N. N. Tsvetkova's scientific contributions

Publications (6)

Article
Content and distribution of total and mobile forms of trace element Vanadium in the soils of forest and forb-fescue-stipa steppe ecosystems within the Prysamar’ja Dniprovske were studied. It was ascertained, that the gross content of Vanadium in these soils vary from 49 in the pinery-sod soil to 210 mg×kg–1 in chernozem improved by forest.The conen...
Article
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Influence of fertilizers application on the change of indexes of soil quality is studied. As a result of experiment for a period of 2005–2009 we established that the productivity of agricultural plants is multiplied under applying chemical matter in soil. The mobile forms of microelements are accumulated; indexes stipulating exchange processes in...
Article
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The content and distribution of copper in natural and anthropogenic soils of steppeDnieperregion is studied. Differences between the copper contents in soils of Samara-river area and of industrial cities are presented. It is established that the maximal content of copper is in soils of industrial cities, the minimum – in natural soils. The comparat...
Article
The level and regularities of distribution of the copper in the soils of steppe and forest ecosystems of Samara river region were determined. The data on general and mobile forms of copper combination in soils of the studied ecosystems are presented. The interval of copper variation in the soils is indicated. The distribution of copper in soil gene...
Article
Приведены уровень содержания и закономерности распределения марганца в почвах урбосистем индустриальных городов (Днепропетровска, Кременчуга, Днепродзержинска). Проведено сравнение содержания марганца в различных урбозонах. Составлен ряды аккумуляции тяжелых металлов в почвенном покрове территорий промышленных предприятий названных городов
Article
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Natural soil cover has been removed or changed by overconsolidation and agitation of almost all layers of the soil profile at the most part of the technozone of Kremenchuk town. The content of anthropogenic inclusions makes up 25-50 %. On the basis of obtained data and using classification of urban soils the subtypes of existing soils are represent...