Modeling of the Change of Soil Moisture Using HYDRUS Program

Water has been a more important agricultural input due to global warming. In agricultural production, in order to produce high quality and more products factors affecting plant growth should be well understood. Soil moisture is one of the most important of these factors. It is very important to keep the moisture in certain limits in order to make it beneficial for the plants. Remote sensing, precision agriculture applications, surface and subsurface water flow, soil–water–plant–atmosphere models require reliable and simultaneously measured soil moisture values. The determination of the variation of soil moisture or water movement in the soil under land and laboratory conditions is quite difficult and time consuming. In recent years, the simulation of moisture and water flow in the soil with computer models can be performed more easily. HYDRUS is one of the most commonly used programs in soil water flow tracing. In this study, it was aimed to describe the HYDRUS program and required data format along with a sample application using the program.