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Déconnecté(e) robin des bois
Grand sage


Messages 7857
Inscrit(e) le 23/03/2004
Lieu de résidence 44000 Nantes
Publié le 18/01/2017 @ 10:16
Re : [Cambodia Daily] Government Accuses NASA of Incitement Over Deforestation Data

sur ce lien

- je pense que c'est le "fameux article" en question :
NASA releases images of dramatic deforestation in Cambodia

13 January 2017 / Morgan Erickson-Davis
The satellite images highlight the country’s rapid loss of forest – one of the fastest in the world.

• Cambodia lost around 1.59 million hectares of tree cover between 2001 and 2014, and just 3 percent remains covered in primary forest.
• This deforestation has led to the decline of wildlife habitat and the disappearance of tigers from the country – as well as the release of millions of tons of CO2.
• The NASA imagery shows the rapid development of rubber plantations over the past decade.
• Research attributes the jump in Cambodian deforestation rates primarily to changes in the global rubber price and an increase in concession deals between the government and plantation and timber companies.

Cambodia has one of the world’s highest rates of deforestation, losing a Connecticut-size area of tree cover in just 14 years.
This week, NASA released before-and-after satellite images of plantation expansion in central Cambodia that provide a dramatic example of the Southeast Asian country’s fast-paced land cover changes.

Ringed by Thailand, Laos, and Vietnam, Cambodia was once covered in lush rainforests.
In them lived now-Endangered animals like Indochinese tigers (Panthera tigris corbetti), wild cattle called banteng (Bos javanicus), and two species of colorful monkeys called doucs, as well as many other kinds of plants and animals.
However, forest conversion for agriculture and other purposes has reduced wildlife habitat significantly, and tigers are now regarded as functionally extinct in Cambodia.
According to the UN’s Food and Agriculture Organization (FAO), just 3 percent of Cambodia’s forests were primary as of 2015.
And data from the University of Maryland (UMD) visualized on the forest monitoring platform Global Forest Watch shows tree cover loss skyrocketed over the past decade, from around 28,500 hectares lost in 2001 to nearly 238,000 hectares lost in 2010.
In total, the data indicate Cambodia lost around 1.59 million hectares from 2001 through [/img]2014 – an area a little larger than the U.S. state of Connecticut, including 38 percent of its intact forest landscapes.
Only one intact forest landscape (IFL) remains in the country; IFLs are areas of original land cover that are large and undisturbed enough to retain all their native biodiversity.

NASA Earth Observatory images by Joshua Stevens, using Landsat data from the U.S. Geological Survey and Global Forest WatchNASA Earth Observatory images by Joshua Stevens, using Landsat data from the U.S. Geological Survey and Global Forest Watch


Cambodia’s deforestation isn’t just a problem for the wildlife and human communities that depend on the country’s forests; it’s also contributing to global warming by releasing massive amounts of CO2.
Data from Global Forest Watch Climate show the country’s 1.59 million hectares of tree cover loss over a 14-year period resulted in around 533 million metric tons of carbon emissions.
In comparison, the total 2011 CO2 emissions from Canada’s energy consumption – ranked ninth globally – was around 552.5 million metric tons, according to science advocacy NGO Union of Concerned Scientists and based on data from the Energy Information Agency.

Data from Global Forest Watch Climate show Cambodia’s 2001-2014 tree cover loss resulted in the release of around 552.5 million metric tons of CO2.

In the write-up about its images, NASA points to research that indicates increasing global rubber prices and land concession deals are largely to blame for Cambodia’s deforestation surge.
These concessions are allotments of land leased by the government to timber and agriculture companies.
Indeed, NASA’s images show a burgeoning rubber plantation appearing from what appears to have once been dense forest.
Additional imagery from Google Earth’s Timelapse satellite imagery viewer corroborated by UMD tree cover loss data indicate plantation construction began ramping up in 2009, with at least 19,000 hectares of tree cover cleared from the area’s rubber concessions by 2014.

Cambodia lost around 1.59 million hectares of tree cover between 2001 and 2014 – much of it for plantation agriculture like the rubber plantations.
Only one small area of intact forest landscape remains in the country, but half of it was degraded between 2000 and 2013.
The area circled in the inset shows the area highlighted by NASA’s imagery.

Image captured in 2000, before plantation development began. NASA Earth Observatory images by Joshua Stevens, using Landsat data from the U.S. Geological Survey and Global Forest Watch

Image captured in 2013. NASA Earth Observatory images by Joshua Stevens, using Landsat data from the U.S. Geological Survey and Global Forest Watch

Satellite imagery from Google Earth show rubber plantations and associated deforestation ramping up over the past six years.

In addition to government-sanctioned timber harvesting, Cambodia also has a problem with illegal logging, with research finding around 90 percent of the country’s timber production is illegally procured.
Cambodia has made some gains recently, with the government granting official protection to large swaths of threatened forest in 2016, as well as declaring a new national park – into which conservation organizations are thinking about reintroducing tigers.
While some conservationists are questioning the government’s ability to provide adequate resources to these new protected areas, they still regard the moves as a step in the right direction.
Formal recognition of the areas is good for conservation, even if we do not have the resources that are required to totally protect them,” Ross Sinclair, country director for the Wildlife Conservation Society, said in a previous interview with Mongabay.
For example, it is harder for land grabs to occur when a site is legally protected, and the new status also allows patrols to occur that are an integral part of protecting the sites.”

