scholarly journals TRANSFORMATION OF THE SOILS OF RECREATION AREAS IN THE CENTRAL PART OF KHABAROVSK

2021 ◽  
Author(s):  
В.И. Росликова
Keyword(s):  
Metal Content ◽  
Anthropogenic Impact ◽  
Soil Cover ◽  
Anthropogenic Impacts ◽  
Green Spaces ◽  
Ecological State ◽  
Recreation Areas ◽  
Geological Conditions ◽  
Local Areas ◽  
The Difference

Исследованы почвы зон отдыха центральной части г. Хабаровска. Сложность инженерно-геологических условий предопределило неоднозначность антропогенных воздействий и различие техногенного морфолитогенеза. Это нашло отражение в степени трансформированности почвенного покрова и экологического состояния. Степень загрязнения его тяжелыми металлами по данным усредненных оценок их содержания находится в пределах допустимых значений. При этом локальные участки достаточно напряжены, где индикатором такого состояния является чувствительность зеленых насаждений. Вусловиях интенсивного антропогенного воздействия оценка по суммарному показателю величин содержания тяжелых металлов не достаточно информативна, так как состояние локальных загрязненных участков нивелируется. Это свидетельствует о необходимости проведения более глубоких исследований почв с учетом ее базовых составляющих. The soils of recreation areas in the central part of Khabarovsk were studied. The complexity of engineering and geological conditions predetermined the ambiguity of anthropogenic impacts and the difference in technogenic morpholithogenesis. This is reflected in the degree of transformation of the soil cover and the ecological state. The degree of its contamination with heavy metals according to the average estimates of their content is within acceptable values. At the same time, local areas are quite tense, where the sensitivity of green spaces is an indicator of this state. In conditions of intensive anthropogenic impact, the assessment of the total value of the heavy metal content is not sufficiently informative, since the state of the local contaminated areas is leveled. This indicates the need for more in-depth studies of the soil, taking into account its basic components

scholarly journals Parklands of “Dynamo” park, “Naval Fleet Officers’ House” in the city of Khabarovsk and their ecological state

2021 ◽  
Vol 895 (1) ◽  
pp. 012038
Author(s):  
V I Roslikova ◽  
T I Matveenko
Keyword(s):  
Anthropogenic Impact ◽  
Soil Cover ◽  
Ecological State ◽  
Ecological Situation ◽  
Soil Environment ◽  
Elementary Landscape ◽  
Geological Conditions ◽  
Basic Parameters ◽  
The City ◽  
Bioindication Methods

Abstract On the example of the park zones of the city of Khabarovsk (“Dynamo” and “House of officers of the fleet”), a variety of transformation of the soil cover and the formation of new preferred formations were revealed. The specificity of the state of the soil environment of two parks, located in e same type of engineering-geological conditions, but different variants of anthropogenic impact, is revealed. The changes in the structure of the profiles depending on the position of the soil in the elementary landscape are considered and their biological activity is characterized. The use of bioindication methods indicates that the most comfortable park areas of the city are also susceptible to contamination with heavy metals. It is proposed to use the characteristics of the basic parameters of the soil cover as a promising approach in improving the environment. This will reveal the ecological situation of the territory and make appropriate decisions to improve its condition.

Mapping of soils and the content of chemical elements in the territory of the Kovykta gas-condensate field

2017 ◽  
Vol 923 (5) ◽  
pp. 17-25 ◽  
Author(s):  
I.A. Belozertseva ◽  
E.A. Istomina ◽  
S.V. Solodyankina
Keyword(s):  
Chemical Composition ◽  
Soil Cover ◽  
Chemical Elements ◽  
Anthropogenic Impacts ◽  
Mineral Oil ◽  
Gas Condensate ◽  
Ecological State

In this paper, the chemical composition of soils in the territory of the Kovykta gas condensate field is characterized on the basis of research peformed in 2004–2012. The presented results provide for a better understanding of the ecological state of soil cover, its resilience to anthropogenic impacts; and its possible disturbance caused by drilling and laying geophysical profiles. The degree of pollution of soil coverBa, Fe, Mn, Pb, Cd, Cu, Ni, Cr, Zn and is described by mineral oil. The analysis of soil borehole platforms pollution as a whole has shown pollution by their chemical elements which concern to three classes of toxicity

SELF-PURIFICATION OF SEA COASTAL WATER AREAS UNDER CLIMATIC AND ANTHROPOGENIC CHANGE

2017 ◽  
Author(s):  
Irina Mesenzeva ◽  
Irina Mesenzeva ◽  
Elena Sovga ◽  
Elena Sovga ◽  
Tatyana Khmara ◽  
...  
Keyword(s):  
Anthropogenic Impact ◽  
Water Exchange ◽  
Water Area ◽  
Clean Water ◽  
Ecological State ◽  
Anthropogenic Change ◽  
Run Off ◽  
Open Sea ◽  
Sevastopol Bay ◽  
Assimilation Capacity

The ability of a bay and gulf ecosystems to self-purification was estimated and the current ecological state of the Sevastopol Bay in whole and the separated parts of the bay was given as an example. A zoning by type of anthropogenic impact subject to the water exchange with the open sea and an influence of the Chernaya River run-off were taken into account. A comparative analysis of assimilation capacity of the most environmentally disadvantaged part of the Sevastopol Bay (the Southern Bay) and the clean water area, bordering on the open sea, was carried out. The hydrodynamic regime of the Sevastopol Bay was described using numerical modelling. The prospect, opportunity and examples of the methodology for assessing the assimilation capacity of marine ecosystems are demonstrated.

