Changes in the structural indices of annual shoots of Quercus rubra under anthropogenic impact

Biosystems Diversity

V. P. Bessonova¹  A. P. Kryvoruchko¹ 

[1] Dnipro State Agrarian-Economic University

关键词: red oak;    anthropogenic impact;    characteristics;    periderm;    primary cortex and bark;    wood tissue;    shoot;   

DOI  :  10.15421/011729

学科分类：自然科学（综合）

来源: Oles Honchar Dnipro National University

【 摘 要 】

Air pollution is one of the important problems of large cities. In connection with this, comprehensive study of the mechanisms of the corresponding reactions of tree species, introduced in the process of landscaping, to various environmen tal factors is required. The aim of this study is to analyze the influence of urban technogenic environmental pollution on the anatomical characteristics of Quercus rubra Linnaeus, 1753 annual shoots. The object of research was 35-year-old plants of Q. rubra, which grew in a non-polluted site (conditionally clean zone), the Botanical Garden of DNU (plot 1), and in a polluted site (roadside planting) (plot 2) of Dnipro City. Industrial emissions of the city’s western, northeastern and northwest industrial complexes also have an effect on plants, depending on the wind direction. For anatomical research, the annual shoots were taken at the tips of the vegetation from the south-eastern side of the model trees at a height of 2 m and fixed in 70% alcohol. Cross sections were made at a distance of 1 cm from the beginning of growth. Phloroglucine was used to dye the cells. The influence of industrial and automobile emissions on the structural parameters of Q. rubra shoots was investigated. We established that the membrane thickened evenly in both control and experimental plants. Cork thickness of Q.

【 授权许可】

CC BY