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Effects of intermittent ponding of salt redistribution through a saline-sodic clay soil
Authors: Mustafa, M.A., De Jong, R., Hayhoe, H.N. And G.C. Topp
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Download file: https://library.csbe-scgab.ca/docs/journal/27/27_2_105_ocr.pdf
Published in: CBE Journal » CBE Journal Volume 27 (1985)
Download RAW file: https://library.csbe-scgab.ca/docs/journal/27/27_2_105_raw.pdf
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Description: Leaching, to obtain a favorable distribution of soluble salts in the profile, is an important aspect of the utilization of salt affected soils. Early reclamation practices which aim at the complete removal of salts from the profile by leaching and subsurface drainage are usually not feasible for heavy clay, montmorillonitic soils because of their low hydraulic conductivity. Intermittent application of water has been pro posed as an efficient method for the leaching of inherent saline soils and for establishing an overall favorable salt distribution within the profile (Wilson et al. 1961 Oster et al. 1972 Carter and Robbins 1978), although Abrol and Bhumbla (1973) found that intermittent ponding had no particular advantage over continuous ponding. Previous research has suggested that leaching is more water-efficient when the soil is maintained unsaturated and when flow rates are relatively small (Biggar and Nielsen 1967 Bresler and Hanks 1969 Kirda et al. 1974). As a result irrigation water for the leaching of initially saline soil is utilized most efficiently when applied by sprinkler or trickle systems, as opposed to flooding or ponding. Yet the latter form of application is often the only economically feasible one in the arid and semi-arid regions of Sudan. The two factors which must be considered simultaneously in reclaiming saline areas with limited irrigation-water resources, (i) the total quantity of water available and (ii) the frequency at which this water should be applied, have attracted little attention.
Keywords: effects of intermittent ponding of salt redistribution through a saline-sodic clay soil
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Citation: Mustafa, M.A., De Jong, R., Hayhoe, H.N. and G.C. Topp 1985. EFFECTS OF INTERMITTENT PONDING OF SALT REDISTRIBUTION THROUGH A SALINE-SODIC CLAY SOIL. Canadian Agricultural Engineering 27(2):105-110.
Volume: 27
Issue: 2
Pages 105 - 110
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Date: 1985
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Coverage: Canada
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DOI:
Description: Leaching, to obtain a favorable distribution of soluble salts in the profile, is an important aspect of the utilization of salt affected soils. Early reclamation practices which aim at the complete removal of salts from the profile by leaching and subsurface drainage are usually not feasible for heavy clay, montmorillonitic soils because of their low hydraulic conductivity. Intermittent application of water has been pro posed as an efficient method for the leaching of inherent saline soils and for establishing an overall favorable salt distribution within the profile (Wilson et al. 1961 Oster et al. 1972 Carter and Robbins 1978), although Abrol and Bhumbla (1973) found that intermittent ponding had no particular advantage over continuous ponding. Previous research has suggested that leaching is more water-efficient when the soil is maintained unsaturated and when flow rates are relatively small (Biggar and Nielsen 1967 Bresler and Hanks 1969 Kirda et al. 1974). As a result irrigation water for the leaching of initially saline soil is utilized most efficiently when applied by sprinkler or trickle systems, as opposed to flooding or ponding. Yet the latter form of application is often the only economically feasible one in the arid and semi-arid regions of Sudan. The two factors which must be considered simultaneously in reclaiming saline areas with limited irrigation-water resources, (i) the total quantity of water available and (ii) the frequency at which this water should be applied, have attracted little attention.
Keywords: effects of intermittent ponding of salt redistribution through a saline-sodic clay soil
Résumé:
Mots-clés:
Citation: Mustafa, M.A., De Jong, R., Hayhoe, H.N. and G.C. Topp 1985. EFFECTS OF INTERMITTENT PONDING OF SALT REDISTRIBUTION THROUGH A SALINE-SODIC CLAY SOIL. Canadian Agricultural Engineering 27(2):105-110.
Volume: 27
Issue: 2
Pages 105 - 110
Contributor:
Date: 1985
Technical field:
Conference name:
Session name:
Other information:
Type:
Format:
Publication type:
Source:
Relation:
Coverage: Canada
Language 1:
Language 2:
Rights:
Notes:
Other files:
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