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The Amazon basin contains about 17% of terrestrial vegetation and as such is a significant and important factor in the global carbon cycle. A team of scientists who examined the results of the drought at more than 100 sites, discovered that the droughts caused the cancellation of the most important role of the forests - the absorption of carbon dioxide from the atmosphere

 

The global carbon balance. Illustration: shutterstock
The global carbon balance. Illustration: shutterstock

Participants, organizers and spectators of the Olympics in Brazil are aware of many dangers such as: Zika, terrorism, violence and other hazards. They are not aware of the environmental hazard that results from drought.

The vast forest in the Amazon basin is "responsible" for a fifth of the absorption of carbon dioxide by vegetation in the world, but according to:Global Biogeochemical Cycles journal, the Amazon basin has suffered from periods of drought that cause damage. A study that examined the results of the drought in 2005 and 2010 showed that the drought caused the death of hundreds of thousands of trees and a significant slowdown in the development of young trees. This caused a significant decrease in the ability of the Amazon forest to absorb carbon dioxide from the atmosphere...the decrease is so sharp that the researchers write "the drought will increase the absorption of carbon dioxide".

 

The Amazon basin contains about 17% of terrestrial vegetation and as such is a significant and important factor in the global carbon cycle. A team of scientists who examined the results of the drought. In more than 100 sites, describe the findings as "extremely important".

 

 

One of the researchers describes how the drought stopped the absorption of carbon dioxide by the Amazonian forest: "The test showed that the forest became neutral since the amount of carbon that evaporated was equal to the amount of carbon that was absorbed even in the immediate period after the dry periods." After the drought in 2010, it turned out that tree species that are known to absorb carbon stopped growing. Many of the trees have died and the growth of many trees has slowed. It turns out that the drought in 2005 did not have such a severe result, and therefore the researchers say that "the effect of dry periods is complicated and dynamic". in the future."

 

 

After all this it turns out that the forests are strong and durable and between periods of drought they come back and absorb carbon in impressive quantities, which shows that the forests have the capacity to continue their environmental function in absorbing carbon even after a drought, "therefore it is necessary to ensure the continued protection of the forests so that they continue to serve the environment".

 

 

2 תגובות

  1. It seems to me that a considerable proportion of the animal species is also found in the Amazon from Pyrenean fish and river dolphins, and capybara, caiman - alligator, jaguar, sloth, termites, fire ants, and more.

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