Transformation of Urban Mining Brownfields into Green Spaces and Local Housing Market Effects

2011 ◽  
pp. 77-96
Author(s):  
Dimitrios Damigos
Keyword(s):  
Environmental Economics ◽  
Delphi Method ◽  
Social Value ◽  
Green Spaces ◽  
Urban Green Spaces ◽  
Market Effects ◽  
Fuzzy Delphi ◽  
Recreation Areas ◽  
The Social ◽  
Land Redevelopment

Converting brownfields into green spaces and recreation areas creates a significant community asset. To date, however, remediation efforts have focused mainly on utilizing brownfields as productive properties in order to lessen financial costs and risks. The use of environmental economics has proved beneficial in providing a clear answer in regard to the social value of derelict land redevelopment. Using an illustrative example, the paper demonstrates the use of an expert judgment technique, namely the Fuzzy Delphi Method, which is applied as an alternative to approaches commonly used for the valuation of urban green spaces.

scholarly journals Anthropogenic impacts on Keshalia River, Eastern Nepal

2017 ◽  
Vol 7 (1) ◽  
pp. 105-111
Author(s):  
Jay Narayan Shrestha
Keyword(s):  
Anthropogenic Impact ◽  
Anthropogenic Impacts ◽  
Industrial Effluents ◽  
Fish Diversity ◽  
Dam Construction ◽  
Fish Ladder ◽  
Very High

The anthropogenic impact on Keshalia river, especially on fish diversity, is very high. Over fishing with unconventional fishing methods, disposal of domestic and industrial effluents, excess use of pesticides, dumping sites of municipalities, dam construction without fish ladder across the river and mining of sands and gravels are major anthropogenic impacts on the river.

scholarly journals Anthropogenic impact on the ecological state of Kamensk-Uralsky

2017 ◽  
Author(s):  
Vladimir Boskhaevich Boltyrov ◽  
◽  
Tatiana Sergeevna Bobina ◽  
Keyword(s):  
Anthropogenic Impact ◽  
Ecological State

The Effect of Total Precipitation of Various Periods to Flow Regimes in Mountainous Catchments in Japan : Considering the Geological Characteristics of Catchments

2021 ◽  
Author(s):  
Yuka Muto ◽  
Takeyoshi Chibana ◽  
Masafumi Yamada
Keyword(s):  
Sedimentary Rocks ◽  
Correlation Coefficients ◽  
Flow Regimes ◽  
Rate Of Change ◽  
Total Precipitation ◽  
Lower Type ◽  
Geological Characteristics ◽  
Mountainous Catchments ◽  
Geological Conditions ◽  
The Difference

<p>In order to conduct an appropriate management in each catchment, it is important to understand how the difference in geological conditions affect the relationship between precipitation and flow regimes.</p><p>Considering the differences in geological characteristics of catchments, this study aims 1)to clarify the period for calculating the total precipitation that is most influential to several levels of daily flow respectively and 2)to clarify the contribution of the change in the total precipitation of ‘the most influential period’ to the change in flow.</p><p>In this study, 63 mountainous catchments (dam catchments) within the Japanese Archipelago were selected as target areas. First, the 63 catchments were divided into 4 groups according to their geological characteristics. Second, from the observed data of daily flow lasting 26 years (from 1993 to 2018), 6 types of daily flow which represent flow of different scales within a year (1, 10, 25, 50, 75, 95 percentiles of daily flow within a year) were searched. In each geological classification, correlation coefficients between each 6 type of flow and total precipitation of various periods (from 2 days to 365 days) were calculated. Finally, for each geological classification and each type of flow, single regression analyses were conducted, setting the rate of change in flow amount as the objective variable, and the rate of change in total precipitation amount of the appropriate period as the explanatory variable.</p><p>As a result, in the analysis of correlation coefficients, significant differences among different geological classifications were seen for lower type of flows but not for higher type of flows. For catchments of volcanic rocks in the Quaternary period, total precipitation of 365 days before the flow occurrence had the highest correlation coefficient with lower type of flows. On the other hand, for catchments of sedimentary rocks in the Mesozoic or Paleozoic era, the most influential period was approximately 45 days, which was the shortest.</p><p>Also, increasing trends in flow (i.e. the rate of change in flow > 1.0) during the target period were seen regardless of the geological classification or the type of flow. However, from the simple regression analysis, the significant effect of the change in precipitation to the change in flow was only seen for annual maximum flow of catchments of sedimentary rocks from the Mesozoic or Paleozoic era. Except this specific geological characteristic and flow type, there is a possibility that other conditions of the catchments (e.g. change in land use) have larger effect to the change in flow compared to the change in precipitation.</p><p>In the analyses mentioned above, the effect of snowfall is not considered. Therefore, in the presentation, the difference between snow covered regions and others are compared in addition.</p>

scholarly journals Pedogenesis on volcanic rocks in protected landscape areas in Central and North Bohemia

