SOIL WATER INFILTRATION AND SALT REDISTRIBUTION IN SOIL OF EL-TINA PLAIN AREA USING WATER OF VARIOUS SALINITY | ||||
| Journal of Soil Sciences and Agricultural Engineering | ||||
| Article 9, Volume 34, Issue 6, June 2009, Page 7115-7127 PDF (735.77 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jssae.2009.100736 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
A. A. El-Kharbotly  ; S. A. Mohamed; A. Y. Genead; H. M. Abdou
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| Soils and Water Department, Faculty of Agriculture, Suez Canal University, Ismailia 41522, Egypt. | ||||
| Abstract | ||||
| Soil infiltration is a key factor to water movement in soil and subsequently leaching of saline soils. A laboratory column experiment was conducted to examine the rate of water flow during the downward movement of various types of infiltrated water for El-Tina plain soil. Transparent perspex columns, 10.4 cm in diameter and 100 cm in length were used in this experiment. The treatments included the use of the River Nile water, and two water mixtures between the Suez Canal and the River Nile water of 1:15 and 1:1. The redistribution of salts after water infiltration was also assessed, and the changes in selected soil properties were evaluated. Results showed that the accumulated water intake (cm) were higher when infiltrating with the 1:1 water mixture as compared to both the River Nile and the 1:15 water mixture. The elapsed time required for the wet front to reach the bottom of the soil column with the 1:1 water mixture was only half of the time required using the River Nile water. Alkalinity build-up occurred during infiltration with the River Nile water, even in the presence of the gypsum requirements in the upper 15 cm soil layer. Salt redistribution showed that infiltration with low salinity water caused more accumulation of salt at the lower soil layers. pH values decreased as the salt content increased in the lower soil layers. Sodium was found to be the major cation, followed by magnesium and calcium. Magnesium concentrations were extremely higher in the lower soil layers as compared to the upper soil layers. Chloride was the dominant anion followed by sulfate. | ||||
| Keywords | ||||
| Infiltration; Wet front; Salt redistribution; El-Tina plain | ||||
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