50
SOIL TO SAND
People’s actions are causing healthy
soil to lose its nutrients and turn into
loose, dry sand. This process
is called desertification. It
is bad news for us and for
the environment.
Deforestation
Trees are chopped down for fuel,
to make things with, and to clear
land for farming. If too many trees are
chopped down without new ones being
planted, this leaves bare soil with no
tree roots to hold the soil in place.
Overgrazing
The main cause of desertification
is overgrazing. Too many animals
grazing and trampling on plants
can lead to soils becoming bare.
The wind then blows or the rain
washes the bare soil away.
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Only a few types
of plants can grow
in desertified land.
Loose soil can
be washed or
blown away.
Wood is used
to make paper.
Dry land has few plants,
which many animals
need to feed on.
050-051_Desertification.indd 50 31/10/2019 14:05