Murdoch University Research Repository

Welcome to the Murdoch University Research Repository

The Murdoch University Research Repository is an open access digital collection of research
created by Murdoch University staff, researchers and postgraduate students.

Learn more

Chloride movement in a de-watered saline soil profile

Bourgault du Coudray, P.L., Williamson, D.R. and Scott, W.D. (1994) Chloride movement in a de-watered saline soil profile. In: Proceedings of the Third Triennial Western Australian Soil Science Conference: Soils '94, 7 - 9 September, Busselton, Western Australia pp. 135-142.

PDF - Published Version
Download (868kB)


Surface ripping affected the downward movement of water and solutes within a saline dewatered duplex soil profile near Kellerberrin. Prior to ripping, 63% of the total rainfall ended up as runoff and there was little evidence from tensiometric measurements and soil solution samples of significant downward flows of water below a depth of 0.3m. Following ripping to a depth of 0.2m to break a near surface hard layer: runoff was reduced to around 13%; there was some change in soil matrix potential; some leaching of the surface soil occurred; and several preferred water fluxes were intercepted at a depth of 1.5m. These intercepted fluxes were recorded shortly after (<1hr) high intensity rainfall greater than 20mm, suggesting post ripping flow through macropores. The initial chloride storage in the profile was 162t ha-1, approximately 5t ha-1 chloride was leached during the field study (3%). The main leaching mechanism before ripping was runoff (0.5t ha-1). After ripping, flow through macropores and mesopores accounted for 0.5t ha-1 , runoff 0.09t ha-1 with the rest redistributed through the soil matrix.

Item Type: Conference Paper
Murdoch Affiliation(s): School of Environmental Science
Publisher: Australian Society of Soil Science Inc (WA Branch)
Item Control Page Item Control Page


Downloads per month over past year