A simple method for determining unsaturated conductivity from moisture retention data

Campbell, G.S. (1974) A simple method for determining unsaturated conductivity from moisture retention data. Soil Science, 117 (6). pp. 311-314.

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Abstract

The unsaturated hydraulic conductivity function for soil can be calculated directly from a moisture retention function and a single measurement of hydraulic conductivity at some water content. If the moisture retention function can be represented by Y = Y,(0/0,)-b, where Y is the air entry water potential, 9, is the saturated water content, and 6 is an emperically determined constant, then the hydraulic conductivity is given by k = k,(O/O,)2b+8, where k. is the saturated hydraulic conductivity. Agreement of k calculated using this procedure with experimentally determined conductivities for five soil samples was found to be at least as good as with other calculation procedures

Item Type: Article
Author Affiliation: Washington State University, Pullman
Subjects: Atmosperic Science > Climatology
Atmosperic Science > Meterology
Divisions: General
Depositing User: Mr B Krishnamurthy
Date Deposited: 03 May 2011 05:45
Last Modified: 03 May 2011 05:45
URI: http://eprints.icrisat.ac.in/id/eprint/1943

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