Experience in conducting local reclamation measures to restore technogenically saline soils

In this study, a detailed analysis of various methods of remediation of soils subjected to technogenic halogenesis was carried out, with special emphasis on the processes of salinization and contamination with chloride ions. An original author's three-stage concept of restoration measures aimed at effective remediation of the soil cover to its natural state and functionality is presented. The experimental part of the work is based on the results of reclamation measures carried out on a specific technogenically saline site within the Middle Ob region. The methods and technologies applied at each stage of restoration work are described in detail, including the preparation of the territory, the use of specialized reagents and materials, as well as the organization of systematic monitoring of soil parameters during the remediation process. The analysis of the dynamics of changes in the concentration of chloride ions in soil horizons for the period from 2009 to 2023 showed a significant decrease in the content of chlorides. Quantitative data indicate a more than twenty-fold decrease in the concentration of Cl⁻ in the upper soil layers, which confirms the high efficiency of the proposed remediation technology. It was established that the application of the developed methodological recommendations not only contributes to an effective reduction in the concentration of chlorine ions, but also ensures the restoration of vegetation cover on the reclaimed territory. This, in turn, leads to a significant reduction in the environmental damage caused to soil ecosystems, both in the short and long term. The proposed approach has a high potential for widespread implementation in the practice of restoration of territories affected by technogenic salinization, and represents a significant contribution to improving safety and sustainability of the environment.