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Field measurement of soil hydraulic properlies in shallow groundwater zone
Author(s): 
Pages: 1-3,10
Year: Issue:  1
Journal: HYDROGEOLOGY AND ENGINEERING GEOLOGY

Keyword:  unsaturated permeability coefficientsoil water ch aracteristic curveparameter estimzationoptimization;
Abstract: Studies of soil water movement in GSPAC system and modeling wa ter flow necessitate the determination of soil hydraulic properties.A parameter estimation method of determing water retention and hydraulic permeability functi ons simultaneously from field drainage experiment was discussed for the zone whe re a shallow groundwater table is prevailing.The optimization and numerical tech niques were used to determine soil hydraulic properties,making up for the defect s of laboratory measurment.
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