About the Cover
Cover: This wetland, built in 1990, is called Berg and is one of the oldest constructed
wetlands for diffuse pollution treatment in Norway. Note the sedimentation pond in the inlet.
Farther down stream is a vegetation filter. The photo was taken in spring.
See Braskerud, "Can Constructed Wetlands Reduce the Diffuse Phosphorus Loads to Eutrophic
Water in Cold Temperate Regions?" p. 2145-2155
Image by B.C. Braskerud.
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Copyright © 2006 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.