There isn't a single tree species that produces the most oxygen definitively. However, some tree species are known to produce a significant amount of oxygen. Douglas fir, beech, spruce, and maple trees are among the tree species that produce the most oxygen. The amount of oxygen a tree produces depends on various factors like its size, age, health, and the environment it grows in.
The amount of oxygen a tree produces is directly related to its leaf area index (LAI). The LAI refers to the total area of leaves per unit of ground area. Trees with a higher LAI have more leaves and therefore can produce more oxygen.
It's important to remember that while trees are essential for oxygen production, the ocean produces roughly half of the oxygen on Earth. This is primarily due to the vast abundance of phytoplankton in the ocean.
