Dust-Catching Capacity of the Hawthorn Leaf Blade

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UDС

634.17:581.112.4

DOI:

10.17238/issn0536-1036.2018.3.20

Abstract

The state of the air basin is an important indicator of the ecological well-being of megacities. Almaty has been considered as one of the most greened large cities. However, an increase in the man-made load, population, and territory of the city, as well as construction and economic growth have a strong impact on the ecological situation. The green belt has been destroyed in recent years, and is replaced by new elements of urbanization. The goal of research is to study the dynamics of the dust-catching capacity of leaf blades of 5 hawthorn species used for planting in Almaty. Based on the administrative division, three contrasting ecological sites, located from the south to the north in the direction from the mountains, are selected for the research. Inside the plots the territory is conditionally divided into zones characterized by the contrast of the anthropogenic load, the level of pollution and the influence of environmental factors. Hawthorn leaf blades generally have a rough surface, which implies a high dust-catching capacity of these plants. Seasonal dynamics of the hawthorn dust-catching capacity of two ecological sites in comparison with the reference site is 1.8‒1.9 times less. Experimental data demonstrates that the dustcatching capacity of hawthorn leaves increases by the end of the vegetation period. Absolute impact can be noted by a category of plantation. When considering limit characteristic values, we should indicate the maximum belonging to C. sanguinea Pall. The degree of variability in the level of the dust-catching capacity of hawthorn in the two experimental plots is estimated as very low and low in comparison with the standard zone.

Authors

B.A. Kentbaeva, Doctor of Biological Sciences, Professor

Affiliation

Kazakh National Agrarian University, pr. Abaya, 8, Almaty, 050010, Republic of Kazakhstan; e-mail: kentbayeva@mail.ru

Keywords

hawthorn, leaf blade, dust-catching capacity, block green belt, roadside plantation

For citation

Kentbaeva B.A. Dust-Catching Capacity of the Hawthorn Leaf Blade. Lesnoy zhurnal [Forestry journal], 2018, no. 3, pp. 20–27. DOI: 10.17238/issn0536-1036.2018.3.20

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Received on March 06, 2018