摘要：The purpose of this article is to assess the ecological state in the considered space and time in basin geosystems as the most important factor of environmental safety in the influence zones with the technogenic component, which includes various types of hydraulic structures (HTS), referred to as “Activity Objects” as a part of natural and technical systems “Natural environment - Activity Object - Population” on the use of water resources in various sectors of economic activity. To assess the ecological state in space and time in the considered river basin geosystem, within which quantitative and qualitative indicators of water resources are formed, based on the categorical basic concept “System”, which is integrated into the categories “Behaviour” and “Structure” and the concept of the category “System approach” as a research method for assessing the impact of the “Activity Object” on the “Natural environment” and the life of the living “Population”, on the basis of the results of integrated systemic environmental monitoring (ISEM) in the influence zones of the “Activity Object”, a classification characteristic of the types of monitoring studies for an objective assessment of “Natural environment” necessary at the stage of making a decision on the construction or further operation of the “Activity Object”.
