Малышева З. Г., Танюкевич В. В., Скрынников Д. С. Парковые насаждения города, как геохимический барьер // Научная жизнь. 2019. Т. 14. Вып. 6. С.1006–1016. DOI: 10.35679/1991-9476-2019-14-6-1006-1016

Малышева Зинаида Георгиевна, д-р с.-х. наук, доцент, профессор кафедры лесоводства и лесных мелиораций, Новочеркасский инженерно-мелиоративный институт им. А. К. Кортунова – филиал ФГБОУ ВО «Донской государственный аграрный университет»: Россия, 346428, Ростовская обл., г. Новочеркасск, ул. Пушкинская, 111.

Танюкевич Вадим Викторович, д-р с.-х. наук, профессор, зав. кафедрой лесоводства и лесных мелиораций, Новочеркасский инженерно-мелиоративный институт им. А. К. Кортунова – филиал ФГБОУ ВО «Донской государственный аграрный университет»: Россия, 346428, Ростовская обл., г. Новочеркасск, ул. Пушкинская, 111.

Скрынников Денис Сергеевич, аспирант, ассистент кафедры лесоводства и лесных мелиораций, Новочеркасский инженерно-мелиоративный институт им. А. К. Кортунова – филиал ФГБОУ ВО «Донской государственный аграрный университет»: Россия, 346428, Ростовская обл., г. Новочеркасск, ул. Пушкинская, 111.

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Список литературы:

1. Малышева З. Г. Экологическое обоснование использования орехоплодных в биопродуктивных мелиорациях агроландшафтов степной зоны Северного Кавказа: диссертация на соискание уч. степени д-р с.-х. наук. – 2007. – С. 86–100.

2. Малышева З. Г. Аккумуляция тяжелых металлов зелеными насаждениями урболандшафтов / З. Г. Малышева // Научная жизнь. – Москва, 2018. – № 12. – С. 109–119.

3. Ивонин В.М. Лесомелиорация ландшафтов / В. М. Ивонин, Н. Д. Пеньковский. – Ростов н/Д : СКНЦ ВШ, 2003. – С. 134–145.

CITY PARKLAND AS A GEOCHEMICAL BARRIER

Malysheva Zinaida Georgievna, Dr. of Agric. Sci., Prof., Don State Agrarian University (Novocherkassk branch), Novocherkassk. Russia.

Tanyukevich Vadim Viktorovich, Dr. of Agric. Sci., Prof., Head of Depart., Don State Agrarian University (Novocherkassk branch), Novocherkassk. Russia.

Skrynnikov Denis Sergeevich, postgraduate student, Lecturer, Don State Agrarian University (Novocherkassk branch), Novocherkassk. Russia.

Keywords: gross forms of heavy metals, parkland, geochemical barrier, biological accumulation.

Abstract. This paper discusses the biological accumulation of heavy metals in urban parklands. The purpose of the studies conducted in the city of Novocherkassk of the Rostov region, which is characterized by a tense environmental situation, is to study the biological accumulation of heavy metals (Zn, Pb, Cd, Ni, Co, Mn, Cu) in the soil and leaf mass, to identify park standsthat play the role of geochemical barrier. The typical park objects were selected: the Aleksandrovsky Garden Park, the  Kazachok Children’s Park, the  Square in Troitskaya Square, the  park in front of the House of Culture OAO NPO NEVZ, the Donskoy microdistrict square and the Krasnaya Spring grove, green plantations of which are represented mainly by such tree species as Aesculus hippocastanum L.,Acer platanoides L., Fraxinus lanceolata Borch, Tilia cordata L., Ulmus laevis L., Robinia pseudoacacia L., Acer platanoides L., Prunus cerasifera L., Acer campestre L., Carpinus betulus L., Carpinus orientalis L. and various poplars – Populus pyramidalis L. and Populus deltoides Marsh. Revealed tree plants of parkland, which serve as a geochemical barrier. The study was carried out by experimental study of samples collected on the territory of the specified park plantings. In samples of soil and aboveground phytomass (leaves) taken uniformly from all parts of the crown, the content of gross forms of TM (Pb, Zn, Cu, Cd, Ni, Co, Mn) was determined by the atomic absorption method. To determine the dependences of the content of these metals in the soil and phytomass, equations were used, as a result of which the tightness of relations between the content of heavy metals in the interconnected leaf-soil systems was determined. To assess the biological accumulation of pollutants, the content of the gross forms of each element in the phytomass was determined, the coefficients of biological accumulation and their average values were calculated for all objects of study. The results of the studies are recorded in tables 1–3 and in the constructed graphs(Figures 1–10). In the park of NPO NEVZ, the highest CBN indicator 10,31 was registered with Fraxinus lanceolata Borch, the minimum – 2,77 for Ulmuslaevis.In the square on Troitskaya Square, CBN varies from 11.61 in Fraxinus lanceolata L., 10,5 in Acer campestre, 9,16 in Tilia cordata and up to 3,87 in Aesculus hippocastanum. On the territory of the children’s park “Kazachok”, CBN is approximately the  same for all woody plants and averages 4,72. In the park “Alexander Garden” this indicator is slightly higher, its maximum value – 11,02 is recorded in Fraxinus lanceolata Borch and 9,58 – in Acer platanoides. On the territory of the “Red Spring” grove, the average CBN is approximately the same for all woody plants and varies from 4,72 for Padus avium to 3,35 for Ulmus pumilas. The maximum average indices of KBN of technogenic elements in the phytomass of the park plantings of the city were 1,08 in the square of the Donskoy microdistrict and 1,60 in Troitskaya Square, which exceeds the same indicators for other landscapes. This can be explained by the fact that the Troitskaya Square and the Donskoy microdistrict are located in residential and industrial areas with a high intensity of road traffic and enterprises of industrial importance.

REFERENCES

1. Malysheva Z. G. Ecological substantiation of the use of walnut in bioproductive land reclamation of agrolandscapes of the steppe zone of the North Caucasus: dissertation for the study of an academic. Degree Dr. S.-H. sciences; 2007. – P. 86–100.

2. Malysheva Z. G. Accumulation of heavy metals by green areas of urban landscapes / Z. G. Malysheva // Scientific life. – M. : 2018. – No. 12. – P. 109–119.

3. Ivonin V. M. Forest landscaping / V. M. Ivonin, N. D. Penkovsky. – Rostov on Don : SKNTS VS. – 2003. – P. 134–145.