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World deforestation decreases, but remains alarming in many countries

Geschreven op 15-4-2010 - Erik van Erne. Geplaatst in Klimaat Facebooktwitterredditpinterestlinkedintumblrmail

Global Forest Resources Assessment 2010World deforestation, mainly the conversion of tropical forests to agricultural land, has decreased over the past ten years but continues at an alarmingly high rate in many countries, FAO announced today.

Globally, around 13 million hectares of forests were converted to other uses or lost through natural causes each year between 2000 and 2010 as compared to around 16 million hectares per year during the 1990s, according to key findings of FAO’s most comprehensive forest review to date The Global Forest Resources Assessment 2010. The study covers 233 countries and areas.

Brazil and Indonesia, which had the highest loss of forests in the 1990s, have significantly reduced their deforestation rates. In addition, ambitious tree planting programmes in countries such as China, India, the United States and Viet Nam – combined with natural expansion of forests in some regions – have added more than seven million hectares of new forests annually. As a result the net loss of forest area was reduced to 5.2 million hectares per year between 2000 and 2010, down from 8.3 million hectares annually in the 1990s. See: UNEP: The billion tree campaign

 

The world’s total forest area is just over four billion hectares or 31 percent of the total land area. The net annual loss of forests (when the sum of all gains in forest area is smaller than all losses) in 2000-2010 is equivalent to an area about the size of Costa Rica.  See video: UNEP – Amazon Deforestation in Google Earth

South America and Africa had the highest net annual loss of forests in 2000-2010, with four and 3.4 million hectares respectively. Oceania also registered a net loss, due partly to severe drought in Australia since 2000. 

Asia, on the other hand, registered a net gain of some 2.2 million hectares annually in the last decade, mainly because of large-scale afforestation programmes in China, India and Viet Nam, which have expanded their forest area by a total of close to four million hectares annually in the last five years. However, conversion of forested lands to other uses continued at high rates in many countries.  

In North and Central America, the forest area remained fairly stable, while in Europe it continued to expand, although at a slower rate than previously.

“For the first time, we are able to show that the rate of deforestation has decreased globally as a result of concerted efforts taken both at local and international level,” said Eduardo Rojas, Assistant Director-General of FAO’s Forestry Department.

“Not only have countries improved their forest policies and legislation, they have also allocated forests for use by local communities and indigenous peoples and for the conservation of biological diversity and other environmental functions. This is a very welcoming message in 2010 – the International Year of Biodiversity. See video: Madagascar: Forging a New Economic Path Through REDD Projects

“However, the rate of deforestation is still very high in many countries and the area of primary forest – forests undisturbed by human activity – continues to decrease, so countries must further strengthen their efforts to better conserve and manage them”, he added.

extent-of-deforestation-in-borneo-1950-2005-and-projection-towards-2020Forests play an important part in climate change mitigation. Forests store a vast amount of carbon. When a forest is cut down and converted to another use, carbon is released back into the atmosphere.

“A lower deforestation rate and the establishment of new forests have helped bring down the high level of carbon emissions from forests caused by deforestation and forest degradation”, said Mette Løyche Wilkie, the Coordinator of the Assessment.

Picture: Deforestation in Borneo 1950-2005

“But we need to look forward because the large tree planting programmes in China, India and Viet Nam, accounting for most of the recent gains in forest area, are scheduled to end by 2020,” she added. “That means we have a short window of opportunity to put in place effective and permanent measures to significantly reduce the current rates of deforestation and forest degradation. Without such interventions we risk a sudden return to the high rates of net forest loss and of carbon emissions from forests, which we had in the 1990s,” she said. Source: FAO

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