what is the effect of forests on human life?

Answer 1

Climate Change
When an area of rainforest is either cut down or destroyed, there are various climate changes that happen as a result. The following is a list of the various climate changes with a brief description of why they come about.


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 repercusions for the entire world.

Answer 2

To know the global effect you will have to know the micro effect. Example take a very sunny day, an outfield, and a cluster of trees (patch) on that field. Stand in the sun for 10 minutes, and then get under that cluster of tree. Now you are protected from the heat, the ultra violet rays of the Sun. You feel cooler, breathe better (because of Oxygen emissions). cut out all the trees and come back to the same spon the next day, and you will be cursing the hell out of the guy who chopped of the trees.

Answer 3

ITs a Lot the Floods what WE R all the total community is facing is because of the Deforestation in the world the total weather condition is changing so if weather condition is changing we have to change ourselves according to the Weather were we are living that is this world. So ITS proved that the weather has the effect on the HUMAN life

Answer 4

Forests play a gret role in the human life in the form of climate, temperature. humidity, rainfall, occuption, paper industry, medicines, wild life sancturies, lot of naturaL RESOURCES, prevent soil erosion, builds a strong water table in the underground. These are only a few points,there is more if each point is elaborated.

Answer 5

Oxygen, it's sort of addictive so they are handy for that.
Medicine, lots of new pharmaceuticals are developed from rain forest discoveries
Timber, your house probably has some rain forest timber in it.

There are 3 effects for you. Research for more on 'rain forest ecology'.

Answer 6

We need to breath oxygen to live - most of the world's oxygen is produced in forests.

Answer 7

most of the oxygen we get from trees so as the number of forests decreases amount of oxygen decreases...
secondly trees helps in raining due to the photosynthesis process and due to green house effect so same if we decreases the trees...
thirdly trees helps in preventing soil errosion bcoz of there roots...

Answer 8

Trees provide oxygen that is vital to human life. They also absorb co2 which is incredibly harmfull to the enviroment and to people.

Answer 9

They produce oxygen

Answer 10

Notonly do they provide aserious amount of the things you use daily but they also PROVIDE THE OXYGEN YOU BREATH!!!!!!!!