MANIFESTATIONS OF UNFAVORABLE GEOGRAPHICAL PROCESSES WITHIN THE SMOTRICH CANYON OF KAMENETS-PODOLSKY

Author(s):  
Vadym Menderetskyi ◽  
Volodymyr Mysko ◽  
Stanislav Prydetkevych

The research allowed the authors to identify various types of adverse, destructive and erosion processes in the canyon of the Smotrych River. Now the ecological situation within the Smotrytsya canyon is quite difficult. The main factor in the deterioration of the situation is anthropogenic and man-made load: quarrying, garbage accumulation, unauthorized agriculture on the slopes of the canyon. Within the Smotric canyon, natural water and wind erosion are manifested, which in most cases are combined and the processes of destruction as a result of their action are intensified. Studies of erosion processes in the canyon of the Smotrich River have revealed a great variety of their manifestations. Karst processes are a typical manifestation of water erosion in the study area. Among the surface forms of karst, microforms (crates of various types) predominate. Individual karst funnels are less common. We discovered a karst cave located near Bilanivska embankment. Its area is 6 m2. The walls are covered with cracks, dominated by horizontal, less vertical, but they are larger. Turfed, covered type of karst can be found on the section where the river Smotrich encircles the Old Town in the direction of the village. Poodles. Lateral erosion is due to slope processes and erosion of the riverbed. It causes the migration of the riverbed, watercourse, the formation of river meanders, widens the river valley. Within the Smotric canyon, this type of erosion occurs in places where the shoreline is formed of clay soil. Inflows and outflows of water masses during the season also change the structure of the soil. Wind deflation and weathering within the canyon are manifested in those areas where rock remains and leads to the formation of various forms, are evidence of long-term wind erosion. Over the centuries, these forms can change, collapse. Linear erosion includes slope processes under the influence of anthropogenic activity and temporary water flows, which form furrows, ravines, ravines. Bilanivska embankment is characterized by the development of a system of ravines that descend to the river floodplain as a result of temporary water flows, during heavy rainfall, heavy rains, melting snow. They are small, but descend to the river. There are ravines as a result of concentrated storm currents, which are formed during heavy rainfall Transport erosion occurs throughout the study area. The result of such erosion is narrow and wide paths, dirt and hard roads made of limestone and artificially covered and filled with rubble. Zoogenic (pasture) erosion is quite common in Smotrich canyon. Grazing of cattle (cows), horses or small animals (goats, sheep) is carried out everywhere. The lack of special pastures, the inability to keep animals in a tethered way, leads to the fact that animals graze on the slopes of the canyon, in the coastal zone, in parks, and goats graze even on steep terraces. During the last few years, the recreational service in the form of walks along the riverbed on the BRDM-2 vehicle has been causing a destructive impact on the ecosystem of the Smotrich River. Summarizing the results of our research, we should point out other negative impacts from tourism activities using military equipment: gradual destruction of the river bottom, acceleration of erosion processes on rocky and silty slopes, increasing turbidity, changing water circulation in the river, changing gorge, near Novoplan the bridge actually washes its supports, introduces fuel and lubricants into the water and with the wheels of the car feces of large animals, the noise scares away birds that nest in the coastal zone of the river. Key words: unfavorable geographical processes, ecological condition, Smotrich canyon, Smotrich river, erosion, pollution, sewage, landscape complexes, anthropogenization.

2020 ◽  
Vol 12 (3) ◽  
pp. 339-348
Author(s):  
Vladimir TATARINTSEV ◽  
◽  
Leonid TATARINTSEV ◽  
Alex MATSYURA ◽  
Andrei BONDAROVICH ◽  
...  

