Improving Methods for Assessing the Quality of Water Objects as Sources of Irrigation Water (on the Example of Rivers in the Odesa Region)

The study is devoted to improving methods for assessing the possibility of irrigating agricultural land on the example of rivers in Odesa region. A probabilistic approach was used to assess the irrigation properties of water, taking into account the requirements of EU standards. Proposed: a methodology for assessing the risk of water quality deterioration and its prediction for future irrigation, a detailed typification of irrigation water, an improved methodology of DSTU 2730:2015 for assessing the risk of irrigation salinisation of soils. The paper analyses methods for assessing the quality of irrigation water and provides irrigation water characteristics of some rivers in Odesa Oblast. A significant part of the study is devoted to testing and refining the proposed methods for assessing irrigation water properties. The main results of the study are the first to be obtained in the national practice of environmental research.