Determination of soil hydraulic parameters based on experiment of single ring infiltration permeameter and numerical inverse method

Field infiltration experiment of a single ring permeameter is widely used for measuring soil hydraulic parameters.In this study,the 3-dimensional numerical model of unsaturated zone soil moisture(VSF) is improved by coupling the modular of the infiltration water from the single ring permeameter.The improved VSF was integrated with the optimization program(LEVMAR) to produce an inverse model(VSF-LEVMAR) for soil hydraulic parameter optimization.The infiltration experiments of fixed water head and...