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Catarina Hipólito
 Tavares de Carvalho




Destruction of
    trees
population in
  Sever do
   Vouga
Main Species of Trees in Sever


 Until some years ago, Sever was known by
  its diversity of tree species. We had oaks,
  pines, orange trees, chestnut trees, olive
              trees and a lot more.
Portuguese Pine




                  Oak
Orange Tree




              Chestnut tree
olive tree
Nowadays, this diversity of tree species has beginning to
get lost. There are many reasons why these trees started
 disappearing, but I will only name and talk about two:
             Invasive species and forest fires.
Invasive Species

There are two main invasive species in Sever
 do Vouga, the eucalyptus and the acacia
                   tree.
Eucalyptus
The eucalyptus was introduced in Sever do
Vouga around 500 years ago. Its mainly
used as wood for making paper and as
wood for fireplaces. Since they don’t need
to be planted again once they’re cut (they
grow again) they turned into very popular
trees to be planted in Sever as they are very
lucrative.
They are considered invasive species
because they absorb most of the soil water
leading to the other trees’ death and
desertification.




       eucalyptus
Acacia Tree
No one really knows how the Acacia tree
ended up in Sever do Vouga.
It is probably the most invasive species in
Portugal, and Sever is not safe from this
plague.
They need a lot of water, so they absorb all
the water they are able to, causing the
other trees’ death.
Some studies are being conducted by
Portuguese and German scientists in order
to prevent this plague from spreading more.




                                     yellow acacia
The Forest Fires
In Sever do Vouga, fires are mainly caused
by the high temperatures in the summer
and the by the people’s carelessness.

They are, alongside with the invasive tree
species, the main cause for the decay of
Sever’s flora.
The population’s role in the
preservation of this trees
species

Since Sever has always been known by its
fauna and flora, the population started to
be conscious about the problem of the
decay of trees in our county.
Alongside the county hall, Severenses have
started to plant trees, make other people
aware of the problem and help to preserve
our autochthonous tree species as the
pines, the oats, the olive trees, the chestnut
trees, among others…
The End

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Destruction of Trees Population in Sever do Vouga

  • 1. Catarina Hipólito Tavares de Carvalho Destruction of trees population in Sever do Vouga
  • 2. Main Species of Trees in Sever Until some years ago, Sever was known by its diversity of tree species. We had oaks, pines, orange trees, chestnut trees, olive trees and a lot more.
  • 4. Orange Tree Chestnut tree
  • 6. Nowadays, this diversity of tree species has beginning to get lost. There are many reasons why these trees started disappearing, but I will only name and talk about two: Invasive species and forest fires.
  • 7. Invasive Species There are two main invasive species in Sever do Vouga, the eucalyptus and the acacia tree.
  • 8. Eucalyptus The eucalyptus was introduced in Sever do Vouga around 500 years ago. Its mainly used as wood for making paper and as wood for fireplaces. Since they don’t need to be planted again once they’re cut (they grow again) they turned into very popular trees to be planted in Sever as they are very lucrative.
  • 9. They are considered invasive species because they absorb most of the soil water leading to the other trees’ death and desertification. eucalyptus
  • 10. Acacia Tree No one really knows how the Acacia tree ended up in Sever do Vouga. It is probably the most invasive species in Portugal, and Sever is not safe from this plague. They need a lot of water, so they absorb all the water they are able to, causing the other trees’ death.
  • 11. Some studies are being conducted by Portuguese and German scientists in order to prevent this plague from spreading more. yellow acacia
  • 12. The Forest Fires In Sever do Vouga, fires are mainly caused by the high temperatures in the summer and the by the people’s carelessness. They are, alongside with the invasive tree species, the main cause for the decay of Sever’s flora.
  • 13. The population’s role in the preservation of this trees species Since Sever has always been known by its fauna and flora, the population started to be conscious about the problem of the decay of trees in our county.
  • 14. Alongside the county hall, Severenses have started to plant trees, make other people aware of the problem and help to preserve our autochthonous tree species as the pines, the oats, the olive trees, the chestnut trees, among others…