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Anthropogenic impact on agricultural land in the Republic of Kazakhstan
2022
Zhyrgalova, Alima | Zhildikbayeva, Aizhan
The purpose of the article is to consider the features of the anthropogenic impact on agricultural land in the Republic of Kazakhstan (RK). The article deals with the current problem of agricultural land degradation, and desertification in Kazakhstan, where one of the causes is the anthropogenic activities of the population and the aridity of the country's climate. Most of the territory of Kazakhstan is located in conditions highly vulnerable to anthropogenic desertification when in combination with natural factors of desertification the ecological situation is sharply deteriorating. Another cause of land degradation is urbanization and intensive degradation of desert habitats — unsystematic road network, regulation of river flows, illegal cutting of saxaul for firewood for sale. As a result of urbanization and intensive agricultural development of the foothill strip in the south and east of the country, the natural vegetation cover is highly disturbed. Roads, pipelines, and power lines, which are being laid at an increasing rate, have a great impact on the fauna. The area of land occupied by mining enterprises is steadily growing. In the last 10 years, the areas of oil and gas extraction, development of uranium ores, etc. in Western Kazakhstan, the Eastern Caspian Sea region, the Betpakdala desert, etc. have been sharply increasing. As a result of insufficiently thought-out land management from water erosion 5.6 million hectares of arable land was affected and grain yield was reduced by 20–30%. Degradation of agricultural lands, including pastures, is 30–50% and higher % in 9 of 14 regions of Kazakhstan. The use of the existing model of agricultural development of raw materials leads to inefficient economic development and constantly increasing pressure on ecosystems. The soil in Kazakhstan is very vulnerable, as it is comprehensively affected by various anthropogenic factors that lead to the constant deterioration of its quality. Soils near the Aral Sea and the Caspian Sea are subjected to the most intensive degradation, as wind erosion is widespread there.
Показать больше [+] Меньше [-]The applicability of accessibility analyses in spatial planning
2017
Kurowska, K., University of Warmia and Mazury in Olsztyn (Poland). Faculty of Geodesy, Geospatial and Civil Engineering | Kietlinska, E., University of Warmia and Mazury in Olsztyn (Poland). Faculty of Geodesy, Geospatial and Civil Engineering
Accessibility is a popular concept in many research areas, including spatial planning, where it denotes the possibility of reaching a specific location. Accessibility is not a characteristic feature of a single location: it is always measured between at least two locations (places), and it is strictly determined by the mode of transport. Subject to the evaluated parameter, accessibility falls into different categories, including physical accessibility which is defined by distance (meters, kilometers), temporal accessibility which is expressed in minutes and hours, and economic accessibility which is denoted by cost. In highly urbanized areas and their rural outskirts, spatial policies need to be coordinated to guarantee the effective distribution of functions and services. The optimization of accessibility should be the key goal of spatial policies adopted at both local and metropolitan level. The aim of this study was to analyze the applicability of public data sources and GIS tools for analyzing and improving spatial accessibility. A wide range of tools and data supports detailed evaluations of the spatial coverage and effectiveness of services (public and commercial), multi-objective optimization of planned locations and determination of the optimal service areas (with the use of gravitation and potential methods). Spatial planning is a process of selecting the optimal and rational functions for the existing space. A very wide variety of analytical tools can be deployed to acquire and process public data and research data. The results of multi-objective analyses can be support the planning proces.
Показать больше [+] Меньше [-]The financial impact of urbanization costs in Poland at municipality level – the case of Wroclaw city
2019
Heldak, M., Wroclaw Univ. of Environmental and Life Sciences (Poland). Faculty of Environmental and Engineering and Geodesy. Dept. of Spatial Economy | Przybyla, K., Wroclaw Univ. of Environmental and Life Sciences (Poland). Faculty of Environmental and Engineering and Geodesy. Dept. of Spatial Economy
The study discusses the problem of financial impact on Wroclaw Municipality exerted by the costs of implementing decisions resulting from the selected local spatial development plans. Currently in Poland, at the stage of local spatial development plan establishment, a forecast of financial consequences is prepared. The expected own revenues and the costs of financial impact exerted on the municipal budget are presented in this document. The study facilitates making decisions about the final version of the local development plan. Taking into account the planned spatial development in the area of Wroclaw city, the urbanization costs exerting financial impact on the municipal budget were identified. The study analyses only the cost of implementing investments within the scope of the municipality own tasks, including the cost of constructing municipal roads, sanitary sewerage system, water supply system, public greenery facilities and land purchase for public investments. The analyses covered two selected areas of the city, located in its different parts. These are largely uninvested areas, predominantly constituting agricultural land, and such land development requires the construction of technical and social infrastructure facilities. The anticipated costs of implementing local development plans in force in various parts of Wroclaw indicate significant expenses to be covered by Wroclaw Municipality in order to build sewage systems and municipal roads. Taking up new development sites is also correlated with taking over the real properties by Wroclaw city, on which the implementation of public goals is planned.
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