in Asia, according to the latest
findings of the World Wide Fund for
Nature
• 61,000 hectares (approx over 151,500
acres) of forest land have been
converted to non-forest use in the
country since its inception
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5. CAUSES OF DEFORESTATION IN PAKISTAN
Pakistan is one of those
countries where rate of
deforestation is extremely
higher.
The main cause of
deforestation in Pakistan is
the day-by-day increase in
population which increases
requirement of the food and
land for residential
purpose. In addition, the
requirement for
furniture, other household
products and fuel is also
increasing
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ENVRONMENT
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6. CAUSES OF DEFORESTATION IN PAKISTAN
People are clearing forests
to make residential
colonies, roads between
and within cities and for
agriculture usage. Wood,
which is gained by these
forests and trees, is used
to make building materials,
furniture, paper products
and is used as firewood in
most rural areas of the
country
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ENVRONMENT
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7. IMPACT OF DEFORESTATION ON CLIMATE
AND ENVIRONMENT
Deforestation not only affects
the climate by increasing the
atmospheric level of carbon
dioxide but also affects the
environment by inhibiting
water recycling, triggering
severe flooding, aquifer
depletion, soil degradation
and the extinction of plant
and animal species
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ENVRONMENT
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8. IMPACT OF DEFORESTATION ON CLIMATE
AND ENVIRONMENT
Cutting down forests will cause a decline in
photosynthetic activity which results in the
atmosphere retaining higher levels of carbon
dioxide. Forests also store an enormous
amount of organic carbon which is released
into the atmosphere as carbon dioxide when
forests are cleared by burning.
Clearly, deforestation contributes to global
warming. This deforestation is a real harm
for our ecosystem and environment. It is the
main cause of global warming worldwide
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ENVRONMENT
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9. IMPACT OF DEFORESTATION ON CLIMATE
AND ENVIRONMENT
Water recycling is the movement of rain from
the forest to land masses further inland. In a
healthy forest about 3/4th of the intercepted
water is returned to the atmosphere as
moisture laden air masses which move
inland, cool and are converted to rain. Land
cleared by deforestation returns only about
1/4th of the rain water to the atmosphere. This
air mass has less moisture and delivers less
rain further inland. Deforestation inhibits
water recycling and converts inland forest to
dry land and potential waste land
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ENVRONMENT
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10. IMPACT OF DEFORESTATION ON CLIMATE
AND ENVIRONMENT
Severe flooding is a result
of deforestation because
removal of the forest leaves
little vegetative cover to
hold heavy rains. The
inability of land void of
forest to hold heavy rain
water will also trigger
mudslides. Severe flooding
and mudslides are
extremely costly because
they devastate homes and
communities
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ENVRONMENT
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11. IMPACT OF DEFORESTATION ON CLIMATE
AND ENVIRONMENT
The excess water from land cleared of
forest becomes runoff water and
enters the ocean instead of seeping
downward into the soil to recharge
aquifers. Aquifer depletion is already
becoming a serious problem in certain
areas of the planet and as the human
population continues to grow so will
the demand for fresh water
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ENVRONMENT
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12. IMPACT OF DEFORESTATION ON CLIMATE
AND ENVIRONMENT
Today deforestation, especially, in the
tropics, decimates plant and animal life.
Tropical rainforest contain about 7% of
land surface but over half of the plant
and animal species on the planet. If
tropical rainforest deforestation
continues at the current rate, it is
estimated that by the first part of the
21st century about half of the remaining
rainforest will be lost along with about 5
to 10% of all the species on the planet
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ENVRONMENT
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13. IMPACT OF DEFORESTATION ON CLIMATE
AND ENVIRONMENT
Deforestation also results in soil
degradation. Forests store
nutrients that are required for
all plant life. In the tropics
almost all nutrients are stored
in the vegetation because
tropical soil has little organic
matter and almost no nutrient
storage capacity. If tropical
forests are cleared for cropland,
the land will yield crops for only
a few years and when the
nutrients are depleted they
become waste land
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14. OBSERVED CLIMATE CHANGE IN PAKISTAN
• Change in temperature:
0.6-1.0 oC increase in
mean temperature in
coastal areas since
early 1900s
• Change in precipitation:
10-15% decrease in
coastal belt and hyper
arid plains over the last
40 years in northern
Pakistan
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ENVRONMENT
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15. DEFORESTATION INCREASE FLOODING IN
PAKISTAN
Deforestation in Pakistan
directly contributed to the
severity of flooding seen
there in 2010, 11, 12 and
13. With the hills and
mountains due to lack of
tree cover and erosion
increased, in places
dragging remaining tree
cover down causing
blockages, damaging dams
and increasing flooding
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ENVRONMENT
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16. PAKITAN IN LEADING TOWARDS……..
The rate of deforestation in
Pakistan has been accelerated
harshly and The World Wide
Fund Report warns that if the
current deforestation trend of
land conversion from forest to
other uses is not checked, the
country will not be able to
meet its international
commitments under the MDGs
to increase its forest cover
from 2.5 % to 6 % by 2015
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ENVRONMENT
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17. HOW CAN WE STOP DEFORESTATION ?
• Governments have
to make citizens
aware of the issue
including children
• Reduce wasteful
land use practices
• Improve already
developed lands
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ENVRONMENT
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18. HOW CAN WE STOP DEFORESTATION ?
• Each person can
plant trees once in
a while to maintain
the ecosystem
• Groups can be
formed to
decrease
deforestation
• Plantation weeks
in Pakistan
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ENVRONMENT
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19. CONCLUSION
• So it is the time for policy makers to
sit and think seriously about this
issue. New plans and strategies
have to be made to overcome the
problem
• Rules and regulations regarding
cutting of trees must be followed
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ENVRONMENT
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20. CONCLUSION
Government and
society including us
(the future disaster
managers) have to feel
their responsibilities
and individuals have to
play their role to
reduce the rate of
deforestation
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ENVRONMENT
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21. THANKS…..
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ENVIRONMENT
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