Deforestation of the Amazon Rainforest
The main sources of deforestation in the Amazon Rainforest are human settlement and development of the land.[1] In the nine years from 1991 to 2000, the total area of Amazon Rainforest cleared rose from 415,000 to 587,000 km²; a total area of more than six times that of Portugal, 64 percent larger than Germany, 55 percent larger than Japan, 21 percent larger than Sichuan or equal to 84 percent the area of Texas. Most of this lost forest has been replaced with pasture for cattle.[2] In February 2008, the Brazilian government announced that the rate at which the Amazon rainforest was being destroyed had been accelerating noticeably during the time of the year that it normally slows: In just the last five months of 2007, more than 3,200 sq. kilometers, an area equivalent to the state of Rhode Island, was deforested.[3] The Amazon rainforest continues to shrink but more recently the rate of deforestation has been slowing, with the 2011 figures showing the slowest rate of deforestation since records have been kept.[4]
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[edit] History
Prior to the 1970s, access to the forest's interior was highly restricted, and aside from partial clearing along rivers the forest remained basically intact.[5] Deforestation accelerated greatly following the opening of highways deep into the forest, such as the Trans-Amazonian highway in 1972.
In many parts of Amazon, the poor soil had made plantation-based agriculture unprofitable. The key turning point in deforestation of the Brazilian Amazon was when colonists began to establish farms within the forest during the 1960s. Their farming system was based on crop cultivation and the slash and burn method. However, the colonists were unable to successfully manage their fields and the crops due to the loss of soil fertility and weed invasion.[6] In indigenous areas of the Peruvian Amazon, such as the Urarina's Chambira River Basin,[7] the soils are productive for relatively short period of time, and indigenous horticulturalists like the Urarina are therefore constantly moving to new areas and clearing more and more land.[6] Amazonian colonization was ruled by cattle raising because ranching required little labor, generated decent profits, and awarded social status in the community. Additionally, grass can grow in the poor Amazon soil. However, the results of the farming led to extensive deforestation and caused extensive environmental damage.[8] An estimated 30% of the deforestation is due to small farmers and the intensity within the area that they inhabit is greater than the area occupied by the medium and large ranchers who possess 89% of the Legal Amazon’s private land. This emphasizes the importance of using previously cleared land for agricultural use, rather the typical easiest political path of distributing still-forested areas.[9] In the Brazilian Amazon, the amount of small farmers versus large landholders changes frequently with economic and demographic pressures.[9]
In 2008, Peruvian President Alan García pushed through by executive decree Law 840[10] (also known as "Ley de la Selva," "the Law of the Jungle" or simply the "Forest Law"), which allowed the sale of uncultivated Amazon land under state ownership to private companies, without term limits on the property rights.[11] While the law was promoted as a "reforestation" measure, critics claimed the privatization measure would in fact encourage further deforestation of the Amazon,[12] while surrendering the nation's rights over natural resources to foreign investors and leaving uncertain the fate of Peru's indigenous people, who do not typically hold formal title to the forestlands on which they subsist.[10][13] Law 840 met widespread resistance and was eventually repealed by Peru's legislature for being unconstitutional.[10]
[edit] Causes