• Banner image: Red-shanked douc (Pygathrix nemaeus) by Pat Murray via Wikimedia Commons (2.0)
• Greenpeace, University of Maryland, World Resources Institute and Transparent World. “Intact Forest Landscapes. 2000/2013” Accessed through Global Forest Watch on January 12, 2017. www.globalforestwatch.org
• Potapov, P., Hansen, M. C., Laestadius, L., Turubanova, S., Yaroshenko, A., Thies, C., … Esipova, E. (2017). The last frontiers of wilderness: Tracking loss of intact forest landscapes from 2000 to 2013. Science Advances, 3(1), e1600821.
• Hansen, M. C., P. V. Potapov, R. Moore, M. Hancher, S. A. Turubanova, A. Tyukavina, D. Thau, S. V. Stehman, S. J. Goetz, T. R. Loveland, A. Kommareddy, A. Egorov, L. Chini, C. O. Justice, and J. R. G. Townshend. 2013. “High-Resolution Global Maps of 21st-Century Forest Cover Change.” Science 342 (15 November): 850–53. Data available on-line from:http://earthenginepartners.appspot.com/science-2013-global-forest. Accessed through Global Forest Watch on [date]. www.globalforestwatch.org
• Transparent World. “Tree Plantations.” 2015. Accessed through Global Forest Watch on January 12, 2017. www.globalforestwatch.org
• Zarin, D., Harris, N.L. et al. 2015. Can carbon emissions drop by 50% in five years? Global Change Biology, in press

Edité le 18/01/2017 @ 10:37 par robin des bois
Déconnecté(e) robin des bois
Grand sage


Messages 7857
Inscrit(e) le 23/03/2004
Lieu de résidence 44000 Nantes
Publié le 17/01/2017 @ 08:28
[Cambodia Daily] Government Accuses NASA of Incitement Over Deforestation Data

* Vu sur le "Chat" de K-N cette phrase de "petiteheidi" :
[ 11/01 @ 18:21]petiteheidi
Sale temps pour les forets Cambodgiennes ( Nasa )...Bof ! Ils couperont jusqu"au dernier, comme sur l'île de Pâques.
Quel ressenti aura t-il, celui qui l'abattra LE DERNIER ? ]

- sur ce lien du Cambodia Daily :


- cet article :
Government Accuses NASA of Incitement Over Deforestation Data

by Aun Pheap | January 16, 2017

The Environment Ministry has accused the U.S.’s space agency and local media outlets of “incitement” for publishing and misreporting year-old deforestation data that show years of rapid forest loss.
In 2015, the University of Maryland used U.S. satellite data to reveal that between 2001 and 2014 the annual forest loss rate in Cambodia accelerated by 14.4 percent, leading to one of the highest deforestation rates in the world since the turn of the century.

A map of deforestation in Cambodia between 2000 and 2013. The red areas show forest lost in 2013, the yellow areas show forest lost in 2000, and the orange areas show forest lost between the two years. (University of Maryland)

Under the headline “Cambodia’s Forests are Disappearing,” the university’s findings were republished last week by the Earth Observatory, a website dedicated to promoting environmental data gathered by the U.S.’s National Aeronautics and Space Administration (NASA).
Several local media outlets picked up on the Earth Observatory report with their own stories.
On Friday, the Environment Ministry released a statement accusing both NASA and unnamed outlets of deliberately trying to sully the government’s image.
“The publication of old data by the NASA Earth Observatory and its repetition by some media with wrong information shows an attempt at incitement and at confusing the public with the desire to criticize the government,” the ministry said.
It accused the local media outlets of conflating the increase in the annual rate of forest loss with the actual amount of forest that was lost each year.
The Environment Ministry wishes to state that the data of 14.4 percent shows the rate of the average annual increase of forest loss, not the rate of annual forest loss from 2001 to 2014,” the statement said.
The ministry noted 10 different steps it had taken since 2012 to reverse the trend, including a freeze on granting new leases for large-scale agribusiness projects, a task force set up to target forest crimes and a major reorganization of the environment and agriculture ministries.
Contacted on Sunday, Yeam Socheameta, an assignment editor for Radio Free Asia, denied any intentional misrepresentation of the report.
But he admitted that his reporter had misunderstood the data.
“We checked the report and found the wrong figure, but we corrected it after one day,” he said.
Despite some admitted shortcomings, the University of Maryland’s analysis of the satellite data has been lauded by many experts in the field as offering an unprecedented look at the scale of forest loss around the world.
According to its analysts, Cambodia’s deforestation rate peaked in 2010, though the country still managed to experience the fastest acceleration in forest loss in the world between 2001 and 2014 and one of the highest rates of forest loss overall.


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