Technogenic stress and its effect on deciduous trees (an example from parks in Yaroslavl)

Маракаев, О. А.; Smirnova, N. S.; Загоскина, Н. В.

doi:10.1134/s1067413606060026

Cited by 4 publications

(3 citation statements)

References 2 publications

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“…compared to the reference value. In the conditions of urban parks in the city of Yaroslavl, it was ascertained that as concentrations of pollutants in the atmospheric air increase, leaf growth is suppressed and the number and degree of their necrotic damage to Betula pendula, Tilia cordata and Populus nigra L. increase (Marakaev et al, 2006).…”

Section: The State Of Biometric Indices Of the One-year Shoots Of Robmentioning

confidence: 99%

The state of bio-ecological characteristics of the one-year shoots of Robinia pseudoacacia L. Under the conditions of industrial pollution

Yusypiva

Miasoid

2019

Ekológia (Bratislava)

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The paper studies the influence of industrial pollution on bio-ecological characteristics of the one-year shoot of Robinia pseudoacacia L. in the conditions of the city of Dnipro, Ukraine. It analyses the state of biometric parameters of the shoot and anatomic indices of the stem of the studied species exposed to toxic gases. It was found that there are adaptive changes in the histological structure of the stem of R. pseudoacacia under the conditions of technogenesis. The study revealed that bio-ecological characteristics of the black locust are highly resistant to industrial emissions with big shares of SO2 and NO2. It was suggested to use R. pseudoacacia for greening of the technogenic territories.

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Section: The State Of Biometric Indices Of the One-year Shoots Of Robmentioning

confidence: 99%

The state of bio-ecological characteristics of the one-year shoots of Robinia pseudoacacia L. Under the conditions of industrial pollution

Yusypiva

Miasoid

2019

Ekológia (Bratislava)

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“…Such a change may be an adaptation of the most affected by pollution and therefore less resistant to high concentrations of pollutants species of woody plants [14].…”

Section: Fig 2 the Proportion Of Necrotic Leaves (% Of The Sample) Of Deciduous Trees In Habitats With Different Degree Of Pollution In Amentioning

confidence: 99%

The Dependence of Morphological and Physiological Indicators of the Leaves of Woody Plants on the Degree of Technogenic Pollution

Rostunov

Konchina

Zhestkova

et al. 2017

ETR

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Plants of modern urban ecosystem suffer from negative effects of a series of technogenic pollution which leads to changes in their morphological and physiological state. The reason for this is the penetration of phytotoxicants into plant organs, primarily, into leaves, thus distorting the structural components of cells and their functioning. In various species the degree of this reaction is manifested differently, so this fact must be taken into consideration when creating environmentally effective plantations. For this purpose the integrated study of the impact of pollutants on the morpho-physiological state of deciduous trees was conducted. Some morphological, physiological and biochemical indicators of leaves of Tilia cordata Mill., Populus tremula L., Salix fragilis L., Salix alba L. from different urban areas, characterized by different levels of technogenic pollution, were also studied. It was found out that the increase of technogenic load led to the decrease in the size of leaves, the increase of their necrotization and the total ash content of the tissues of these organs as well as the reduction of the photosynthetic pigments concentration with increase of relative portion of carotenoids which is the most significantly revealed in the leaves of the lime-tree, brittle willow and, to a lesser extent, in the white willow. At the same time the increased relative portion of carotenoids in the photosynthetic organs in case of strong pollution by pollutants indicates an increase of the protective role of the yellow pigment. Besides, the increased ratio of chlorophyll a/b characteristic for the resistant plant species was established in the leaves of these trees, which is a sign of a higher potential photochemical activity of leaves and the rate of photosynthesis. All the studied morpho-physiological indicators characterize a greater resistance to pollutants of Tilia cordata, Salix fragilis, Salix alba, which can be recommended for the reconstruction of the sanitary and protective plantations of Arzamas. The studied tree species have a great capacity of gettering harmful technogenic substances with a further effective ability to accumulate them in the tissues of the leaves.

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“…Исследования ряда авторов показали, что изменения содержания пигментов в листьях являются маркерами техногенной нагрузки (Marakaev et al, 2006), причем это касается хлорофилла a, хлорофилла b, соотношения хлорофиллов и их суммы (Неверова, 2001; Цандекова, Неверова, 2010; Скочилова, Закамская, 2013). Некоторые авторы указывают на то, что снижение величины a / b может характеризовать газоустойчивость растений (Di Vittorio, 2009).…”

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Dynamics of chlorophyll concentration in the birch (Betula pendula) leaves under the conditions of technogenic pollution in the city of Biysk

Sokolova,

Kondrateva,

Kalgina

2023

bpssm

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The article considers the results of biochemical studies of chlorophyll content in leaves of birch growing in different conditions in the city of Biysk: control, parks, squares, highways, petrol stations, factories, thermal power plants. In park areas, compared with the control, the content of chlorophylls a and b and the a / b ratio are lower. The best conditions for the growth of birch trees (closeness of crowns, distance from highways, and lower frequency of attendance) contribute to an increase in the content of chlorophyll a and b in the leaves. The sparse location of trees in squares and their intensive visits, emissions from industrial enterprises, cars and thermal power plants lead to a decrease in the content of chlorophyll a and b in the leaves. Regardless of the growing conditions, a regular increase in the content of chlorophyll a is observed during the growing season. A change in the content of chlorophyll a in birch leaves has been revealed; in the city of Biysk, it is changing downward in the following row of growing places: control -> parks -> squares -> highways -> petrol stations -> factories -> CHP. In dynamics by month, a slight increase in the concentration of chlorophylls in July was detected in all places of birch growth, and then its decrease in August.

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Technogenic stress and its effect on deciduous trees (an example from parks in Yaroslavl)

Cited by 4 publications

References 2 publications

The state of bio-ecological characteristics of the one-year shoots of Robinia pseudoacacia L. Under the conditions of industrial pollution

The state of bio-ecological characteristics of the one-year shoots of Robinia pseudoacacia L. Under the conditions of industrial pollution

The Dependence of Morphological and Physiological Indicators of the Leaves of Woody Plants on the Degree of Technogenic Pollution

Dynamics of chlorophyll concentration in the birch (Betula pendula) leaves under the conditions of technogenic pollution in the city of Biysk

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