Estimation of Hydraulic Parameters from the Soil Water Characteristic Curve

Soil water characteristic curve (SWCC) is one of the most essential hydraulic properties that play fundamental role in various environmental issues and management. SWCC gives important information for movement, soil behavior, infiltration, drainage mechanism, affecting circle aquifer recharge. Since world’s freshwater withdrawals go irrigation uses, decoding beneficial, as it affects saving through planning. Estimation crucial parameters, such field capacity (FC) permanent wilting point (PWP) key solution saving. Modelling parameters estimation are great importance, since laboratory experimental procedures experiments often time-consuming processes. In present study, along with FC PWP two types were obtained via specific laboratory. order to simulate estimate PWP, data approximated van Genuchten’s model. Results showed using excellent results, while method rationally overestimates PWP. Hence, presented leads can be used planning practices.