Clay Mineralogy, Ionic Composition, and pH Effects on Hydraulic Properties of Depositional Seals

Formation of a depositional seal is common in soils subjected to rainfall or sprinkler or surface irrigation; however, studies on its hydraulic properties are scarce. In this study, the effects of clay mineralogy, exchangeable sodium percentage (ESP), electrolyte concentration, and pH on the hydraul...

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Veröffentlicht in:	Soil Science Society of America journal 2007-03, Vol.71 (2), p.314-321
Hauptverfasser:	Lado, M, Ben-Hur, M, Shainberg, I
Format:	Artikel
Sprache:	eng
Schlagworte:	Agronomy. Soil science and plant productions Biological and medical sciences cation exchange capacity cations Clay clay minerals Conductivity Earth sciences Earth, ocean, space electrolyte concentration equations Exact sciences and technology exchangeable sodium Fundamental and applied biological sciences. Psychology Hydraulic properties Illite Kaolinite Mineralogy Montmorillonite Physical properties Physics, chemistry, biochemistry and biology of agricultural and forest soils Silt loam silt loam soils soil crusts soil hydraulic properties Soil infiltration soil pH Soil science Soil sciences soil surface sealing Soil surfaces Soils Studies Surface irrigation Surficial geology Water and solute dynamics water flow
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Beschreibung
Zusammenfassung:	Formation of a depositional seal is common in soils subjected to rainfall or sprinkler or surface irrigation; however, studies on its hydraulic properties are scarce. In this study, the effects of clay mineralogy, exchangeable sodium percentage (ESP), electrolyte concentration, and pH on the hydraulic properties of depositional seals were investigated. A silt loam packed in columns was leached with 5 g L-1 suspensions of reference montmorillonite, illite, and kaolinite with various ESPs (0-100), electrolyte concentrations (
ISSN:	0361-5995 1435-0661
DOI:	10.2136/sssaj2006.0169