The Amazon Rainforest is being cut away for many different reasons. Cattle Pasture, the valuable hardwood, housing space and farming space especially soybeans are just the main reasons.The annual rate of deforestation in the Amazon region has continued to increase from 1990 to 2003 because of factors at local, national, and international levels.[5] 70% of formerly forested land in the Amazon, and 91% of land deforested since 1970, is used for livestock pasture.[14][15] In addition, Brazil is currently the second-largest global producer of soybeans after the United States, mostly for export and biodiesel production,[16] and as prices for soybeans rise, the soy farmers are pushing northwards into forested areas of the Amazon. As stated in Brazilian legislation, clearing land for crops or fields is considered an ‘effective use’ of land and is the beginning towards land ownership.[5] Cleared property is also valued 5–10 times more than forested land and for that reason valuable to the owner whose ultimate objective is resale. The needs of soy farmers have been used to validate many of the controversial transportation projects that are currently developing in the Amazon.[5] The first two highways: the Belém-Brasília (1958) and the Cuiaba-Porto Velho (1968) were the only federal highways in the Legal Amazon to be paved and passable year-round before the late 1990s. These two highways are said to be “at the heart of the ‘arc of deforestation’”, which at present is the focal point area of deforestation in the Brazilian Amazon. The Belém-Brasília highway attracted nearly two million settlers in the first twenty years. The success of the Belém-Brasília highway in opening up the forest was reenacted as paved roads continued to be developed unleashing the irrepressible spread of settlement. The completions of the roads were followed by a wave of resettlement and the settlers had a significant effect on the forest.[17]
Scientists using NASA satellite data have found that clearing for mechanized cropland has recently become a significant force in Brazilian Amazon deforestation. This change in land use may alter the region's climate. Researchers found that in 2003, the then peak year of deforestation, more than 20 percent of the Mato Grosso state’s forests were converted to cropland. This finding suggests that the recent cropland expansion in the region is contributing to further deforestation. In 2005, soybean prices fell by more than 25 percent and some areas of Mato Grosso showed a decrease in large deforestation events, although the central agricultural zone continued to clear forests. However, deforestation rates could return to the high levels seen in 2003 as soybean and other crop prices begin to rebound in international markets. This new driver of forest loss suggests that the rise and fall of prices for other crops, beef, and timber may also have a significant impact on future land use in the region, according to the study. [2]
In 1996, the Amazon was reported to have shown a 34% increase in deforestation since 1992.[18] The mean annual deforestation rate from 2000 to 2005 (22,392 km² per year) was 18% higher than in the previous five years (19,018 km² per year).[19] In Brazil, the Instituto Nacional de Pesquisas Espaciais (INPE, or National Institute of Space Research) produces deforestation figures annually. Their deforestation estimates are derived from 100 to 220 images taken during the dry season in the Amazon by the Landsat satellite, also may only consider the loss of the Amazon rainforest biome – not the loss of natural fields or savannah within the rainforest. According to INPE, the original Amazon rainforest biome in Brazil of 4,100,000 km² was reduced to 3,403,000 km² by 2005 – representing a loss of 17.1%.[20]
| Period[21] | Estimated remaining forest cover in the Brazilian Amazon (km²) |
Annual forest loss (km²) |
Percent of 1970 cover remaining |
Total forest loss since 1970 (km²) |
|---|---|---|---|---|
| Pre–1970 | 4,100,000 | — | — | — |
| 1977 | 3,955,870 | 21,130 | 96.5% | 144,130 |
| 1978–1987 | 3,744,570 | 21,130 | 91.3% | 355,430 |
| 1988 | 3,723,520 | 21,050 | 90.8% | 376,480 |
| 1989 | 3,705,750 | 17,770 | 90.4% | 394,250 |
| 1990 | 3,692,020 | 13,730 | 90.0% | 407,980 |
| 1991 | 3,680,990 | 11,030 | 89.8% | 419,010 |
| 1992 | 3,667,204 | 13,786 | 89.4% | 432,796 |
| 1993 | 3,652,308 | 14,896 | 89.1% | 447,692 |
| 1994 | 3,637,412 | 14,896 | 88.7% | 462,588 |
| 1995 | 3,608,353 | 29,059 | 88.0% | 491,647 |
| 1996 | 3,590,192 | 18,161 | 87.6% | 509,808 |
| 1997 | 3,576,965 | 13,227 | 87.2% | 523,035 |
| 1998 | 3,559,582 | 17,383 | 86.8% | 540,418 |
| 1999 | 3,542,323 | 17,259 | 86.4% | 557,677 |
