Acid rain stops sugar maples sprouting

Acid rain is harming sugar maple forests and preventing new growth, according to research from the University of Michigan.

Sugar maples grow in calcium-rich soil, which was thought to buffer trees against soil acidification. New research indicates that excess nitrogen from acid rain slows down the decay of dead leaves on the forest floor. This creates a physical barrier for seedling roots seeking nutrients and leaves from reaching sunlight.

Read more at University of Michigan

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