Pedosphere 2(3): 237--244, 1992
ISSN 1002-0160/CN 32-1315/P
©1992 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Effect of Irrigation Water Quality on Soil Hydraulic Conductivity |
| XIAO ZHEN-HUA, B. PRENDERGAST, P. RENGASAMY |
| Institute for Irrigation and Salinity Research, Tatura, Vic. 3616 |
| ABSTRACT |
| The effect of irrigation water quality on unsaturated hydraulic conductivity (HC) of undisturbed soil in field was studied. Results show that within the operating soil suction range (0-1.6 KPa) of disc permeameters. the higher the electric conductivity (EC) of irrigation water, the higher the soil HC became. The soil HC doubled when EC increased from 0.1 to 6.0 ds m-1. High sodium-adsorption ratio (SAR) of irrigation water would have an unfavorable effect on soil HC. Soil HC decreased with the increasing of SAR, especially in the case of higher soil suction. An interaction existed between the effects of EC and SAR of irrigation water on soil HC. |
| Key Words: |
| Citation: Xiao, Z. H., Prendergast, B. and Rengasamy, P. 1992. Effect of Irrigation Water Quality on Soil Hydraulic Conductivity. Pedosphere. 2(3): 237-244. |
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