The aim of the research is a comprehensive assessment of technical level and operation efficiency of ameliorative systems and hydraulic facilities on the basis of info-analytical analysis of the data obtained from different sources. For this analysis a technique comprising a nomenclature of 18 indices and recommendation on comprehensive assessment of technical level and operation efficiency of ameliorative systems was developed. According to technical status, ameliorative objects were divided by four classes namely I and II classes – wear less than 50 %, III – wear less than 90 %, and IV class – wear greater than 90 %. During the monitoring, technical status of 3772 ameliorative objects were studied including irrigation systems – 682, drainage systems – 905, hydraulic facilities – 348, stationary pump plants – 1610, different types of canals – 170, and detached water reservoirs –7. Physical depreciation of the bulk of ameliorative objects was as following, for pump plants – 75–100 %; closed irrigation nets (pipelines) – 50–100 %; open irrigation nets – 75–100 %; irrigation systems – 50–100 %; drainage systems – 75–100 %; hydraulic facilities –75–100 %. Most of ameliorative objects (84 %) on their technical status refer to III and IV classes including 70 % of irrigation systems, 88 % of drainage systems and detached hydraulic facilities, and 100 % of canals. The methodological recommendation developed enables to differentiate existing ameliorative systems by types of their restoration (building, current and capital repair, reconstruction) allow decreasing the volumes of capital investments for these activities in 1.2–1.5 times and more.
Keywords: reclaimed lands, ameliorative systems, technical level, operation, monitoring of technical status, water consumption, use efficiency of reclaimed lands, social efficiency, ecological efficiency, economic efficiency.
