THE NECESSITY, SCIENTIFIC AND PRACTICAL PRINCIPLES OF IMPROVING METHODS OF DRAINAGE SYSTEMS DESIGN AND CALCULATION

The paper presents a new approach to improving the methods of design and calculation drainage systems their technical elements in mode subsoil moistening mode. This was done on basis substantiating connection all system taking into account influence work efficiency effectiveness regulating water regime drained lands. existence structure hierarchical hydraulic relationship between parameters soil flow movement, closed collector-drainage network, canals structures were determined based application methodology. A physical model, structural mathematical model developed. By using these models, principles determining characteristics or supply (discharge, pressure, velocity etc.) for (drained massif reclaimed field, collector open main canal, intake) entire range variation with possible consideration changes slopes obtained. considered will make it evaluate movement simultaneously every element as interconnection. In future, this improve designing calculating technological systems, thereby ensure overall technical, technological, economic, ecological functioning accordance modern conditions requirements. is further improvement elements, structural, hierarchical, them increase validity general economic creation during implementation adaptive measures regarding climatic level agricultural production area reclamation, example, Ukrainian Polissia. It also provide an opportunity necessary food security region country whole war post-war periods.