HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Hadas, A. Articles by Frenkel, H. Search for Related Content PubMed Articles by Hadas, A. Articles by Frenkel, H. Agricola Articles by Hadas, A. Articles by Frenkel, H.

Infiltration as Affected by Long-term Use of Sodic-Saline Water for Irrigation¹

ABSTRACT

Infiltration rates and hydraulic conductivity of two fields were determined to evaluate the long-term impact of irrigation with saline-sodic water [electrical conductivity (EC) = 5.6 mmho/cm and sodium adsorption ratio (SAR) = 26] and the benefit of gypsum treatments. Field 1 had been irrigated for 2 years and field 2 for 8 years. Infiltration rates were measured by a constant head method and hydraulic conductivity by Bower's method using distilled water (to simulate rainwater) and the saline-sodic irrigation water. Results indicated that the infiltration rates of the gypsum-treated plots were higher than the nontreated plots for each field, and the infiltration rate of the soil irrigated with sodic-saline water for 8 years was greater than the infiltration route of field irrigated for 2 years. The latter difference was related to different crust structures found in the two fields. Hydraulic conductivities and infiltration rates of soil crusts were calculated for rainfall and for irrigated conditions. The results are discussed in view of the existence of CaCO₃ and gypsum in the original and treated soil, respectively. Some estimates of calculated final infiltration rates under rainfall conditions are presented.

¹ Contribution no. 209-E, 1980 series, from the Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel.

² Soil Scientists, Divisions of Soil Physics and of Physical Chemistry, respectively. Inst. of Soils and Water, ARO, The Volcani Center, Bet Dagan, Israel.

Received for publication July 10, 1980. Accepted for publication September 3, 1981.

This article has been cited by other articles:

				S. Assouline Rainfall-Induced Soil Surface Sealing: A Critical Review of Observations, Conceptual Models, and Solutions Vadose Zone J., May 1, 2004; 3(2): 570 - 591. [Abstract] [Full Text] [PDF]