The
consequences of Forest fires...
Techniques
are increasing and more and better material and personnel are being used to
master forest fires, but the situation itself has not really changed very much
throughout the ages. Forest fires have existed here since eternal times. The
vegetation suffers, but is never completely destroyed; it regenerates again in
about two years. The native flora has become accustomed to the fires and reacts
appropriately. Pine trees and aromatic plants such as thyme and rosemary, and
heather and brooms thrive here naturally.
All these plants have strong roots and few leaves and two additional
common characteristics: They regenerate fast and are, unfortunately, also very
flammable. It would be much better to plant other trees, for example cork oaks,
olives or almond trees, as were common when there was more agriculture in our
area. The leaves of these trees are juicier and do not burn as easily. More
fire-resistant trees would not prevent all forest fires but would reduce their
number and the area burned.
These trees also cost more than pine trees, and grow slowly.
Thus the government must decide if they wish to invest funds now for the
future, or spend less, now, and wait and spend money on fire- fighting and
restoration.
The
danger continues after the fire:
the ground, without plants to stabilize it is susceptible to being washed
away by rainwater, especially on steeply sloped areas. Fortunately, the remained
underground roots help to keep the soil stable, even after a big fire; even
dead roots are still able to retain some of the earth. But, the best protection
against soil erosion is thick healthy vegetation.
In a certain sense, however, just only in this sense, forest fires are
useful for the quality of the earth. After a fire the introduction of burned
wood adds numerous mineral materials to the soil.
A
fire also dramatically impacts the lives of animals. Insects are the first to
lose their lives to heat and smoke. Also eggs, which were laid in trees, etc.
are destroyed. Birds can save themselves and most other animals have a threat
warning system and are usually able to migrate away from the danger to a safe
area. They search for another living space and may decide to return to the danger
area when there are appropriate conditions for their well-being. That may take
many years. Pines need about 5 years to reach a size that can provide protection
for the creatures.
A fire can, however, be so rapid and spread over such s big areas that
animals are encircled and die.
Trees
sweat as people and introduce moisture to the air when it is hot. If the trees
are missing after a fire, the climate becomes drier and this, in turn is conducive
for other fires. The forest fires of our area are, however, usually localized
events. If two mountain ridges burn, this does not change the climate of an
area. So the forest fires have hardly perceptible influence onto the climate
of our area.
CapCreus online, newspaper of the Costa Brava: www.cbrava.com