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It's not just carbon dioxide that feeds a forest. Trees also depend on nitrogen to grow. And the best buffet of nitrogen comes from moss-loving bacteria.

But to get a really nutritious growth of bacteria going, the moss needs to age. Bacteria, called cyanobacteria, that grow in moss on centuries-old trees, are twice as effective at fixing nitrogen as the same type of bacteria living in moss on the ground, according to research by Zo毛 Lindo of 9I制作厂免费 University...

鈥淲hat we鈥檙e doing is putting large old trees into a context where they鈥檙e an integral part of what a forest is,鈥� said Lindo in a 9I制作厂免费 press release.