If I i explain sth briefly,it is
"soil become not to grow up flowering plant"
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A desert is a part of natural surface
of the earth. All that matters is the area called half-arid
region which spreads out around desert. But it is not a desert
with a half-arid region, water does not accumulate. Annual
precipitation is like 200-500MM. But it concentrates at one year
of time to be and it rains at it, occasionally it may not rain
and it may become a drought.
Grass and the low tree have usually grown in the half-arid
region. land fertility since it is good, it is suitable for
raising farming and livestock But, this thing causes the problem.
It changes in any nature. A half-arid region also changes natural
environment by change of climate. If rain increases, a herbal
prairie will change to the prairie where a low tree takes and
grows thick. If rain decreases, a low tree will return to a
sparse prairie. Like this, since change is a part of natural
cycle, it does not become damage. If it changes to a prairie,
people who raise livestock will be saved. If a low tree takes and
grows thick, it will become the firewood which a villager uses.
But, this natural cycle may be disturbed greatly. Past of fault
pasturage or a tree is come nature. The surface of the earth
which became beginning to turn will wash away soil, if it rains.
The ground is blown away by the wind at the dry season. If
pervasion of soil progresses, any plants will not grow up. If
livestock are reduced or felling of a tree is stopped while it is
early, the ground may return to a basis. if it throws fertility
good land will be lost There is only attaching the way to
desertification and progressing after that. In this way, a desert
begins to spread.
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But it is "water will become dirty" when it says
at a word, since it is past a word , an example is simply taken
out with this. For example, suppose that water is used to make
some at a factory. Then, water will become dirty very much. It
will flow into a river and will soil a river. It gets down from
water pollution by polluting water. Almost all the wastes that
entered into water are disassembled automatically in a sewage
disposal plant.
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It need to stop destroyed forests for
to stop desertification.We must not waste money good for to stop
destryed forests.And want to stop grazing.But that can't because
they live.But,if we can stop destroyed forests, we can stop
desertificatuon!
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For example,if you wipe the
table,you should use dishcloth.If you that,you keep away waste
your forests. And other, you shouldn't as use as possible
disposable chopsticks.I's you keep awy waste your forests!
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