Abstract
Purpose. To reveal the peculiarities of geo-ecological status of the lake-basin system (LBS) of Ozerianske lake for the needs of a balanced nature management. Methods.The research is based on methods of field instrumental landscape-geochemical searches using modern geoinformation technologies and laboratory-analytical diagnostics of soil, water and lake sediments. Results. The current state of economic development of the catchment of Ozerianske lake has been clarified. The results of the research of the hydrochemical composition of lake water have been presented. The results of the experiments with the determination of the content and features of radial, lateral migration of mobile forms of biogenic elements (N, P2O5, K2O) and heavy metals (Co, Pb, Cd, Cu, Zn, Mn) on a landscape soil geochemical microcatena within the catchment area of a lake have been analyzed. A slight excess of MPC in the content of Mn and Cd in the soils of the microcatena has been fixed. The feature of lateral migration of biogenic elements is the increase of their concentration from the eluvial to the superequal facies of the geochemical microcatena, and the radial feature is the decrease of their content with the depth of the soil profile. Moving forms of heavy metals (Co, Pb, Cd, Cu, Mn) are characterized by radial migration - increasing their content with the depth of the soil profile in the horizon (20-40 cm), and further towards the parent rock, their concentration mainly decreases. Conclusions. It was established that the catchment area of Ozerianske lake refers to the anthropogenic-natural (IV) type and has unsatisfying geo-ecological status. In order to improve the geo-ecological status of the catchment area, it is advisable to gradually increase the area of ecostabilizing lands (meadows, forests, forage areas); to control the application of mineral fertilizers and pesticide use, and to prohibit the plowing of land by a 50-100-meter coastal protective strip around the lake.
Highlights
It was established that the catchment area of Ozerianske lake refers to the anthropogenicnatural (IV) type and has unsatisfying geo-ecological status
In order to improve the geo-ecological status of the catchment area, it is advisable to gradually increase the area of ecostabilizing lands; to control the application of mineral fertilizers and pesticide use, and to prohibit the plowing of land by a 50-100-meter coastal protective strip around the lake
Загальний перелік ГДК і ОБРВ шкідливих речовин для води рибогосподарських водойм: [No 12-04-11 чинний від
Summary
It was established that the catchment area of Ozerianske lake refers to the anthropogenicnatural (IV) type and has unsatisfying geo-ecological status. 33028, Украина ОСОБЕННОСТИ ГЕОЭКОЛОГИЧЕСКОГО СОСТОЯНИЯ БАССЕЙНОВОЙ СИСТЕМЫ ОЗЕРА ОЗЕРЯНСКОЕ (ВОЛЫНСКОЕ ПОЛЕСЬЕ) Цель. Озерянское и раскрыть особенности процессов миграции биогенных элементов, тяжелых металлов в почвах ландшафтно-геохимической микрокатены в пределах ОБС. Проанализированы результаты экспериментов с определением содержания и особенностей радиальной и латеральной миграции подвижных форм биогенных элементов (N, P2O5, K2O), тяжелых металлов (Со, Pb, Cd, Cu, Zn, Mn) на ландшафтной почвенно-геохимической микрокатени в пределах водосбора озера. З огляду на вище означене сьогодні важливою проблемою є дослідження процесів міграції хімічних елементів в межах басейнових систем. Озерянське та розкрити особливості процесів міграції біогенних елементів, важких металів у ґрунтах ландшафтно-геохімічної мікрокатени в межах водозбору. – з’ясувати особливості міграції хімічних елементів в ґрунтах водозбору озера. Озерянське, а предметом – геоекологічні процеси міграції хімічних елементів у межах ОБС. З озера також відібрано воду (об’єм 4 дм3), відповідно до Інструкції з відбирання, Схема закладання ландшафтної ґрунтово-геохімічної мікрокатени
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