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Article << Previous     |     Next >>   Contents Vol 32(3)

Effect of water salinity on inter-rill erosion and infiltration - Laboratory study

M Agassi, I Shainberg and D Vandermerwe

Australian Journal of Soil Research 32(3) 595 - 601
Published: 1994

Abstract

The effect of water salinity on inter-rill erosion and infiltration rate was studied using six soils from South Africa. The soils were subjected to simulated rainstorms (22.3 J mm-1 m-2) using three water salinities (electrical conductivity) of 0.01, 0.7 and 2.5 dS m-1, respectively. The soils were divided into stable and unstable soils, depending on their susceptibility to erosion processes and seal formation. In general, infiltration rate increased and runoff and erosion decreased with increasing water salinity, for the unstable soils, while with the stable soils, water salinity had no effect, or even deleterious effects, on infiltration rate and erosion. A very high correlation was found between final infiltration rate and erosion for all the soils and water salinities. Keywords: Inter-Rill Erosion; Infiltration; Water Salinity; Soil Sodicity; Runoff; Aggregate Stability;



Full text doi:10.1071/SR9940595

© CSIRO 1994

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