Scientists have found that photosynthesis and the conversion of carbon dioxide into biomass are more intense in old trees than in young stands.
The discovery was made by Nathan Stevenson and his colleagues at the Western Ecology Research Center in Three Rivers, USA. The team of scientists observed the rate of gas exchange in 403 specimens from regions with temperate and tropical climates and compared the rate of biomass growth of 673 thousand trees growing in different regions of the world. The results showed that long-lived trees on average absorbed carbon dioxide 3 times more intensively than their younger counterparts.
This refutes the hypothesis put forward in 2013 by American climatologists that European forests are doing poorly precisely because of the high percentage of old trees, and also proves the need to protect them and support national park programs. According to scientists, this will help mankind to keep the climate stable.