Slides in this set
What is it ?
Deforestation is the clearance of naturally occurring forests by the processes of humans' logging
and/or burning of trees and plants in a forested area.
Forests are cut down for many reasons, but most of them are related to money or people's
needs. The biggest driver of deforestation is agriculture. Farmers cut forests to provide more
room for planting crops or grazing livestock. Often many small farmers will each clear a few
acres to feed their families by cutting down trees and burning them in a process known as "slash
and burn" agriculture.…read more
HOW DOES IT HAPPEN?
Deforestation is brought about by the following:
conversion of forests and woodlands to agricultural land to feed growing numbers of people;
development of cash crops and cattle ranching, both of which earn money for tropical
commercial logging (which supplies the world market with woods such as meranti, teak,
mahogany and ebony) destroys trees as well as opening up forests for agriculture;
felling of trees for firewood and building material; the heavy lopping of foliage for fodder; and
heavy browsing of saplings by domestic animals like goats.
To compound the problem, the poor soils of the humid tropics do not support agriculture for
long. Thus people are often forced to move on and clear more forests in order to maintain
Deforestation also drives climate
change. Forest soils are moist, but
without protection from sun-blocking
tree cover they quickly dry out. Trees
also help perpetuate the water cycle by
returning water vapour back into the
atmosphere. Without trees to fill these
roles, many former forest lands can
quickly become barren deserts.
Bad things on deforestation
Soil erosion With the loss of a protective cover of vegetation more soil is lost…read more