Deforestation: Her Actions And Disadvantages

Deforestation is the phenomenon of regression surfaces covered with forest

. It follows the actions of deforestation and land clearing, related to the expansion of agricultural land, exploitation of mineral resources underground, urban, or even excessive or uncontrolled exploitation of certain tree species. Deforestation is not a recent phenomenon. From the Middle Ages to the beginning of the industrial revolution, clearing and cuts made to increase the farm and provide timber and heating pass on the territory of ancient Gaul, a forestation rate of 90 less than 15 only.

The current deforestation concerns mainly tropical forests. In 2005, she was described as alarming by the FAO .The destruction of the forest would be responsible from 18 to 20 emissions of greenhouse gas emissions. This is an important element that causes global warming.

Deforestation is old. She began by Williams at the end of prehistory, with a significant spatiotemporal correlation between forest loss and human population density in temperate areas, although fairly dense populations have also been able to live locally the forest without destroying it, in tropical (eg Native American, black populations of Africa and present-day Indonesia). A case history studied and publicized was that of Easter Island, whose exploitation by the islanders has led to the downfall of their culture and their people. A mathematical model found that their population would not exceed 2,000 people for them to survive on the island sustained without depleting the forest resource that was indispensable to them; palm.

Europe:Deforestation has accompanied the man almost everywhere he sedentary, agriculture still remains the main cause of deforestation followed closely by the need for firewood. It is old. The fires have been instrumental in clearing. Flint axes reconstructed from prehistory are very effective, but it is mostly the work of loggers and sawyers from the Middle Ages, and transportation techniques by floating timber that reduced the forest to feed the medieval forges fireplaces, stoves, coal and construction.

Deforestation conducted in Europe during the Middle Ages to expand agricultural land, pushed France to Julius Caesar, woody over 90 to less than 15 at the end of the nineteenth century. In 1850, the clearing wins the slopes to the summits of the uplands. Quickly the lowland forests of the temperate zones of Asia and Europe are deteriorating in poor coppice and separated by many miles.

Deforestation and reforestation in France:It is estimated that at the time of Vercingetorix, France was covered with forests to more than 90, or about 400,000 square kilometers. Today only 23 are enforestes. The afforestation rate increase for over a century, especially in uplands and mountains, but often less natural forests and ecologically fragmented.

In France, Colbert gave a cost of stopping deforestation and ordered the planting of forests for shipbuilding, but the wood needs have caused a sustained exploitation of the forest in the early 19th century as an ecosystem was almost totally destroyed. It took stringent regulatory measures (Forest Code of 1827, and reforestation of large Second Empire from 1825 to 1880 and a law on the restoration of mountain lands (1860) to change that (Chateaubriand) called a semblance of the desert.

The Americas:Before Europeans arrived in the United States, nearly half the surface of the United States was covered by primary forest.

by: Anna Kerry

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