Tropical Savanna Brazil
Tuesday, November 27, 2012
A Little History
The
tropical Savanna of Brazil is the second largest Biome in South America and
represents 23 percent of the country. Another word for this Biome is Cerrado,
which came from the Portuguese language meaning dense, closed. The first
detailed account of the Brazilian Cerrados was discovered by a Danish botanist
named Eugene Warming in 1892. There is little fossil evidence of the geological
history but they are suggestions that it existed in the prototypic form in the Cretaceous,
which is before the final separation of South American and Africa Continents. The climate is like your typical savanna
it receives 50 to 100cm of rainfall. The arrangement of its great age and dynamic
phase in distribution is most likely cause of this rich biodiversity. Seasonal
fires also play a vital role in the savannas biodiversity. The tropical Savanna
in Brazil is home to 160,00 species including plants animals and fungi. This
biome also contains an abundance of forests and rich soil. Although Unlike the
African Savannas, Brazil has lost the fauna of large mammals, but now the
reintroduction of grazers; the cattle and horses take the place of those faunas
and restored the balance of vegetation. In the past Brazilian country people
populated the Cerrado. Native vegetation provided resources for houses,
seasonal fruits, fiber, firewood and other products. But now recently it hs
become connected to modern Brazilian life due to railroads and roads.
Current Human Impacts
Human Impacts for this biome include agriculture and
grazing by cattle. During the last 25 years modern agriculture had developed.
Some of the Products include soya (Brazil accounts for a about a third of the
world soyabean exports) maize, rice, beans and sugar. Coffee produced in the
Cerrado is also important export. There is a huge number of cattle that are
raised in planted pastures. Two of the farms in Brazil are the frontier of
Brazilian Farming. Brazil has turned itself from a food importer to one of the
world’s great breadbaskets. It is the first tropical food giants. Between 1996
and 2006 the total value of the countries crop rose from 23 billion to 108
billion. Also today this region contributes more then three quarters of the
beef cattle production in the country. It overtook Australia’s in beef exports
and considered the world’s largest exporter. It also has the worlds largest
cattle herd after India’s. Charcoal production for Brazilian steel industries
cause great destruction of this biome. Tree trunks and roots are often used in
the production of charcoal.
Future Prospects
I think
the likely future after researching on the current human impacts is that
Brazils Cerrado is going to grow as a big agriculture industry. But the fires
caused by humans in this biome will destroy the savanna. It has been reported
from the Conservation International Researchers that around 1.5 percent of the
region of grasslands are cleared each year by fires. So that’s a big danger. So
I hope the Brazilian government is aware of that and should try to find a way
to limit the number of fires happening in this biome. Also the Brazilian steel
industry gives the smokey look to the savanna and gives reasons why people do
not care about savanna. This might be a problem in the future because when
something looks ugly to people, they will tend to not care for it, which
creates a bigger problem.
Improving Human Impacts
To
maintain positive, I think they should keep the agriculture up and keep
farming. Clearly food is important and natural resources are needed so continuing
increasing the crop value is the way to go. Also to really look after this
biome, watching the fires and keeping the savanna a savanna should be important
and to maintain positive human impacts on this ecosystem.
References
http://aob.oxfordjournals.org/content/80/3/223.full.pdf
http://www.economist.com/node/16886442
http://link.springer.com/article/10.1007%2Fs10661-009-0988-4?LI=true
http://blogs.scientificamerican.com/compound-eye/2012/06/13/ant-science-in-brazil-a-photo-essay/
http://www.ehow.com/info_7843983_endangered-species-savanna-biome.html
https://php.radford.edu/~swoodwar/biomes/?page_id=105
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