Moisture content distribution model for the soil wetting body under moistube irrigation

This study investigated the moisture distribution characteristics of a soil wetting body under different influencing factors to inform design and management moistube irrigation system. A mathematical model movement was established based on Hydrus-2D software. The suitability simulation verified by laboratory experiments. Numerical simulations were carried out with investigate influence texture, initial content, specific discharge time body. content is highest at moistube, its value related moistube-specific texture. any point in decreased linearly increasing distance from front five set directions (vertical downward, 45° horizontal, upward vertical upward). trend applicable fine-textured coarse-textured soil. An estimation including saturated hydraulic conductivity, moisture, flow rate maximum all proposed. good (root mean square error = 0.008–0.018 cm3·cm−3, close 0; Nash-Sutcliffe efficiency coefficient 0.987, 1), it can provide practical tool for agricultural water management.