2014 ◽  
Vol 9 (No. 4) ◽  
pp. 153-160 ◽  
Author(s):  
A. Žigová ◽  
M. Šťastný
Keyword(s):  
Soil Cover ◽  
Developmental Process ◽  
Volcanic Rocks ◽  
Clay Fraction ◽  
Chemical Properties ◽  
Parent Material ◽  
Soil Profiles ◽  
Pedogenic Process ◽  
Geological Conditions ◽  
Swelling Clay Minerals

The development of soil cover on volcanic rocks in Central and North Bohemia was analyzed. The study was performed in the protected landscape areas on basalt, andesite, and dolerite. Parent material was characterized on the basis of thin-section study. Petrography of the parent material makes it possible to document the differences in the texture, character, and amount of rock-forming minerals. All the studied sequences exhibit the same configuration of soil profiles but various thicknesses. The soil profiles were evaluated on the basis of particle size distribution, chemical properties, soil organic matter parameters, and mineral composition of clay fraction. The major specific pedogenic process in soils developed on volcanic rocks is weathering of parent material and development of the Bw horizon with the formation of mainly smectite from the group of swelling clay minerals. The results revealed differences in the formation of the Bw horizon which is significantly affected by the petrography of the parent material and local geological conditions. According to the type of volcanic rocks, the intensity of the developmental process of the Bw horizon is as follows: andesite (Týřovické skály) > dolerite (Záhrabská) > basalt (Březina).

scholarly journals Comparative Analysis of Kazakhstani and European Approaches for the Design of Shallow Foundations

2020 ◽  
Vol 10 (8) ◽  
pp. 2920
Author(s):  
Assel Shaldykova ◽  
Sung-Woo Moon ◽  
Jong Kim ◽  
Deuckhang Lee ◽  
Taeseo Ku ◽  
...  
Keyword(s):  
Bearing Capacity ◽  
Summation Method ◽  
Shallow Foundations ◽  
Shallow Foundation ◽  
Design Procedures ◽  
Geological Conditions ◽  
Elastic Settlement ◽  
Geotechnical Design ◽  
The Difference ◽  
Design Calculations

The design of shallow foundations is performed in accordance with different building regulations depending on geotechnical and geological conditions. This paper involves the design calculations applying Kazakhstani and European approaches. The design of shallow foundations in Nur-Sultan city in Kazakhstan was implemented by the calculation of bearing capacity and elastic settlement in accordance with the design procedures provided in SP RK 5.01-102-2013: Foundations of buildings and structures, and Eurocode 7: Geotechnical design. The calculated results of bearing capacity and elastic settlement for two types of shallow foundations, such as pad foundation and strip foundation, adhering to Kazakhstani and European approaches are relatively comparable. However, the European approach provided higher values of bearing capacity and elastic settlement for the designed shallow foundation compared to the Kazakhstani approach. The difference in the results is explained by the application of different values of partial factors of safety for the determination of bearing capacity and different methods for the calculation of the elastic settlement of shallow foundations (i.e., elasticity theory and layer summation method).

scholarly journals Carbon-Dioxide Thermo-Saline Springs in the Light of Modern Research

1928 ◽  
Vol 21 (4) ◽  
pp. 589-597 ◽  
Author(s):  
Adolf Schott
Keyword(s):  
Peripheral Blood ◽  
Peripheral Circulation ◽  
Complex Compounds ◽  
Plain Water ◽  
Peripheral Blood Flow ◽  
Natural Mineral ◽  
Mineral Springs ◽  
Geological Conditions ◽  
Saline Springs ◽  
The Difference

Investigations on the influence of natural Nauheim standing and running effervescent CO2 thermo-saline baths on the subcutaneous CO2 and O2 tension in gas under the skin in rabbits showed a decrease of the CO2 tension in all experiments. The O2 tension increased in 50 per cent. of the experiments, in the others it remained unaffected. The results are interpreted as due to an increase in ventilation and an increase in peripheral blood-flow, the peripheral blood-vessels being dilated. Plain water baths of the same temperature and duration did not show this effect on the peripheral circulation, both CO2 and O2 tension being decreased after the bath. The relations between these researches and other investigations on the effect of natural thermo-saline baths are discussed as well as the difference between the effect of natural and artificial baths. The special curative properties of fresh natural mineral springs are in some way connected with the composition of the salts as complex compounds and their molecular structure. These complex compounds being decomposed by heat, light or access of air, the special activity is lost. The presence of the salts as complex compounds in fresh natural mineral springs is supposed to be due to the special geological conditions under which these compounds are formed.

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