In the Hubbard Brook Experimental Forest, researchers found a 90 percent reduction in nitrates leaving the watershed over a 5-year period. To what did they attribute the majority of this reduction?

Question

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The reduction in nitrates leaving the watershed was attributed to the recovery from past disturbances, specifically the regrowth of forests that had been clear-cut in the past. Forests are known to be effective at removing nitrogen from the soil, so as the forests recovered, they were able to uptake more of the nitrogen and prevent it from leaving the watershed.

In the Hubbard Brook Experimental Forest, Researchers Found a 90