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The
forest disappears
According
to figures from FAO (Food and Agriculture Organization) in 1996,
some 27 per cent of the earths surface was covered with forest.
8000 years ago there were 8.08 billion hectares (19.96 billion acres)
of forest worldwide. Today only 3.04 billion hectares (7.51 billion
acres) remain. Europe has lost around 62 per cent of its original
woodland, while the Asian-Pacific region has lost as much as 88
per cent. In its most recent studies, the World Wildlife-Foundation
WWF refers to dramatic increase in forest destruction over the last
five years. According to one study, during this period 17 million
hectares (42 million acres) of primeval forest were destroyed or
replaced by species-poor timber plantations. The FAO gives a figure
of 11.3 million hectares (28 million acres) of forest destroyed
from 1990 to 1995, although this figure refers to net loss. There
is a significant difference between the two studies: the WWF study
also takes into account the loss of biological diversity. For this
reason, in 1997 the WWF proposed the establishment of a worldwide
forest network to protect biological diversity: primeval forests
should have absolute protection from human interference.
In
the Amazonian rainforest a tree falls every few seconds. At this
rate what was once the worlds largest area of primeval forest
will have disappeared entirely in fifty years time. The same
is also true of forests in other countries such as Costa Rica, Malaysia,
Pakistan and Thailand. In percentages terms, looking at the period
1990-1995, the loss of existing forest area was largest in the Lebanon
(7.8 per cent), followed by Afghanistan (6.8 per cent), the Philippines
(3.5 per cent), Costa Rica ( 3.3 per cent), Pakistan (2.9 per cent)
and Thailand (2.6 per cent). In absolute terms the losses were largest
in Brazil (2.55 million hectares / 6.30 million acres lost per year),
followed by Indonesia (1.08 million hectares / 2.66 million acres
lost per year), Zaire (740,000 hectares / 1,828,577 acres lost per
year) and Bolivia (581,000 hectares / 1,435,680 acres lost per year).
Even
the few primeval forests which still survive in the northern hemisphere
are becoming smaller by the year. For this reason, the forests in
the growth economies of Eastern Europe and Asia the industrial
nations of the future are especially important. Among them,
attention is focused on Russia, which has the worlds largest
coverage of forest land (around one fifth of the worlds total
forest area). The future of these forests, which are mainly located
in remote areas, has become increasingly uncertain since the fall
of the Iron Curtain, as financially powerful timber companies from
the West seek to purchase the cutting rights for relatively small
sums.
Efforts
made in China have shown how difficult it is to re-afforest areas
once they have been deforested. Each year millions of trees are
planted here, representing a huge financial investment. However,
even after thirty to forty years, these new forests are not able
to develop further without human intervention. Even the second generation
of trees has to be planted by hand. Despite this enormous effort
to counteract desert formation and to protect agricultural land,
China is still heavily reliant on imports, especially because of
its high consumption of firewood.
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