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News Release 04-117
Research Uncovers Added Value of Streamside Forests
Studies demonstrate that trees keep pollutants out of streams, help process pollutants in them
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Deforested reaches of 16 small Piedmont streams such as Birch Run in Pennsylvania (upper photo) are shown to have much narrower channels than forested reaches located immediately upstream or downstream (lower photo).
The channel narrowing results in less stream habitat and ecosystem per unit length of stream and compromises in-stream ecosystem services such as the processing of pollutants.
Credit: David H. Funk
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