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Image Number D1235-10

Soil scientist Doug Karlen instructs technician Tanya Ferguson (accompanied by her hearing guide dog) on how to visually assess soil quality impacts of harvesting crop residue as feedstock for bioenergy production. The foreground shows signs of severe soil erosion where about 90 percent of the stover was harvested.


Photo by Stephen Ausmus.

640 pixels wide: (d1235-10.jpg)

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