![[Forests and the Environment]](images/forestsa.gif)
![[Bushfires]](images/bushfire.gif)
![[Cartoon]](images/202.gif)
![[Cartoon]](images/204.gif)
Australia is a very hot and dry place. Fire will always be a threat
to human and animal lives and homes. But through careful forest
management, we can help to keep this threat as small as possible.
For thousands of years, the Aborigines helped to reduce the effect
of fire on their environment by lighting 'low temperature'
fires in forests to clear away dry grasses and fallen bark and
branches from the forest floor. This meant that if a fire did start
burning in the area, there would be less 'fuel' available to
feed it.
Today, foresters use methods such as 'prescribed burning' to keep
State forests healthy and protect them from uncontrolled
bushfires.
Eucalypt seeds sprout easily after
fire because:
- forest litter (old leaves and bark) that covers the soil has been
burnt away, allowing seeds to reach the soil and germinate (begin to
grow)
- fires scorch or burn the crowns of trees, allowing more sunlight
and rain to reach the soil.
Many eucalypts have a large swollen root called a lignotuber, which
contains a mass of buds. If the tree is burnt, new shoots quickly
grow, assuring the tree's survival.
Eucalypts produce seeds in woody fruits which insulate the seeds so
they can be released and germinate following the fire.
There are heaps of buds hidden underneath the bark of eucalypts
which sprout quickly after a fire has been through. These produce new
shoots (called epicormic shoots) which help the tree to survive, even
though it has lost its leaves.
Last modified: Thursday, 25-Nov-1999 11:55:13 CST