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United States Department of Agriculture

Agricultural Research Service

ARS Photo Library

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Image Number K8641-19

Field lysimeters with different slopes—10 percent (foreground) and 20 percent (background)—allow scientist to study microbial transport at different flow rates.

Photo by Keith Weller.

640 pixels wide: (k8641-19.jpg)

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Last Modified: 5/23/2006
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