Deforestation Presentation 2010

8/9/2019 Deforestation Presentation 2010

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Deforestation is the clearance of naturally occurring forests

by loggingand burning. It can lead to many bad effect to the

global climate.


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Deforestation is a contributor to globalwarming, and is often cited as one of the major causes

of the enhanced greenhouse effect. Tropical

deforestation is responsible for approximately 20% of

world greenhouse gas emissions. According tothe Intergovernmental Panel on Climate

Change deforestation, mainly in tropical areas, could

account for up to one-third of total anthropogenic

carbon dioxide emissions.

Disregard or ignorance of intrinsic value, lack of

ascribed value, lax forest management and deficient

environmental law are some of the factors that allowdeforestation to occur on a lar e scale. In man


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The removal of trees without sufficient

reforestation has resulted in damageto habitat, biodiversity loss and aridity. It has adverse

impacts on biosequestration of atmospheric carbon

dioxide.


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There are many root causes of contemporary

deforestation, including corruption of governmentinstitutions, the inequitable distribution of wealth, population

growth, and urbanization. Globalization is often viewed as

another root cause of deforestation, though there are cases

in which the impacts of globalization (new ows of labor,

capital, commodities, and ideas) have promoted localized

forest recovery.

In 2000 the United Nations Food and Agriculture

Organization (FAO) found that the role of population

dynamics in a local setting may vary from decisive to


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hereas deforestation was primarily driven bysubsistence activities and government-sponsored

development projects like transmigration.

By the 1990s the majority of deforestation was

caused by industrial factors, including extractive

industries, large-scale cattle ranching, and extensive

agriculture.


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AtmosphericDeforestation is ongoing and is

shaping climate and geography. Deforestation is a

contributor to global warming, and is often cited as one of

the major causes of the enhanced greenhouse effect.

Deforestation may cause carbon stores held in soil to be

released. Forests are stores ofcarbon dioxode and can be

either sinks or sources depending upon environmentalcircumstances. , the incineration and burning of forest

plants to clear land releases large amounts of CO2, whichcontributes to global warming.

Reducing emissions from the tropical deforestation

and forest degradation (REDD) in developing countries

has emerged as new potential to complement ongoing climate


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HydrologicalThe water cycle is also affected by deforestation. Trees

extract groundwater through their roots and release it intothe atmosphere. When part of a forest is removed, the treesno longer evaporate away this water, resulting in a much drier climate.D

eforestation reduces the content of water in the soil andgroundwater as well as atmosphericmoisture. Deforestation reduces soil cohesion, sothat erosion, flooding and landslides ensue.

Instead of trapping precipitation, which then percolates togroundwater systems, deforested areas become sources ofsurface water runoff, which moves much faster thansubsurface flows. That quicker transport of surface water can translateinto flash flooding and more localized floods than would occur

with the forest cover. Deforestation also contributes todecreased eva otrans iration which lessens atmos heric


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oilDeforestation generally increases rates of soil erosion,by increasing the amount of runoff and reducing the

protection of the soil from tree litter. This can be an

advantage in excessively leached tropical rain forest soils.

Forestry operations themselves also increase erosion

through the development of roads and the use of

mechanized equipment.

Tree roots bind soil together, and if the soil is sufficiently

shallow they act to keep the soil in place by also bindingwith underlying bedrock.

Tree removal on steep slopes with shallow

soil thus increases the risk of landslides, which

can threaten people living nearby.


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Ecological

Deforestation results in declines in biodiversity. The removalor destruction of areas of forest cover has resulted in a

degraded environment with reduced biodiversity. Forests

support biodiversity, providing habitat for wildlife; moreover,

forests foster medicinal conservation. Most predictions of

forestry related biodiversity loss are based on endangered

flora and fauna.

It has been estimated that we are losing 137 plant, animal and insect

species every single day due to deforestation,

which equates to 50,000 species a year.

Predictions have been made that more than

40% of the animal and plant species in

South east Asia could be wiped out in the

21st century.


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If deforestation is a negative event, then a positive event should take place to

counter its effects REFORESTATION! Plant trees and begin doing this in youryard. Trees give off oxygen that is essential for human existence and they, inturn, capture the carbon dioxide that humans and animals exhale. Trees also helpin containing water in its roots. With this simple act, you are able to prevent soilerosion, which is the root cause of landslides!

Use recycled items such as books or pad paper, toilet paper, even shopping bags.If you can, do not waste any of these products so that no new raw materialwould be required to replace them.

Way to balance the needs for resources with the needs to conserve the naturalresources.To make a sustainable development without jeopardizing or depleting the naturalresources.To exploit natural resources in a sustainable way, so these resources can be

replenish and renewed for future generations to continue to use them.


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Documents

Deforestation Presentation 2010