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Abstract

Italian Lombardy poplar and Soviet Lombardy poplar are the main tree species that form urban landscaping in the south of Russia. Due to the rapid growth and resistance to the arid climate, from the middle of the last century, poplars were planted along the highways of settlements. After 40-60 years, poplar trees are experiencing problems that are manifested in the dryness of crowns and lateral skeletal branches.


The article reflects the research results of growth and current state analysis of Italian Lombardy poplar and Soviet Lombardy poplar. They growth in artificially regenerated stands located on the Kharkiv highway in Novocherkassk, Rostov region. The results of the study show that the age of Italian Lombardy poplar trees should not exceed 50 years in the South of Russia urban environment. Soviet Lombardy poplar have greater resistance to external anthropogenic factors. The trees of this species are less stagheaded, so the rejuvenating tree pruning can be carried out not earlier than 60 years. We found out that the rejuvenating tree pruning is a necessary operation for the trees of the genus populous. It must be carried out at the age when the stagheadedness begins to be noted. The increment of the poplars rejuvenating tree pruning are: 0.72 m/year in Italian; 0.79 m/year in the Soviet. They restore their decorativeness in the first year of the growing season.

Keywords

Italian Lombardy poplar (Populus pyramidalis L.), Soviet Lombardy poplar (Pоpulus sowietica pyramidаlis Gabl.), the rejuvenating tree pruning, ordinary landing, greening of highways.

Article Details

How to Cite
Kruzhilin, S. N., & Mishenina, M. P. (2019). Substantiation of rejuvenating tree pruning of representatives of the genus Рopulus l. In the urban city aglomerations. World Ecology Journal, 9(2), 1-20. https://doi.org/10.25726/worldjournals.pro/WEJ.2019.2.1

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