Tulkin U. Rakhimov, Ikram Yusupov, Zafar R. Boirov INFLUENCE OF INDUSTRIAL EMISSIONS ON MORPHOLOGICAL SIGNS OF LEAVES OF GREENING PLANTS
DOI: https://doi.org/10.15688/nsr.jvolsu.2020.2.3
Tulkin U. Rakhimov, Candidate of Sciences (Biology), Department of Environmental Protection and Ecology, Karshi Engineering and Economic Institute, Prosp. Mustakillik, 225, 180004 Karshi, Uzbekistan, This email address is being protected from spambots. You need JavaScript enabled to view it. .
Ikram Yusupov, Lecturer, Department of Environmental Protection and Ecology, Karshi Engineering and Economic Institute, Prosp. Mustakillik, 225, 180004 Karshi, Uzbekistan, This email address is being protected from spambots. You need JavaScript enabled to view it. .
Zafar R. Boirov, Assistant Lecturer, Department of Environmental Protection and Ecology, Karshi Engineering and Economic Institute, Prosp. Mustakillik, 225, 180004 Karshi, Uzbekistan, This email address is being protected from spambots. You need JavaScript enabled to view it. .
Abstract. Currently, studies of the industrial environment and related theoretical and applied environmental problems are undoubtedly relevant. Therefore, the indicators of environmental monitoring of greening tree species are the main indicators of the ecological situation in the industrial zones of the arid zone of the South of Uzbekistan. The article investigates the effect of SO2 on the morphometric index of leaf blades of some planted trees. Based on the information collected, a morphometric indicator of leaf blades and its relationship with the concentration of sulfur in the atmosphere are provided. Based on the changes in morphological and anatomical and some biological indicators, the degree of stability of greening species is revealed. The results obtained can be used in monitoring green spaces of industrial regions, as well as for predicting the effects of environmental pollution. The research results can serve as a scientific basis for the selection and regionalization of tree species for landscaping the industrial centers of the arid zone. According to our observations, changes in signs towards xeromorphy show a direct relationship with gas resistance, because these indicators depend on the structural features of the leaf blade. In particular, xeromorphic signs are the following: a decrease in the leaf blade, an increase in pubescence, an increase in the number of stomata per mm2, length of venation, etc. We recommend using ash for landscaping streets and parks in the arid zone. Due to the high decorative and drought-resistant properties, they should be used in group, linear, alley, as well as mixed plantings. Considering gas resistance, drought resistance, as well as salt tolerance of elm and quince, we recommend using them for landscaping industrial regions, as well as for planting shelterbelts. In large industrial centers, we recommend using maple, ash and elm for landscaping, as they have more resistant signs to toxicants, in particular to sulphurous anhydride. The analysis of the obtained research data allows stating that there is a relationship between the concentration of sulphurous anhydride and the morphometric indicators of leaf blades of greening trees in industrial zones
Key words: leaves, emissions, response, morphology, resistance.
Citation. Rakhimov T.U., Yusupov I., Boirov Z.R. Influence of Industrial Emissions on Morphological Signsof Leaves of Greening Plants. Natural Systems and Resources, 2020, vol. 10, no. 2, pp. 26-32. (in Russian). DOI: https://doi.org/10.15688/nsr.jvolsu.2020.2.3
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