What are the effects of deforestration?
Answer:
The forest (trees) is what we get oxygen from. Deforestation contribute to gassy atmosphere
Desication of previously moist forest soil
What happens is because of the exposure to the sun, the soil gets baked and the lack of canopy leaves nothing to prevent the moisture from quickly evaporating into the atmosphere. Thus, previously moist soil becomes dry and cracked.
Dramatic Increase in Temperature Extremes
Trees provide shade and the shaded area has a moderated temperature. With shade, the temperature may be 98 degrees Farenheit during the day and 60 degrees at night. With out the shade, temperatures would be much colder during the night and around 130 degrees during the day.
Moist Humid Region Changes to Desert
This is related to the desicaiton of previously moist forest soil. Primarily because of the lack of moisture and the inability to keep moisture, soil that is exposed to the sun will dry and turn into desert sand. Even before that happens, when the soil becomes dry, dust storms become more frequent. At that point, the soil becomes usesless.
No Recycling of Water
Moisture from the oceans fall as rain on adjacent coastal regions. The moisture is soon sent up to the atmosphere through the transpiration of foliage to fall again on inland forest areas. This cycle repeats several times to rain on all forest regions.
Less Carbon Dioxide and Nitrogen Exchange
The rainforests are important in the carbon dioxide exchange process. They are second only to oceans as the most important "sink" for atmospheric carbon dioxide. The most recent survey on deforestaiton and greenhouse gas emisions reports that deforestation may account for as much as 10% of current greenhouse gas emmisions. Greenhouse gases are gases in the atmosphere that literally trap heat. There is a theory that as more greenhouse gasses are released into the atmosphere, more heat gets trapped. Thus, there is a global warming trend in which the average temperature becomes progressivily higher.
More Desertification
According to the United Nations Enviromental Programme (UNEP) in 1977, deforestation is an important factor contributing to desertificaiton. What is unclear is how fast deserts are expanding is controversial. According to UNEP, between 1958 and 1975, the Saharen Desert expanded southward by about 100km. In 1980 UNEP estimated that desertification threatened 35 per cent of the world's land surface and 20 per cent of the world's population. Recently, groups challenged those conclusions. Some scientists claim that the conclusion were based on insufficient data. Nevertheless, desertification still threatens more and more drylands.
Soil Erosion
The relationship between deforestation and soil ersion. Deforestation is known to contribute to run-off of rainfall and intensified soil erosion. The seriousness of the problem depends much on soil characteristics and topography.
Other Effects
There many rewards such as clean air and clean water, perhaps the two most important, that forests provide. Rainforests also provide many aesthetic, recreational and cultural rewards. If the rainforests are destroyed, then these rewards dissappear. This has major social
The process of deforestation had numerous social effects
It reduces the amount of forests
Hi ,Have you ever noticed ,on a hot day it is a lot cooler under a tree.
I like this Q.
1.The worst effect of deforestion is global warming.
2. soil errosion is another major effect.
3. Climate change
4.green house effect.
to know more mail me on green_b@rediffmail.com
Well, trees help a lot in reducing greenhouse gases, absorbing CO2 in great amounts. This is lessened with each bit more of deforestation. Then, there is the fact that the habitats of so many creatures that live in the environments that are being "deforested" are diminishing and being eliminated such that they are finding it harder and harder to survive. The basic results are lessening our planet's ability to right itself in terms of absorbing the CO2 that we're causing, while also destroying the habitats of many species who are declining and unable to find proper homes in the wake of the deforested lands.
I lived on an 13 x7 mile island a few years back~
One end was rain forest~
The other was stripped of trees~
Trees require water~
Therefor; all of the rain went to one end~
That which had no trees rarely received rain~
Believe me they were starting to plant and the hot end~!~
I also lived on the Oregon coast~
And watched a great deal of land slip into the rivers and oceans as there were not roots to hold the land~
The first and most obvious effect is on the economy of the third world world country involved. There is an increase in productivity and even if the "developers" are western multinationals, jobs are created for poor locals who otherwise struggle to feed their families.
Once you get past that and decide that you really do not care if these people live or die there are other effects. (Don't worry, if you care enough about nature you will get there, it's not as if you can hear them scream.)
The worst of these is loss of habitat and a general lose of biodiversity. This is the main issue, we fabricate other issues for support. Of course this destruction releases greenhouse gases. We have gone to great lengths to convince people that greenhouse gases are bad so that we can use this argument.
Unfortunately the grasses that replace the trees are better at preventing erosion, still why let the truth stand in the way of a good argument. Without trees to use up all the water it ends up in the streams, that is an effect. Probably all good, aquatic ecosystems dams etc.. Another good myth is that deforestation causes a reduction in rainfall, you will find that a lot of people fall for that one. Actually I know of at least two places in the World where the microclimate appears to have changed because of changes in forests. Seems that it requires very special conditions, we don't have to mention that. It is almost impossible to measure the effects on Oxygen levels but hey they cannot prove that there isn't an effect for the same reason.
So in summary we can forget the good bits and most of the truth and say that deforestation:
Increases CO2 levels
Reduces biodiversity
Affects erosion
Contributes to Global warming
Causes Climate Change
Reduces rainfall
Reduces oxygen levels
Causes cancer
Contributes to obesity
Will precipitate an iceage
Causes acid rain
Is responsible for crime
And, well pretty much anything else you to blame on it.
LOL
co2 buildup.
Birds have to set on the ground.
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