EVALUATION OF THE INFORMATION MODEL OF THE LEVEL REGIME OF THE DISTRIBUTION IRRIGATION CANAL

Purpose: to substantiate the efficiency of using the information model of the irrigation canal level regime to optimize the supplied irrigation rate. Materials and methods. The object of the study was a distribution irrigation canal with a system of point water intake nodes in Slavyansky district of the Krasnodar Territory, designed to supply water to rice modules. Results. An information model to determine the optimal level regime of the irrigation canal taking into account the required rice irrigation rate, was developed. A coordinated graph of the irrigation canal water surface indicating the need to lower the level regime by 0.017 m on the studied section with a length of 406 m, was obtained. Graphs of the longitudinal profile of the water level in the irrigation canal, the slope of which was ib = 0.00005482, were constructed, as well as the diagram of the calculated level regime in the canal with head section marks (2.235 mBS): node 4 = 2.100 mBS; node 3 = 2.076 mBS; node 2 = 2.045 mBS; node 1 = 1.983 mBS. Conclusions. The study of domestic and world experience shows that one of the main problems in rice irrigation is the establishment of the optimal water level regime of the irrigation canal, taking into account the supplied water volumes. To solve this problem, an information model to improve the efficiency of choosing the optimal level regime of the irrigation canal of the Kuban rice irrigation system (ROS) taking into account the required irrigation rate in accordance with the phase of the rice vegetation period was developed. The information model was tested in the operating conditions of the ROS “Kuban”, on results of which the measures to optimize the choice of the level regime of the irrigation canal, which confirms the efficiency of the model using IT technologies, were developed.