The aim of the work was the landscape analysis of agricultural geographical landscapes in the Altai Territory and elaboration of measures aimed at the rational use of agricultural lands. Environmental and landscape (landscape) approach became the main method of scientific research used in the analysis of modern agricultural landscapes. The cartographic method, using GIS-technologies, made it possible to digitize the obtained materials. Synthesized maps of agro-ecological, natural and other zoning of territories are based on topographic, soil, geobotanical and other thematic maps made during land surveying during the field survey. Retrospective analysis, induction and deduction methods,analysis and synthesis, as well as the abstract-logic method were also used in the work. Our main result was the analysis of land use territory for agricultural enterprise in municipal district of Altai Krai. Exploration of lands indicates a pronounced plant-growing specialization of JSC “Pobeda” with a developed animal breeding direction. Limiting factors affecting the rational use of land are natural and climatic conditions, terrain,unsystematic anthropogenic activity and, as a result, the development of erosion processes. The degree of eroded and deflated arable land is more than 50%, hay and pasture lands are also very unstable. Landscapes have been typified, based on which eleven types of land have been identified and their geomorphological description has been carried out. The first five types of land can be used for agricultural production with limitations compensated by crop technology and erosion control measures, the sixth and seventh types require grassing and, in some cases,conservation, the eighth and ninth types can be partially used for pasture and area valorization; the remaining two are not suitable for agricultural use but should be potentially used for planting and forest management. As a result of the presented transformation of agricultural lands, the structure of cultivated areas has changed. The area of arable land decreased by 877 ha, and of pastures by 365 ha,while the area under hayfields, fallow lands, and forest lands increased by 295, 191, and 875 ha respectively. Low-productive lands were withdrawn from agriculture. We suggested that the sustainability of agricultural land use was mainly caused by the reduction of anthropogenic load and increase in ecological equilibrium of the territory.


2020 ◽  
Vol 28 (1) ◽  
pp. 65-74
Author(s):  
Andrey N. Timofeev

The article gives a brief description of the Voronezh region, provides data on the cause of landslides in its territory. The cyclical nature of landslide processes is noted, which in the region is on average 6-8 years. Attention is focused on anthropogenic activity, leading to the occurrence of creeping layers of the earth. The main causes of erosion processes are: significant plowing of the area (80%), which is not subject to the rules of anti-erosion agrotechnology; the irrational use of pastures and hayfields; an extensive gully-beam network. The role of temporary reservoirs formed in the ruts of unpaved roads, passing along the slopes and ravines, as a source of overmoistening of the soil layers and initiation of landslide processes is considered. The analysis of the landslide distribution over the territory of the Voronezh region and their dependence on the network of dirt roads is given. The areas of the Voronezh region were ranked by the number of landslide processes associated with the impact of a number of unpaved highways. Of the 32 districts of the region, according to this ranking, 12 are extremely dangerous, very dangerous and dangerous, and the same areas have a very extensive network of unpaved roads running near ravines, steep banks of rivers and ponds, where potentially flow of landslide processes. Dirt roads often have relatively deep ruts where melted or rainwater accumulates, forming local micro-ponds. Flowing to the waterproof layer, water saturates the soil layer, which can slide down the slope, forming a landslide process. It is necessary to predict the possibility of the occurrence of dangerous natural phenomena when laying automobile dirt roads.


2015 ◽  
Vol 16 (1-2) ◽  
pp. 102-106
Author(s):  
A. P. Travleyev ◽  
V. A. Gorban

At the present time the great part of soils is exposed to various negative processes. One of the basic processes that lead to the degradation of soils in Ukraine is the erosion. According to the recent data, water and wind erosion covers 13.9 million hectares; it is about 33 % of the total arable land in the country. On this basis, the greater relevance belongs to the scientific studies displaying the features of negative phenomena of our soil, and, most importantly, the ways of solving of these urgent problems on the soil cover of Ukraine. The monograph «Soil erosion in Ukraine: the evolution of theory and practice» of such famous scientists in the field of Soil Erosion Science as Voloshchuk M. D., Petrenko N. I. and Yatsenko S. V. is one of such fundamental works. In the present monograph, considerable attention is paid to the periodization of the formation and development of the doctrine of soil erosion in Ukraine. The authors identify six basic stages of formation of the national Soil Erosion Science. The paper discusses the characteristic features of isolation of Soil Erosion Science as an independent scientific direction and a self-discipline, which are based on the works of such renowned scientists as P. S. Tregubov, M. N. Zaslavsky and G. I. Shvebs. A significant place in the monograph is devoted to the characteristics of the scientific centers of Ukraine, in which the Soil Erosion Science has been developed. These centers are distinguished by leading scientists, under the leadership of whom, the erosion processes have been studied. The authors of the monograph provides four main scientific centers of the country in the field of Soil Erosion Science development: National Scientific Centre «Institute of Agriculture of the National Academy of Agricultural Sciences» (central region), National Scientific Center «Institute for Soil Science and Agrochemistry Research named after O. N. Sokolovsky», Scientific-Technical Center «Fertility» (Kharkiv region), Odessa I. I. Mechnikov National University (south region), Lviv National Agrarian University, Institute of Ecology of the Carpathians of National Academy of Sciences of Ukraine, Ivan Franko National University of Lviv and others (west region). In addition to considering the features of the listed centers, in the work there is a presentation of a brief description of the project, research institutes, agricultural and agroforestry research stations that are active in a scientific work in relation to soil erosion processes. In the work, there are also the historical aspects and mechanisms for the further development of wind erosion researches. Considerable attention the authors of the monograph pay to the analysis of the current state, challenges and prospects of solving the problem on protecting the soil from erosion. The main problem of the country's soil, which is the cause of widespread erosion, is a very high agricultural development of the territory, more than half of which falls onto an arable land. At the end of the monograph, there are a large number of photos, provided by Professor M. D. Voloshchuk, which recorded various aspects of soil erosion manifestations, as well as the ways of its overcoming in the conditions of forest-steppe and steppe zones in Ukraine and on the territory of Moldova. The reviewed monograph is certainly a very relevant and timely generalizing scientific research that will be useful in the theoretical and practical use of students, academic staff of the natural and agricultural higher education institutions, research organizations.


