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Information Journal Paper

Title

ESTIMATING UNSATURATED SOIL HYDRAULIC CONDUCTIVITY FUNCTION BASED ON SPECIFIC LIQUID-VAPOR INTERFACIAL AREA

Pages

  83-104

Abstract

 Soil hydraulic conductivity is a crucial parameter in modeling flow process in soils and in decision making on water management issues. In this research by using 41 soil samples with 11 different soil textures covering sandy, loam, and clay from the UNSODA DATABASE, an investigation was conducted on the applicability of SPECIFIC LIQUID-VAPOR INTERFACIAL AREA around the soil particles concept for predicting soil hydraulic conductivity function fitted by van Genuchten model. The results showed that the SPECIFIC LIQUID-VAPOR INTERFACIAL AREA (Aws) meniscus around the soil particles does not monotonically increase as suction increases for all soils. Soil moisture corresponding to the maximum Aws is not equal to residual water content but its value depends on soil characteristic curve. The results showed that between FC and PWP, variable viscosity of water around soil particles did not have a marked effect on unsaturated hydraulic conductivity computations. Variable weight of water in the soil, as compared with constant water weight, had a marked effect on the results.

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    APA: Copy

    OMIDI, S., & GHAHRAMAN, B.. (2009). ESTIMATING UNSATURATED SOIL HYDRAULIC CONDUCTIVITY FUNCTION BASED ON SPECIFIC LIQUID-VAPOR INTERFACIAL AREA. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), 16(3), 83-104. SID. https://sid.ir/paper/156173/en

    Vancouver: Copy

    OMIDI S., GHAHRAMAN B.. ESTIMATING UNSATURATED SOIL HYDRAULIC CONDUCTIVITY FUNCTION BASED ON SPECIFIC LIQUID-VAPOR INTERFACIAL AREA. JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES)[Internet]. 2009;16(3):83-104. Available from: https://sid.ir/paper/156173/en

    IEEE: Copy

    S. OMIDI, and B. GHAHRAMAN, “ESTIMATING UNSATURATED SOIL HYDRAULIC CONDUCTIVITY FUNCTION BASED ON SPECIFIC LIQUID-VAPOR INTERFACIAL AREA,” JOURNAL OF WATER AND SOIL CONSERVATION (JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES), vol. 16, no. 3, pp. 83–104, 2009, [Online]. Available: https://sid.ir/paper/156173/en

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