| 2000 | 3,524,097 | 18,226 | 86.0% | 575,903 |
| 2001 | 3,505,932 | 18,165 | 85.5% | 594,068 |
| 2002 | 3,484,538 | 21,394 | 85.0% | 615,462 |
| 2003 | 3,459,291 | 25,247 | 84.4% | 640,709 |
| 2004 | 3,431,868 | 27,423 | 83.7% | 668,132 |
| 2005 | 3,413,022 | 18,846 | 83.2% | 686,978 |
| 2006 | 3,398,913 | 14,109 | 82.9% | 701,087 |
| 2007 | 3,387,381 | 11,532 | 82.6% | 712,619 |
| 2008 | 3,375,413 | 11,968 | 82.3% | 724,587 |
| 2009[4] | 3,367,949 | 7,464 | 82.2% | 732,051 |
| 2010[4] | 3,360,949 | 7,000 | 82.0% | 739,051 |
| 2011[4] | 3,354,711 | 6,238 | 81.8% | 745,289 |
One of the most important causes of deforestation in the Amazon is the cultivation of agricultural commodities such as soya, which is used mainly to feed animals. McDonald's has denied feeding its chickens with soya from the Amazon rainforest supplied by agricultural giant Cargill; however, not only did evidences prove this to be true, but also pointed out the soya farmers were linked to the use of slave labors, illegal land grabbing and massive deforestation. It has been calculated that McDonald's and its suppliers are responsible for 70,000 km² of the Amazon's deforestation in the last three years. Greenpeace have demanded that fast food companies eliminate soya trade and any meat products that are associated with the Amazon rainforest.[22]
[edit] Deforestation and trade in illegal wood
The actual physical task of clearing very large trees in remote locations, often with poor or non-existing roads, is in itself a monumental task requiring considerable effort and expense. Brazilian Federal Police, Brazilian Army and IBAMA regularly seize heavy equipment used to clear land [3]. Also the main motivation for clearing forest is to open land for cattle breeding. Harvesting valuable hardwood is risky, for Brazilian legislation forbids transport and sale of harvested wood obtained without a licence,[4][5][6] - a long and onerous process to undertake[citation needed]. Brazil, - rich in hardwoods, has a lumber shortage and is forced to import dimensional lumber[citation needed], namely because on severe restrictions on trade in any native wood. Cleared of forest land, wood cannot be legally traded in, thus the ranchers simply burn it [7]. Illegally harvested wood is routinely seized by Brazilian Federal Police and IBAMA, thus taking away the motivating factor to harvest forest [8][9][10][11]. Most of the harvested wood is used locally for construction and fence posts[citation needed]. Recently Brazilian government also took steps to seize cattle bred on burnt-out tracts of forest, further reducing appeal of Rain Forest ranching [12][13]. Furthermore, Brazilian law prescribes stiff penalties for "environmental crimes", namely, illegal harvesting of wood is a non-bailable offence, levying huge fines, and with a mandatory minimal sentencing provisions [14][15].
[edit] Future
At 2007 rates, it was considered that in two decades the Amazon Rainforest would be reduced by 40%.[23] The rate of deforestation is now slowing, and in 2011 deforestation figures were the lowest on record.[4][24]
Norwegian prime minister Jens Stoltenberg announced on September 16, 2008, that the Norwegian Government would donate US$ 1 billion to the newly established Amazon fund. The money from this fund will go to projects aimed at slowing down the deforestation of the Amazon rainforest.[25]
[edit] See also
- Deforestation in Brazil
- Slash and burn agriculture
- Construction of the Trans-Amazonian Highway
- Logging
- Cattle ranching
- Belo Monte Dam
[edit] References
- ^ Various (2001). Bierregaard, Richard; Gascon, Claude; Lovejoy, Thomas E.; Mesquita, Rita. ed. Lessons from Amazonia: The Ecology and Conservation of a Fragmented Forest. Yale University Press. ISBN 0300084838.
- ^ Centre for International Forestry Research (CIFOR) (2004)
- ^ Staff (2008-02-07). "Amazon Deforestation Rate Escalates". The Real Truth. http://www.realtruth.org/news/080207-001-weather.html. Retrieved 2008-08-19.
- ^ a b c d e INPE figures August to July.
- ^ a b c d Kirby, Kathryn R.; Laurance, William F.; Albernaz, Ana K.; Schroth, Götz; Fearnside, Philip M.; Bergen, Scott; M. Venticinque, Eduardo; Costa, Carlos da (2006). "The future of deforestation in the Brazilian Amazon". Futures 38 (4): 432–453. doi:10.1016/j.futures.2005.07.011.
