Estimation of Unsaturated Soil Hydraulic Conductivity Using Inverse Approach Under Soil Salinity Condition

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AMINI M.; EBRAHIMIAN H.; LIAGHAT A.M.

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Paper Information

Journal: Journal of Irrigation Sciences and Engineering Year:2018 | Volume:41 | Issue:3 Page(s): 133-144

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Information Journal Paper

Title

Estimation of Unsaturated Soil Hydraulic Conductivity Using Inverse Approach Under Soil Salinity Condition

Author(s)

AMINI M. | EBRAHIMIAN H. | LIAGHAT A.M. | Issue Writer Certificate

Keywords

Inverse EstimationQ2

Soil Hydraulic PropertiesQ2

Soil SalinityQ1

Unsaturated SoilQ1

Abstract

Moisture flow through unsaturated zone is vital in agricultural engineering, soil science, groundwater hydrology, and environmental engineering. Moisture flow through unsaturated zone is complex due to the dependencies of flow and storage properties on the pressure head and is commonly analyzed by solving Richards’ equation. Solution of Richards’ equation requires the knowledge of soil hydraulic conductivity and water content versus pressure head functions referred to herein as the Soil Hydraulic Properties. Since these functions are highly nonlinear, direct laboratory and field measurements are tedious, time consuming, and involve considerable uncertainty (Hari Prasad et al., 2010). An alternative to the direct determination is to employ the parameter estimation methods using inverse procedure for the determination of hydraulic properties. Indirect methods are divided into several categories, including methods based on pedotransfer functions, semi-physical, and inverse methods (Abbasi, 2007). Determination of hydraulic properties by inversion of in situ measured moisture contents, pressure heads and cumulative infiltration have become an alternative to direct measurements due to decrease in the computational costs and development of efficient optimization algorithms...

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APA: Copy

AMINI, M., EBRAHIMIAN, H., & LIAGHAT, A.M.. (2018). Estimation of Unsaturated Soil Hydraulic Conductivity Using Inverse Approach Under Soil Salinity Condition. IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE), 41(3 ), 133-144. SID. https://sid.ir/paper/217247/en

Vancouver: Copy

AMINI M., EBRAHIMIAN H., LIAGHAT A.M.. Estimation of Unsaturated Soil Hydraulic Conductivity Using Inverse Approach Under Soil Salinity Condition. IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE)[Internet]. 2018;41(3 ):133-144. Available from: https://sid.ir/paper/217247/en

IEEE: Copy

M. AMINI, H. EBRAHIMIAN, and A.M. LIAGHAT, “Estimation of Unsaturated Soil Hydraulic Conductivity Using Inverse Approach Under Soil Salinity Condition,” IRRIGATION SCIENCES AND ENGINEERING (JISE) (SCIENTIFIC JOURNAL OF AGRICULTURE), vol. 41, no. 3 , pp. 133–144, 2018, [Online]. Available: https://sid.ir/paper/217247/en

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