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United States Department of Agriculture

Agricultural Research Service

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AFSRC Picture of the Week, January 5, 2009
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Prototype stemflow collector

AFSRC scientists are studying dissolved organic compounds in Appalachian in pasture, silvopasture and forest soils. This prototype mobile stemflow collector mounted on a sugar maple (Acer saccharum) tree is filled with a dark and rich-colored resulting from one winter rainstorm. The stemflow will be analyzed for phenolic and tannin content.

Photo by Harry Godwin

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Last Modified: 6/10/2009
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