Threshold electrolyte concentration relationships for soils from Roma fields The Bend, Pleasant Hills and Brigadoon properties

Bennett, J. McL. (2012) Threshold electrolyte concentration relationships for soils from Roma fields The Bend, Pleasant Hills and Brigadoon properties. Technical Report. University of Southern Queensland , Toowoomba, Australia. [Report]

Abstract

The threshold electrolyte concentration (TEC) relationships were determined for surface and lower depth soil samples from the proposed Roma fields The Bend, Pleasant Hills and Brigadoon irrigation areas. The TEC relationship provides a relative measure of the change in hydraulic conductivity when the soil is in equilibrium with the applied water quality. These TEC relationships can be used to determine the effect on the soil structure of applying irrigation water of different quality (i.e. sodium adsorption ratio and electrical conductivity). The analyses assume a
bicarbonate level of <100 mg L-1. Surface soil samples were provided for the three properties and their respective sampling sites. Deeper samples (ranging between 20 and 70 cm) were also supplied for each site. The stable hydraulic conductivity of the unconsolidated soil columns ranged from 22–24, 23–89, and 56 mm hr-1 in the surface soils and from 2–14, 23–27, and 32 mm hr-1 in the subsoils for The Bend,
Pleasant Hills and Brigadoon, respectively.


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Item Type: Report (Technical Report)
Item Status: Live Archive
Additional Information: NCEA Publication 1003127/12/2. Material from this publication may not be used unless prior written approval has been obtained from the National Centre for Engineering in Agriculture.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 01 Jul 2013 01:42
Last Modified: 03 Nov 2017 05:42
Uncontrolled Keywords: irrigation; soil analysis; Queensland; threshold electrolyte concentration
Fields of Research : 05 Environmental Sciences > 0503 Soil Sciences > 050304 Soil Chemistry (excl. Carbon Sequestration Science)
05 Environmental Sciences > 0503 Soil Sciences > 050305 Soil Physics
07 Agricultural and Veterinary Sciences > 0799 Other Agricultural and Veterinary Sciences > 079901 Agricultural Hydrology (Drainage, Flooding, Irrigation, Quality, etc.)
Socio-Economic Objective: D Environment > 96 Environment > 9609 Land and Water Management > 960908 Mining Land and Water Management
URI: http://eprints.usq.edu.au/id/eprint/22329

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