Researchers on Monday unveiled the world's largest forest database, comprising more than 44 million individual trees at more than 100,000 sites in 90 countries - helping them to calculate that Earth boasts roughly 73,300 tree species.
FILE PHOTO: The sun rises behind Baobab trees at Baobab alley near the city of MorondavaWASHINGTON - From the monkey puzzle tree of Peru to the Tasmanian blue gum of Australia, from the baobabs of Madagascar to the giant sequoias of California, the world is blessed with an abundance of tree species. How many? A new study has the answer.
South America, home to the enormously biodiverse Amazon rainforest and farflung Andean forests, was found to harbor 43% of the planet's tree species and the largest number of rare species, at about 8,200. "Indeed, our society often considers forests as just pieces of wood and trees as natural resources, ignoring their fundamental role for humankind in providing ecosystem services that go behind the mere economic - even if important - timber, paper and pulp production. From trees and forests humanity gets inspiration, relaxation, spirituality and essentially the meaning of life," Gatti added.
This study did not tally the total number of individual trees globally, but 2015 research led by one of the co-authors put that figure at about 3 trillion.
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