My Account: Log In | Join | Renew
Search
Author
Title
Vol.
Issue
Year
1st Page

Abstract

 

This article in SSSAJ

  1. Vol. 58 No. 2, p. 319-325
     
    Received: Jan 21, 1993
    Published: Mar, 1994


    * Corresponding author(s):
 View
 Download
 Alerts
 Permissions
 Share

doi:10.2136/sssaj1994.03615995005800020009x

Automatic Atomized Water Spray System for Soil Hydraulic Conductivity Measurements

  1. C. Dirksen  and
  2. S. Matula
  1. Dep. of Water Resources, Wageningen Agricultural Univ., 6709 PA Wageningen, the Netherlands
    Dep. of Soil Science and Geology, Univ. of Agriculture, Faculty of Agronomy, Prague 6, Czechoslovakia

Abstract

Abstract

Soil hydraulic conductivity, K, as function of volumetric water content, θ, must be known accurately for any quantitative investigation of water and solute transport in unsaturated soil. Direct measurements of K(θ) are hampered by lack of a suitable apparatus to apply small and spatially uniform water flux densities to soil surfaces for extended periods of time. We developed an automatic atomized water spray system that meets these requirements. Results indicate that, with this water spray system, soil hydraulic conductivities between saturation and values approaching 0.1 mm/d can be measured easily, quickly, and accurately. Hydraulic conductivities were a single-valued function of water content, measured simultaneously with time-domain reflectometry, but not of pressure head.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © . Soil Science Society of America