Biotechnology,Environment
and
Restoration
of
Degraded
Lands -
Increased
human
activity
has
affected
the
different
ecosystems
in
a
variety
of
different
ways.
One
of
these
effects
has
led
to
degradation
of
habitats,
including
cultivated
land.
Land
areas
accounting
for
about
50
per
cent
in
the
world
are
arid
with
problems
of
salinity,
acidity
or
aluminium
toxicity.
An
area
of
400
million
hectares
suffer
with
salinity
alone.
Restoration
of
these
degraded
lands,
therefore,
is
a
major
concern
both
in
the
developing
and
developed
countries.
This
is
also
essential
due
to
rapid
urbanization
leading
to
decreasing
area
of
available
land
for
cultivation
in
rural
areas.
However,
the
available
conventional
methods
of
reconstruction
are
relatively
inefficient.
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