Researh allowed to determine that value of water resources and competition for access to them would increase due to climate change. That is why role of fair and accurate water distribution to consumers both between different sectors of the economy and within them will increase (for example agricultural industry). Modern examples of water metering automation in irrigation systems demonstrate that partial automation is most often used, which uses SCADA technologies. It is still important to create a system for accounting for water consumption and distribution, consisting of several levels with the use of modern technological solutions, including SCADA technology, in the region or at the level of the water supply reclamation organization. No less important is the question of correlation of modern irrigation technology with the possibilities of irrigation systems.

Purpose: analysis of indicators of water resources (WR) use for withdrawal and losses in federal institutions of the reclamation industry. Materials and methods. Materials for analysis of water resources use indicators were provided according to a specially developed table 48 by federal state budgetary institutions “Department of Land Reclamation and Agricultural Water Supply” (FSBI). The data were analyzed in the context of federal districts (FD) and some FSBI. Results. It has been determined that, in general, in the Russian Federation in 2021, the volume of water withdrawal into water management systems (WMS) according to the FSBI amounted to 17.6 km³, the volume of losses was 4.4 km³ (25 % of the volume of water withdrawal). The main withdrawal and losses of WR (99 %) took place in three FD: North Caucasus, Southern and Volga FD. The North Caucasian FD is the leader in water withdrawal, its share in the total volume of water withdrawal is 62.5 %, or about 11 km³. Among the FSBI in terms of water withdrawal, the leading position is occupied by five FSBI: Kubanmeliovodkhoz, Department of the Ministry of Meliovodkhoz of the Republic of Dagestan, UEBSK, Stavropolmeliovodkhoz, Rostovmeliovodkhoz. In total, in 2021, they carried out the withdrawal of 12.3 km³ (70 % of the total volume of withdrawn WR). The largest volume of losses was noted in the North Caucasian FD – 2.5 km³. In the context of the FSBI, the largest losses occur at the Minmeliovodkhoz of the Republic of Dagestan and Kubanmeliovodkhoz, which amounted to 0.95 and 0.89 km³ in 2021, or 42 % of the total losses. Compared to 2020, there was an increase in losses by 12 and 41 %, respectively. According to FSBI, the largest share of losses from the volume of water withdrawal was noted in Astrakhanmeliovodkhoz and amounted to 35 %. Conclusions. To increase the efficiency of WR use, it is necessary to focus on the analysis of WMS operation in the North Caucasus and Southern FD, in particular, by the largest water users: FSBI “Minmeliovodkhoz of the Republic of Dagestan” and “Kubanmeliovodkhoz”, primarily with the aim of reducing losses when supplying WR to consumers.

Purpose: substantiation of individual economic mechanisms that can increase the efficiency of reclamation agriculture, which can be considered as elements of the developed concept of creating agro-industrial territories of advanced development based on the use of reclamation technologies. Materials and methods. The methods of systemic, complex study, comparison, analysis and generalization of data were used. Results. As a result of the study, the necessity of data collection on the productivity of reclaimed lands and the efficiency of production on reclaimed lands was determined; such data collection should be carried out at the state level, since the collected data can be used to calculate the efficiency of using funds from Russian taxpayers; it was proposed to introduce rules for using reclaimed land, in the restoration of which a significant contribution was made from the budgets of various levels, which oblige, for example, the owners of irrigated lands to use crop cultivation technologies by irrigation; when restoring (construction, reconstruction, modernization) of reclaimed lands, apply the strategy of cluster development of the territory, which should take into account the subsequent technological processes that can create added value for agricultural products, and currently available innovative solutions; organization of a cooperative reclamation park as an organization involving direct consumers of irrigation water into the management of reclamation systems; introduction the same price for all members of the cooperative for water supply within the framework of the cooperative reclamation park, regardless of the location of their farms. Conclusions. The proposed mechanisms for the development of land reclamation are designed to contribute to the effective operation of hydro reclamation systems and to improve the well-being of workers on their territory.

Purpose: to substantiate the list of necessary water quality indicators for irrigation systems, to develop a form for data collection on water quality indicators and their use in the development of interactive maps based on geographic information technologies (GIS). Materials and Methods: regulatory documents, data from reports of the Federal State Budgetary Scientific Institution “Russian Scientific Research Institute of Land Improvement Problems”, open sources on the Internet, scientific and technical literature were used for the research. The research methods were data collection, processing, analysis and synthesis. Results: analysis of open information sources made it possible to substantiate the list of water quality indicators; for data collection from federal state budgetary institutions (land reclamation and agricultural water supply departments), a form and recommendations for filling it out were developed, indicating the documents used to fill it out; the estimated volume of financial costs for conducting water analyzes was calculated according to the recommended list of indicators, which is 55125600 rubles for 669 federal-owned irrigation systems; it is proposed to use the collected data for the development of interactive GIS maps. Conclusions. The developed interactive maps displaying various indicators of water quality in irrigation systems can be effectively applied in the management process, as well as they can improve the efficiency and performance of justified decision-making. In the course of further prospective development of GIS, the integration of interactive maps of reclamation systems with other automated systems, such as SCADA, may be envisaged.

Российский научно-исследовательский институт проблем мелиорации, Новочеркасск, Российская Федерация АЛГОРИТМЫ РАСЧЕТА ЭЛЕМЕНТОВ ЖИВОГО СЕЧЕНИЯ ОСУШИТЕЛЬНЫХ КАНАЛОВ РАЗЛИЧНЫХ ФОРМ Цель: разработка алгоритмов и принципов создания программного обеспечения для расчета элементов живого сечения осушительных каналов мелиоративных систем различных форм. Проектирование гидротехнических сооружений-сложный процесс, включающий различные операции, в т. ч. и расчеты, которые могут являться исходными данными для производства графической части разрабатываемого проекта. Автоматизация процесса расчета с применением программного обеспечения позволяет ускорить сам процесс расчета, рассчитать несколько вариантов и выбрать наилучший, избавиться от ошибок вследствие минимизации воздействия человеческого фактора. Материалы и методы. В качестве основного исходного материала, содержащего гидравлические расчеты осушительных каналов, использовались справочники по мелиорации и водному хозяйству. Построение алгоритмов производилось в соответствии с требованиями ГОСТ 19.701-90 (ИСО 5807-85). Обработка числовых данных осуществлялась с использованием методов математической статистики. Результаты. Алгоритмы программного обеспечения разработаны для дальнейшего использования в программной среде Microsoft Excel, позволяют рассчитать все необходимые геометрические параметры живого сечения осушительных каналов различных форм и скорректированы под ее функциональные возможности. Для автоматизации расчетов в среде Microsoft Excel, в частности для расчета элементов живого сечения осушительных каналов параболической, комбинированной и параболической формы с донной вставкой, возникла необходимость в дополнительной корректировке исходного материала при расчете параметра параболы и функции параболического сечения. Выводы. Разрабатываемое программное обеспечение позволяет производить расчет элементов живого сечения осушительных каналов трапецеидальной, параболической, комбинированной, полигональной и параболической формы с донной вставкой и может быть реализовано в качестве калькулятора для выполнения работ по проектированию осушительных каналов мелиоративного назначения. Ключевые слова: живое сечение канала; форма канала; осушительный канал; проектирование; алгоритм.