Комплексная оценка пригодности водных ресурсов для орошения

Abstract

Assessment of the suitability of water resources for irrigation purposes using various approaches. The closure of the North Crimean Canal system has led to an increase in water scarcity in the Republic of Crimea. As a result, limited usable water resources have been used for irrigation purposes. For a comprehensive understanding of the consequences of this type of anthropogenic activity, it is necessary to assess the quality of water in terms of its negative impact on plants, soil, elements of irrigation systems and irrigation techniques. The article provides a brief description of the most widely used approaches in world and domestic practice to analyze the suitability of water resources for irrigation purposes. Based on them, on the example of specific water management facilities whose resources are used or are planned to be used for irrigation, a comprehensive assessment of water quality was carried out. As a result of the study, it was found that the analysis of the suitability of water resources for irrigation purposes, based only on the assessment of their chemical composition, does not always allow us to get an unambiguous answer to the question whether they should be used for irrigation, since this is further influenced by a number of factors: the amount of precipitation, the volume of irrigation norms, the method of irrigation, the type of soil and others. However, its results contribute to the justification of actions aimed at reducing / preventing the negative consequences of the use of water in agriculture that does not meet the quality requirements.