Sunday, January 8, 2012

African rainforests continue to face challenges

Joe De Capua in Voice of America: The African continent contains about 30 percent of the world’s global rainforests, second only to the Amazon. Scientists and conservationists met at Oxford University to discuss changes the forests are expected to undergo in the 21st Century.

Africa’s tropical forests face challenges from deforestation, hunting, logging and mining, as well as climate change.

“Climate change is a major issue for much of the world, but for Africa, in particular. And there’s much interest and concern around Africa’s forests, which is the second largest area of tropical forest in the world after the Amazon forest. And yet there’s been very little synthesis of the research that’s there. There’s much less known about both climate and forest and people and there interaction in Africa compared to many other regions of the world,” said Yadvinder Malhi is a professor of ecosystems science at Oxford University and director of Oxford’s Center for Tropical Forests.

He said the conference brought together experts in climate change, ecology, social sciences, economics, anthropology and archeology to discuss Africa’s rainforests. “They’re important at an international level for many reasons. They hold a large amount of carbon. They seem to be absorbing carbon from the atmosphere, which is slightly slowing down the rate of climate change. In the case of Africa, the recycling of water. So water that falls in the Congo region gets taken up in the roots of trees and evaporated back into the atmosphere where it forms clouds and new rain,” he said.

The clouds that form over the Congo Basin actually have long range effects on water supplies and weather patterns in parts of Asia and even North America.

There’s a big difference between the forests of the Congo Basin and West Africa. Malhi says there’s been extensive deforestation in West Africa. Much of the land has been cleared for agriculture over the last 20 to 30 years...

Satellite image from NASA of the Ubangi River in the Democratic Republic of the Congo

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