Effect of sodium adsorption ratio and electric conductivity of the applied water on infiltration in a sandy-loam soil
| Autor: | Abdulwahed M. Aboukarima, Mohamed Said Abdalla El Marazky, Mohammed A. Al-Sulaiman |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
010504 meteorology & atmospheric sciences Infiltration Kostiakov electric conductivity sodium adsorption ratio Infiltration Analytical chemistry 010501 environmental sciences Management Monitoring Policy and Law Infiltration (HVAC) 01 natural sciences Applied Microbiology and Biotechnology Applied water electric conductivity Electrical resistivity and conductivity sodium adsorption ratio Loam Sodium adsorption ratio Infiltrometer Kostiakov Waste Management and Disposal 0105 earth and related environmental sciences Water Science and Technology |
| Zdroj: | Water SA; Vol 44, No 1 (2018); 105-110 Water SA, Volume: 44, Issue: 1, Pages: 105-110, Published: 2018 |
| ISSN: | 1816-7950 0378-4738 |
| DOI: | 10.4314/wsa.v44i1.12 |
| Popis: | Infiltration measurements using a double-ring infiltrometer were conducted on a sandy-loam soil located in Saudi Arabia. The measurements were performed for an undisturbed soil. The effect of sodium adsorption ratio (SAR) and electric conductivity (EC) of the applied water on infiltration rate was examined. The infiltration rate at the initial time was high, in the order 305 > 240 > 137 > 104 > 65 mm/h for SAR of 3.34, 3.52, 4.14, 4.18, and 7.60, respectively. The results showed that 180 min after the initial time of measurement in the sandy-loam soil, the final infiltration rates were in the range of 21.1–44.0 mm/h for the different qualities of water considered in this study, with an average value of 33.8 mm/h. Hence, the infiltration rate is sensitive to the SAR of the applied water. The final infiltration rate (IR f ) and the final cumulative infiltration depth (Z f ) after 180 min could be predicted using the following equations: IR f (mm/h) = 49.399 + 6.691 × EC (dS/m) – 6.740 × SAR (—) R2 = 0.939 Z f (mm) = 148.198 + 20.074 × EC (dS/m) – 20.221 × SAR (—) R2 = 0.9387 Keywords: Infiltration, Kostiakov, electric conductivity, sodium adsorption ratio |
| Databáze: | OpenAIRE |
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