- ^ a b Watkins and Griffiths, J. (2000). Forest Destruction and Sustainable Agriculture in the Brazilian Amazon: a Literature Review (Doctoral dissertation, The University of Reading, 2000). Dissertation Abstracts International, 15-17
- ^ Dean, Bartholomew 2009 Urarina Society, Cosmology, and History in Peruvian Amazonia, Gainesville: University Press of Florida ISBN 978-081303378 [1]
- ^ Williams, M. (2006). Deforesting the Earth: From Prehistory to Global Crisis (Abridged ed.). Chicago, IL: The University of Chicago Press. ISBN 0226899470.
- ^ a b Fernside, P. M. (2005). Deforestation in Brazilian Amazonia: History, Rates, and Consequences. Conservation Biology, 19, 680-688.
- ^ a b c Polk, James. "Time to Strengthen Ties with Peru". Foreign Policy In Focus. April 14, 2009.
- ^ Vittor, Luis. ["The law of the jungle, to sell the Amazon basin"]. Agencia Latinoamericana de información. January 30, 2008.
- ^ "Peru: Government intent on privatizing the Amazon for implementing tree plantations". World Rainforest Movement, Bulletin 129. April 2008.
- ^ Salazar, Milagros. "ENVIRONMENT-PERU: 'For Sale' Signs in Amazon Jungle". Inter Press Service. February 5, 2008.
- ^ Steinfeld, Henning; Gerber, Pierre; Wassenaar, T. D.; Castel, Vincent (2006). Livestock's Long Shadow: Environmental Issues and Options. Food and Agriculture Organization of the United Nations. ISBN 9251055718. http://www.fao.org/docrep/010/a0701e/a0701e00.htm. Retrieved 2008-08-19.
- ^ Margulis, Sergio (2004). Causes of Deforestation of the Brazilian Amazon. Washington D.C.: The World Bank. ISBN 0821356917. http://www-wds.worldbank.org/servlet/WDSContentServer/WDSP/IB/2004/02/02/000090341_20040202130625/Rendered/PDF/277150PAPER0wbwp0no1022.pdf. Retrieved 2008-09-04.
- ^ "U.S. ethanol may drive Amazon deforestation". mongabay.com. May 17, 2007. http://news.mongabay.com/2007/0516-ethanol_amazon.html. Retrieved October 29, 2009.
- ^ Williams, M. (2006). Deforesting the Earth: From Prehistory to Global Crisis. Chicago, IL: The University of Chicago Press.
- ^ Beef exports fuel loss of Amazonian Forest. CIFOR News Online, Number 36
- ^ Barreto, P.; Souza Jr. C.; Noguerón, R.; Anderson, A. & Salomão, R. 2006. Human Pressure on the Brazilian Amazon Forests. Imazon. Retrieved September 28, 2006. (The Imazon web site contains many resources relating to the Brazilian Amazonia.)
- ^ National Institute for Space Research (INPE) (2005). The INPE deforestation figures for Brazil were cited on the WWF Website in April 2006.
- ^ From article by Rhett A. Butler, which is taken from INPE and FAO figures. Retrieved January 18, 2010.
- ^ Greenpeace. 2006. We're trashin' it: how McDonald's is eating up the Amazon. Amsterdam: Greenpeace
- ^ Scott Wallace, 2007, Last of the Amazon, National Geographic magazine, 2007 issue, pp. 40-71, January 2007.
- ^ BBC, 2nd Jan 2012
- ^ "NOK 5.8 billion to the Amazon fund". [The Norwegian Mail]. September 17, 2008.
Camill, Phil. "The Deforestation of the Amazon: ." (1999): 1. Web. 31 May 2011. <http://ublib.buffalo.edu/libraries/projects/cases/amazon.html>. "Amazon Deforestation Trend On The Increase." ScienceDaily LLC (2009): 1. Web. 31 May 2011. <http://www.sciencedaily.com/releases/2009/01/090104093542.htm>. Butler, Rhett . "Deforestation in the Amazon." (1994): 1. Web. 31 May 2011. <http://www.mongabay.com/brazil.html>.
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