2009 ◽  
Vol 1 (3) ◽  
Author(s):  
Vanya Naydenova ◽  
Eugenia Roumenina

AbstractOne of the priority lines of modern regional policy with regard to mining is a territory’s sustainable use. One of the key issues is the development of local level monitoring systems to assess and control territories that are subject to intensive anthropogenic activity. The current work proposes a developed geodatabase model for remote sensing and ground-based monitoring of the effects of coal mining at drainage level using geoinformation technologies. Based on this model, the Kutina geographic information system for the drainage basin of the Kutina River has been constructed. The geodatabase is open and may be updated and supplemented with other types of information. This is the first monitoring of coal mining’s anthropogenic impact on the land cover and the Kutina Pyramids natural landmark carried out on the territory of the Kutina River drainage basin, Bulgaria. It may assist local level managerial decision-making, among others. Generation of landslide processes and self-ignition of coal layers has been identified as well. The recorded change in the hydrographic network resulting from the performed open coal extraction affects directly the change of the erosion basis. Its increase enhances lateral erosion at the expense of vertical, which is one of the major causes for the Kutina Pyramids natural landmark’s degradation.


2019 ◽  
pp. 223-240 ◽  
Author(s):  
Gábor Négyesi ◽  
József Lóki ◽  
Botond Buró ◽  
Boglárka Bertalan-Balázs ◽  
László Pásztor

Wind erosion is one of the most important land degradation processes in Hungary in the areas with low yearly precipitation values. The total land area suffering from wind erosion is approximately 10,000 km2, 10 per cent of the country area. Observations and discussions on wind erosion and its negative impacts in Hungary started in the last century. Since the 1950s, scientists investigated wind erosion processes and its role in the evolution of alluvial fans in an integrative way, including laboratory measurements and field observations with respect to the stabilization and utilization of soils in agricultural areas. Since the late 2000s, there is an increasing demand worldwide to characterize the role of climate change and human activities in triggering land degradation processes. Studies have been conducted to investigate the mechanics, causes and control techniques related to wind erosion applying laboratory and field wind tunnel simulation tests and field observations. Some encouraging achievements have been made. In this paper we summarize the main research results of wind erosion research, and put forward some perspectives and suggestions on the problems of wind erosion research and control practices in Hungary.


