HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Rogers, J. S. Articles by Klute, A. Search for Related Content PubMed Articles by Rogers, J. S. Articles by Klute, A. Agricola Articles by Rogers, J. S. Articles by Klute, A.

The Hydraulic Conductivity-Water Content Relationship During Nonsteady Flow Through a Sand Column¹

ABSTRACT

Water contents and hydraulic heads were measured for three rates of draining and rewetting a vertical column of sand. Fluxes of water determined from the water content data and hydraulic gradients determined from the hydraulic head data were used in Darcy's Law to determine hydraulic conductivity. The hydraulic conductivity was a single valued function of the water content exhibiting no hysteresis. There was no relationship between hydraulic conductivity and the rate of change of water content although a rate dependent water content-pressure head relationship was present in the data.

¹ Joint contribution of the Cornbelt Branch, Soil & Water Conser. Res. Div., USDA and the Agronomy Dep., Univ. of Illinois, Urbana.

² Agricultural engineer, USDA Gainesville, Fla. 32601 and Soil Scientist, USDA and Colorado State Univ. Ft. Collins.

Received for publication March 12, 1971. Accepted for publication May 21, 1971.