Design and selection of proper drainage system must include a variety of factors such as climatic conditions, evaporation, soil characteristics and ultimately planted crops. Based on the individual complex calculations that take into account all these parameters, appropriate depth and spacing of drainage pipes or ditches is set for effective surface water discharge and groundwater level regulation.
An overview and diversity of systems and their characteristics are presented in the theoretical part of the thesis. At the same time their advantages and disadvantages are presented. For the purpose of drainage system planning and analysis of individual system influence or effectiveness on water regime in this thesis, we used computer model DRAINMOD to estimate their influence on the selected test area. The result of multiple model simulations with different parameters is the most appropriate depth and spacing of drainage. In addition to the hydrological model DRAINMOD offers also other options for drainage system simulation. Salinity, nitrogen and crop
yield are worth mentioning.
On account of DRAINMOD models diversity and a wide range of available parameters, program turns out to be extremely useful and technically advanced tool for carrying out a concrete plan of the drainage system. The most suitable choice for testing surface due to proximity of river Sava waterway is drainage system in combination with irrigation.