scholarly journals Changes of the ecological state of the geological environment of the urbanized territory from the influence of the technogenic geophysical field of Syktyvkar

Author(s):  
А. N. Vikhot ◽  
2021 ◽  
Vol 22 (6) ◽  
pp. 36-44
Author(s):  
Valentyna Loboichenko ◽  
Nataliia Leonova ◽  
Roman Shevchenko ◽  
Victor Strelets ◽  
Andriy Morozov ◽  
...  

Author(s):  
G. I. Rudko ◽  
Ye. O. Yakovlev

The article deals with the study of geotechnical conditions in Kryvbas. The major factors of technogenic changes in an ecological state of the geological environment during development of ferruginous quartzite deposits have been determined. The big mining complex in Kryvbas is a complex natural-technogenic geosystem with the mainly irreversible use of raw material resources the renewable ability of which is quite low. One of the main factors of the environmental impact of PGTS Kryvbas is the formation of signi


Purpose. Coverage of some aspects that influence the formation of landscapes. Among the main objectives of the study: to consider the anthropogenic load as one of the factors influencing the development and change of landscapes; to give an analysis of the scientific works of scientists who have considered issues of landscape science in general, as well as anthropogenic landscape science; consider the importance of research results that can be used in projects for the conservation and sustainable use of natural resources. Results. The landscape, being a multifunctional education, is suitable for performing a different type of activity, but the functions it performs should correspond to its natural properties and resource potential. One of the basic principles of the protection of natural landscapes is the preservation of their structure and nature of functioning in conditions of intensive environmental management, and as a result of anthropogenic pollution. Conducting environmental management in any territory requires an objective and comprehensive environmental assessment of the state of the environment. Integral assessment of the state of the environment and the geological environment in particular (the natural-geological environment) is the most complex geo-ecological task located in the cognitive methodological and methodological chain: system approach → system analysis → integral assessment. Conclusions. Since there is no single integral indicator of the ecological state in nature, a number of bioindication, spatial and dynamic indicators serve as criteria for assessing the ecological state of natural environments and ecosystems, and the integral assessment is based on a certain number of the most representative indicators.


2019 ◽  
Author(s):  
V.B. Kalmanova

В статье представлены результаты исследования экологогеохимического состояния снежного покрова как индикатора качества атмосферного воздуха г. Биробиджана. Выявлены основные природные и антропогенные факторы, предопределяющие экологическое состояние городской территории в зимний период (климатические, планировочная структура, стационарные и мобильные источники загрязнения). Определено, что выбросы основных загрязнителей во время отопительного сезона превышает летний в 6,5 раз. Проведены геохимические исследования снежного покрова на 60 экспериментальных площадках, заложенных в различных функциональных зонах города. Выявлено значительное превышение тяжелых металлов над фоновым уровнем: железа до 60, марганца до 50, меди до 40, цинка до 20, никеля до 12, свинца до 10, кобальта до 6 раз. С 2003 по 2018 годы содержание химических элементов в снеге увеличилось в 2 раза за счет мобильных источников загрязнения, ТЭЦ, котельных. Проведена сравнительная характеристика накопления тяжелых металлов в снеге за 2003 и 2018 годы и установлен ранжированный ряд загрязняющих токсичных веществ. Разработана шкала оценки загрязнения депонирующих сред по суммарному показателю концентрации тяжелых металлов, согласно которой в Биробиджане выявлено 5 уровней загрязнения снежного покрова. В целом экологическое состояние урбанизированной территории признано неудовлетворительным (8 площади территории относится к очень высокому, 14 к высокому, 21 к выше среднему, 27 к среднему уровням загрязнения, 30 к относительно чистым районам города). По полученным результатам разработана карта в программе ArcView GIS Экологогеохимическое районирование территории г. Биробиджана по уровню загрязнения снежного покрова с выделением наиболее загрязненных участков (70 от общей площади города является загрязненной). По результатам проведенных исследований предложены конструктивные методы планирования урбанизированной территории с целью улучшения ее экологического состояния: проведение геомониторинга (контроль загрязнения снежного покрова и своевременный его вывоз на специально оборудованные полигоны). Snow cover is taken as an indicator of air quality using Birobidzhan, a middlesize city in the Russian Far East, as a case study. The main natural and manmade determinants influencing the ecological state of the urban area in winter are identified: climate, a planning structure, and the stationary and mobile sources of pollution. During the heating season the emission of major pollutants exceeds the summer level by 6.5 times. The geochemical study of snow cover was performed at 60 experimental sites in different functional urban areas. A significant excess of heavy metals over the regional background level was revealed: iron up to 60 times, manganese up to 50, copper up to 40, zinc up to 20 , nickel up to 12, lead up to 10, cobalt up to 6 times. From 2003 to 2018 the content of chemical elements in snow increased in 2 times due to the mobile sources of pollution, thermal power plants, and boilers. The comparative characteristic of accumulation of heavy metals in snow for 2003 and 2018 is carried out, and the ranked number of polluting toxic substances is established. The scale of pollution assessment in depositing environments was developed using the cumulative indicator of heavy metal concentration. Five levels of snow cover pollution are found in Birobidzhan: low, moderate, above moderate, high and very high. As a whole, the ecological state of the urban area is considered as unsatisfactory (8 of the area with a very high level of pollution, 14 with high, 21 above moderate, 27 a moderate level of pollution, 30 a relatively clean area). According to the results, a map was developed in the ArcView GIS program Ecological and geochemical zoning of Birobidzhan, using the level of the snow cover pollution with the allocation of the most polluted areas (70 of the total area of the city is polluted). According to the results, a constructive method of planning in an urban area is proposed in order to improve its environmental condition: geomonitoring as a control of pollution in snow cover and its prompt removal to specially equipped landfills.


2016 ◽  
Vol 52 (4) ◽  
pp. 19-31 ◽  
Author(s):  
Ye. P. Belous ◽  
S. S. Barinova ◽  
P. D. Klochenko ◽  
V. A. Zhezherya ◽  
T. P. Zhezherya ◽  
...  

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