Ancient trees absorb more CO2 than young trees

Researchers have published research results that show that older and larger trees absorb more carbon dioxide (CO ₂ ) than young, young trees.

This finding changes the traditional view that large old trees are almost ineffective in absorbing greenhouse gases.

The team of scientists from the American Institute of Geological Research, led by Nathan Stephenson, conducted a survey of 403 species of plants, using data of more than 670,000 trees across continents and found the plants themselves. Older and older have a fast growth rate and absorb the most carbon.

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Plants absorb carbon dioxide from the air and keep it in the form of carbon in the trunk, branches and leaves, thereby slowing global warming. This is also the reason why forests are considered as "carbon sinks". However, the impact of "carbon pools" on climate change is still a controversial topic.

According to Stephenson, although it is clear that old forests will retain more carbon than young forests, the problem lies in the fact that old-growth forests have all kinds of trees of all sizes and cannot determine which species. grows faster and absorbs the most CO2 from the air.

For plants, the term "big" and "small" is only relative, for example, a yew tree cannot be considered large without reaching a diameter of 300cm, while in other plants, a large tree only about 50cm in diameter.