natural geochemical barrier

Purpose. Assessment of soil salinity alluvial flood plains r. Uda within the city Kharkiv and defining fea-tures of the profile distribution hloryd-, hidrokarbonat- and carbonate- ions in the soil profile to create a cluster alluvial soils in the flood plains environmental management system of urban areas.Methods. Complex field, chemical-analytical, statistical (interpolation, clustering, and so on.). Results. The soil salinization processes of the alluvial soils in the inundated landscapes of Uda river in Kharkiv’s range are investigated. The acid-alkaline characteristics of soil genetic horizons are evaluated, and the profile distribution of chloride, hydrocarbonate and carbonate ions in the soils profile of the investigated alluvial soils are showed. The stages of profile migration of the corresponding ions in the study area are evaluated, as well as the degree of salinity of each genetic horizon of the studied soils profiles are assessed. The predominance of progressive chloride-soda salinization of the alluvial soils in the inundated landscapes of Uda river in Kharkiv’s range is determined. The presence of natural height valuable sorption and chemisorption radial, mechanical and lateral acid-alkaline geochemical barrier in the research area is suggested. Conclusions. Proposed use parameters salinization of soils on alluvial flood plains in the cluster system of environmental management of urban areas.

Purpose. The soil elementary processes (SEP) in the inundated landscapes of Uda river in Kharkiv’s range are investigated. Methods. Complex field, chemical analytical techniques and methods of data processing (including interpolation methods, clustering, and so on). Results. With the method of expert’s estimations the intensity of the soil elementary processes is gave to assessment to the territory of the study. The acid-alkaline characteristics of soil genetic horizons of inundated landscapes of Uda river in Kharkiv’s range are evaluated. The presence of natural height valuable sorption and chemisorption lateral acid-alkaline geochemical barrier in the ​​research area is suggested. Conclusions. The most common and severe elementary processes of soil formation floodplain landscapes p. Uda within Kharkiv is humus-ilyuvialny and clay-ilyuvialny processes related to illuvial accumulation processes, ie, dominated by the processes of accumulation of matter and energy, which is indicative of the presence of natural geochemical barrier, due to the peculiarities of the relief and the composition of the parent rocks.