An analysis of scientific literature regarding various methods and models for determining and calculating the drainage module, as a key indicator of the hydrological impact of drainage and the drainage status of soil and territory, has been conducted. Empirical, analytical, and water balance methods are used to calculate the drainage module, or its value is based on recommendations without sufficient economic and ecological justification. This does not meet modern requirements for creating and operating such facilities. The research conducted by us using the corresponding set of models for the climatic conditions of the region, water regime, water management technologies (drainage), and the productivity of drained lands for the schematized meteorological regimes calculated for heat and moisture supply years, as well as the natural, agrotechnical, and agro-meliorative conditions of the location of drainage systems, showed that there is a significant change over time and space in the dynamics of both current and weighted average, ten-day values of drainage runoff modules under different weather-climatic conditions, cultivation of various agricultural crops on different soils in the Western Polissіa region of Ukraine. Furthermore, its value, both in relation to the identified main factors and for the drainage system as a whole, differs significantlyfrom the traditionally accepted calculated values, highlighting the need to take this into account when developing projects for the reconstruction, construction, and operation of such facilities.
Author Biographies
Р. Р Volk, National University of Water and Environmental Engineering
Doctor of Engineering, Professor
L. R Volk, National University of Water and Environmental Engineering
Candidate of Engineering (Ph.D.), Associate Professor
A. М. Rokochynskyi, National University of Water and Environmental Engineering
Doctor of Engineering, Professor
Ye. V. Romashchenko, National University of Water and Environmental Engineering
