Modeling of the Change of Soil Moisture Using HYDRUS Program

Abstract

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