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|Botanică sistematică (285)|
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ИВАНЧЕНКО, Ольга; БЕССОНОВА, Валентина. Содержание форм азота в листьях древесных растений как составляющая мониторинга состояния дендрофлоры парков г. Днепропетровск . In: Ştiinţa Agricolă. 2016, nr. 2, pp. 59-65. ISSN 1857-0003.
|Numărul 2 / 2016 / ISSN 1857-0003 /ISSNe 2587-3202|
This research has been conducted to evaluate the content of nitrogen forms in the leaves of woody plants in the parks located at different distances from sources of pollution in the urban area of Dnipropetrovsk. It has been found that in all except a few wood species such as Tilia plathyphyllos Scop. and Biota orientalis L. the content of total nitrogen does not differ from the control indices. In the city parks (e.g., in the park named after Yu. Gagarin and Sevastopol park), where the plants are exposed to low-risk man-induced impacts, the content of protein nitrogen in the leaves of the trees does not differ from the control indices, while this index is less in the plants in the other parks under study. Higher contents of non-protein nitrogen have been revealed in the leaves at the model sites in the parks named after L. Globa, T.G. Shevchenko, B. Khmelnitsky, M. Kalinin, and in Мolodezhny park; moreover, that index varies more significantly as compared to the protein nitrogen content. It has been observed that the values of the protein to non-protein nitrogen ratio are less in the leaves of the trees in the parks than the control indices, except for the plants in the park named after Yu. Gagarin. This indicator can be used as a marker of the vigorous status of woody plants in the city parks of industrial urban areas.
Городские парки, мониторинг, Формыазота, Белковый / Небелковый азот,
Древесные растения, листья