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United States Department of Agriculture

Agricultural Research Service

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AFSRC Picture of the Week, August 13, 2007
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Employeees with lysimeter

Small bucket lysimeters are weighed several times every week in the field to measure actual water use by forage grasses in proximity to trees.  The lysimeters are installed in the ground with the top even with the soil surface along north and south edges of notches cut into hardwood forest both to the east and to the west of existing pasture.  Biological Technician C.E. Lynch and a summer student employee Marty Walker determine how the amount and daily timing of solar radiation affects water demand by forage grasses.  This information is being used to help design silvopasture systems that make efficient use of both solar radiation and precipitation in Appalachia.

 

For more information about this research contact Dr. Charles Feldhake

 

Photo by Dr. Charles Feldhake

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Last Modified: 8/13/2007
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