Purpose. To identify the peculiarities of the recovery territories of the paradynamyc anthropogenic landscape system (PDALS) of the ecological network of Murovanokurylovetsky district of Vinnytsia region. Methods: field, theoretical generalization, analytical and cartographic analysis, logic, finding of empirical relationships, cartographic. Results. It was discovered that the areas of relative-natural landscapes occupy only a few percent of the area of ​​ Murovanokurylovetsky district of Vinnytsia region. Therefore, under such conditions, it was offered to form an ecological network as a paradynamyc anthropogenic landscape system. This allows to include valuable territories of different levels of anthropogenization in the ecological network. In the article, the ecological network is considered as a holistic paradynamyc anthropogenic landscape system of key, connecting and buffer territories, zones of potential renaturalization, eco-technical junctions and interactive elements. They are related to each other by the common genesis, simultaneity or sequence of origin and development, dynamic connections. The important structural elements of the paradynamyc anthropogenic landscape system of ecological networks are recovery territories (zones of potential renaturalization). Publications devoted to their description are currently single. Nevertheless, measures of renaturalization within the recovery territories allow to restore and introduce valuable nature sites into the structure of environmental protection systems. Therefore, the study of recovery territories is very relevant. The structure of the nature-protective paradynamyc anthropogenic landscape system of the ecological network of Murovanokurylovetsky district of Vinnytsia region identified the following recovery territories: Konyschivska, Zhytnykivska, Verbovetska, Vynohradnivska, Naddnistrianska, Zhvanska, Halaykivetska, Volodymyrivska, Murovanokurylovetska, Posuhivska, Dereshovska, Myhaylivetska, Yaltushkivska, Bilyanska, Karayetska, Nyshivetska, Kotyuzhanska, Blakitnivs'ka, Gorayska and Glibokodolinska. The characteristic features of the recovery territories of the nature-protective paradynamyc anthropogenic landscape system of the ecological network of Murovanokurylovetsky district of Vinnytsia region are analyzed in the article. It was discovered that natural components and landscape complexes within the zones of potential renaturalization have undergone a significant transformation under the influence of human anthropogenic activity. They are often polluted and devoid of original state. However, areas with remnants of landscape complexes that are close to natural ones are preserved in these territories. Under the conditions of total anthropogenic transformation of nature, recovery territories are one of the few centers of the existence of valuable species of vegetation and wildlife. The species of plants and animals of the Red Books of Vinnytsia region and Ukraine are found here. The article suggests renaturalization measures for each recovery territory of the nature-protective paradynamyc anthropogenic landscape system of the ecological network of Murovanokurylovetsky district of Vinnytsia region. The main environmental measures within the zones of potential renaturalization are overcoming erosion processes, restoration, care and protection of forest, meadow, steppe, wetland and meadow-steppe vegetation. The paradynamyc connections between zones of potential renaturalization and surrounding anthropogenic landscapes, local biocentres, regional and local ecocorridors, and other recovery territories are considered in detail. Conclusion. Consequently, 20 recovery territories are identified within the paradynamyc anthropogenic landscape system of the ecological network of Murovanokurylovetsky district of Vinnytsia region. Their total area is 6222.16 hectares, which is 7.02 % of the area of ​​the district. They cover the sources of the tributaries of the main rivers in the area, the steep slopes of the river valleys with erosion forms of relief, forest, meadow, meadow-steppe and wetland landscape complexes. Nature-protective measures within them will allow the degraded areas of nature to be restored. By intermediation of paradynamyc connections, they will improve the state of the environment. Under the conditions of renaturalization on the basis of the recovery territories, it will be possible to form new and expand existing biocentres, buffer zones, create interactive elements, and optimize local ecological corridors. This will improve the habitat of living organisms and ensure their recovery and conservation.


2021 ◽  
Vol 24 (1) ◽  
pp. 56-62
Author(s):  
Lenka Lackóová ◽  
Jana Kozlovsky Dufková

Abstract Soil erosion by wind is the primary land degradation process which affects natural environments and agricultural lands. In agricultural lands, soil erosion by wind mainly results from removing of the finest and most biologically active part of the soil richest in organic matter and nutrients. Repeated exposure to wind erosion can have permanent effects on agricultural soil degradation. Knowing spatial and temporal changes in soil conditions and soil erodibility is essential to understand wind erosion processes. There are many methodologies to predict the susceptibility of landscape to erosion. The more complex is the scheme combining multiple factors, the more accurate the estimate is. There are very few studies on mapping the changes in soil grain size and erodible fraction due to wind erosion. Existing studies only deal with eroded soil units (where particles are removed – deflation) and not the eroded units (areas) to which the eroded particles are wound – accumulated. Prevailing wind direction should also be taken into account when mapping changes in erodible fractions of wind-eroded soils and the nature of the soil (whether soil particles accumulate or deflate). In this study the “historical“ grain size distribution of the soil in three cadastral areas using data from complex soil survey (1968) and year 2018/2019 was analysed. Erodible fraction change was also calculated and compared for both time periods.


Author(s):  
Leon Lyles ◽  
G. W. Cole ◽  
L. J. Hagen

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