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Published online 6 May 2005
Published in Soil Sci Soc Am J 69:828-833 (2005)
DOI: 10.2136/sssaj2004.0014N
© 2005 Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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AUTOMATION OF A FALLING HEAD PERMEAMETER FOR RAPID DETERMINATION OF HYDRAULIC CONDUCTIVITY OF MULTIPLE SAMPLES

D. O. Johnsona, F. J. Arriagab and Birl Lowerya,*

a Dep. of Soil Science, Univ. of Wisconsin, Madison, WI 53706
b National Soil Dynamics Lab., USDA-ARS, 411 S. Donahue Dr., Auburn, AL 36832



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  		Fig. 1. Photograph and schematic representation of automated falling head permeameter including specifications.

 


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  		Fig. 2. (A) Hydraulic conductivity of saturated soil as a function of time for a sandy soil core obtained via conventional and automated falling head permeameter methods. (B) Pressure of falling head as a function of time for a sand sample.

 


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  		Fig. 3. (A) Hydraulic conductivity of saturated soil as a function of time for a silt loam soil core obtained via conventional and automated falling head permeameter methods. (B) Pressure of falling head as a function of time for a silt loam sample.

 


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  		Fig. 4. (A) Hydraulic conductivity of saturated soil as a function of time for a silty clay loam soil core obtained via conventional and automated falling head permeameter methods. (B) Pressure of falling head as a function of time for a silty clay loam sample.

 




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